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Powertrain Component Manufacturers

Last updated: January 2026

This directory lists 104 powertrain component manufacturers across the United States, from precision machinists specializing in gear sets and camshafts to advanced foundries producing intricate engine blocks and transmission cases.

Buyers in this space are frequently solving challenges related to achieving precise dimensional tolerances for rotating components, managing complex material properties under extreme operating conditions, or integrating multiple sub-assemblies into a cohesive system. They need partners who can consistently deliver parts with minimal runout, manage critical-to-function features like bearing journals and seal surfaces, and ensure robust thermal management capabilities for components subject to high heat loads.

The supplier landscape for powertrain components is diverse. Some manufacturers excel in high-volume, dedicated production lines for specific parts like pistons or connecting rods, often leveraging extensive automation and single-piece flow. Others are specialists in low-volume, high-complexity components for performance or niche applications, requiring extensive engineering support, sophisticated 5-axis machining, or additive manufacturing capabilities for prototyping and tooling. There are also suppliers focused purely on sub-assembly integration, taking individual components and building complete modules such as differentials or e-axles, requiring strong supply chain management and final test capabilities.

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Company Directory

104 companies nationwide

Ace Manufacturing and Parts Company

Ace Manufacturing and Parts Company is a manufacturer specializing in heavy-duty clutches and a variety of clutch components. The company is known for its innovative leadership within the industry, providing essential powertrain components. It directly serves industrial and commercial B2B customers.

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AES Modules

Jacksonville, FL

Based in Jacksonville, FL, AES Modules repairs and remanufactures automotive control modules, including Engine Control Modules (ECM), Powertrain Control Modules (PCM), and Transmission Control Modules (TCM). They serve nearly 50 vehicle makes, leveraging extensive experience to provide quality repair and remanufacturing services.

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Consolidated Industries, Inc.

York, NY

Consolidated Industries, Inc. is a manufacturer of precision forgings, serving the aerospace, defense, power generation, and automotive markets. The company produces components essential for various industrial applications, including powertrain systems, within its US facilities.

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Aichi Forge USA, Inc.

Aichi Forge USA, Inc. specializes in manufacturing powertrain components like crankshafts and connecting rods for ICE and hybrid propulsion, as well as heavy-duty drivetrain and chassis components. Utilizing custom impression die forging, the company serves automotive, truck & bus, industrial, agriculture, construction, and general aviation sectors.

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Amsted Automotive

Beaver Dam, WI

Amsted Automotive designs and manufactures high-performance powertrain components for global vehicle and industrial applications. Leveraging expertise in cold forming and powder metallurgy, they engineer differentiated torque management solutions to improve efficiency, performance, and packaging. The company delivers precision and durability for its customers.

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Bandit OffRoad

Bandit OffRoad custom manufactures driveshafts for a range of vehicles, including automobiles, Jeeps, trucks, powersports, ATVs, and SxS. The company utilizes advanced driveshaft machines, mills, and lathes in its manufacturing processes.

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Blue Ridge Pressure Castings

Blue Ridge Pressure Castings specializes in high-pressure aluminum die casting, machining, and assembly. They produce complex transmission and engine components for the automotive, heavy truck, and engine manufacturing industries. With in-house engineering, tooling, and finishing, the company provides precise, high-quality solutions.

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BOOSTPOWER USA

BOOSTPOWER USA specializes in high-performance marine and automotive powertrain components, offering custom engine builds, rebuilds, and upgrades. They provide EFI systems, supercharger and turbo kits, and complete engine assemblies. Services include machine shop operations, installation, and EFI tuning for various vehicle types.

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Cast Metals Technology

Union City, OH

Cast Metals Technology is an American-made, full-service aluminum casting and machining company based in Union City, OH. Specializing in low and high-volume aluminum sand castings, they offer turn-key solutions from concept to final machining. Capabilities include tooling and solidification analysis, providing high-quality finished products for industrial customers.

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California Performance Transmission II

Huntington Beach, CA

Based in Huntington Beach, CA, California Performance Transmission II specializes in custom-built 200-4R and 700-R4 transmissions. The company also supplies high-quality torque converters and various related powertrain components and parts for performance vehicles.

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Custom Power

Fountain Valley, CA

Custom Power designs and manufactures custom battery packs and battery management systems. Specializing in complex Defense & Aerospace, Medical, and Industrial applications, the company offers tailored lithium-ion designs and various other chemistries. They provide comprehensive battery testing capabilities for advanced electric powertrain solutions.

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Denison Industries

Denison, TX

Based in Denison, TX, Denison Industries specializes in precision machined aluminum castings and complex components. They offer versatile sand casting foundry services and are AS 9100 D & ISO 9001:2015 certified. The company provides cast aluminum powertrain components, including transmission housings for school buses, for automotive, aerospace, and defense industries.

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Dexter Group

Elkhart, IN

Dexter Group is a prominent supplier of axles, doors, venting products, and related components. They serve a diverse range of industries including utility trailer, RV, heavy duty, and recreational boating, providing essential parts for vehicle powertrains and systems.

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Seres

Milpitas, CA

Based in Milpitas, CA, Seres is an E-Powertrain technology development and manufacturing company. It produces E-Drive Systems, E-Motors, and Generators, driving automotive energy iteration for electric commercial and passenger vehicles, as well as skateboard platforms.

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Dynatrac Products, LLC

Dynatrac Products, LLC manufactures high-performance axle assemblies and heavy-duty hub conversion kits for various vehicles, including Jeep and Dodge models. Their product line features ProRock axles, Free-Spin kits, and ProGrip brake systems. All components are 100% engineered, manufactured, and assembled in the USA, providing essential powertrain components for automotive applications.

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TREMEC Electric GT

Huntington Beach, CA

TREMEC Electric GT provides OEM EV turnkey powertrains and platform solutions for low volume manufacturing, specialty builders, and aftermarket vehicle conversions. The company develops proprietary EV components, including e-Crate Systems, and offers EV Mobility System technology. They integrate complete EV powertrains into various vehicle applications.

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Elgin Industries

Elgin, IL

Based in Elgin, IL, Elgin Industries manufactures a broad range of engine and chassis components for the transportation industry. The company provides products such as camshafts, connecting rod bolts, and flywheels to vehicle OEMs and engine rebuilders globally.

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Engine Power Components

Grand Haven, MI

Based in Grand Haven, MI, Engine Power Components manufactures precision engine camshafts and balance shafts. The company provides strategic engineering solutions and high-quality powertrain components to globally recognized engine manufacturers. Operating from US facilities, EPC serves a worldwide customer base, collaborating to solve complex problems.

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Flux Power

Vista, CA

Flux Power manufactures advanced lithium-ion battery packs and energy storage solutions. These cutting-edge batteries power electric ground support equipment, material handling equipment, and various industrial applications, including AGVs and AMRs. The company focuses on clean energy innovation.

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Gearmakers Corporation

Gearmakers Corporation specializes in the precision manufacturing of custom and production gears and machine parts for industrial power transmission. Services include gear design, engineering, reverse engineering, and gearbox repair. They serve power generation, heavy construction, mining, oil-gas production, and material handling industries.

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Geartec

Willoughby, OH

Based in Willoughby, OH, Geartec specializes in industrial gear manufacturing, custom gears, and precision machining. The company also provides comprehensive gearbox repair services, catering to industrial clients requiring essential powertrain components for their machinery.

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IMI Performance Products

Whittier, CA

IMI Performance Products specializes in custom-built starter motors. Based in Whittier, CA, the company manufactures high-torque starter solutions designed for demanding industrial applications, including farm equipment. They provide reliable and smooth engine startups even in challenging conditions, serving commercial clients with specialized powertrain components.

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IHI Turbo America

Shelbyville, IL

IHI Turbo America is the US subsidiary of IHI Corporation, specializing in the design and manufacture of high-performance turbocharger and supercharger products. Based in Shelbyville, IL, the company serves customers across North and South America with advanced powertrain components for various applications.

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Ilmor Engineering

Plymouth, MI

Based in Plymouth, MI, Ilmor Engineering specializes in the design, development, testing, and precision manufacture of engines and powertrain components. They serve racing, OEM, mainstream, performance, and niche markets, including being the sole engine supplier for MasterCraft's tow sport crafts.

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IPD

Carson, CA

Based in Carson, CA, IPD specializes in premium quality heavy-duty engine parts, including Caterpillar® 3500 cuffed liners. The company features a global manufacturing and distribution presence, offering quality powertrain components with 70 years of industry experience.

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JACO Machine Works

Scotts Valley, CA

JACO Machine Works, an ISO9001:2015 and AS9100D certified manufacturer in Scotts Valley, CA, specializes in precision components. They provide custom CNC machining services, including 5-axis milling, vertical milling, and screw machining, along with laser welding. Their capabilities support complex industrial applications, like turbines, crucial for powertrain manufacturing.

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KHK USA Inc

KHK USA Inc. specializes in supplying precision metric gears to North American customers. The company offers factory-direct shipping for all stock gears, ensuring rapid delivery across the USA. KHK USA also provides custom gear manufacturing services and free gear calculation software for design assistance.

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Lithos Energy, Inc.

Hayward, CA

Based in Hayward, CA, Lithos Energy manufactures high-performance, modular battery systems. These customizable systems feature proprietary BMS, advanced thermal management, and ultra-durable enclosures. Designed for demanding applications, they support faster product development and scalability for electric powertrain solutions.

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Machine Service, Inc.

Waukesha, WI

Based in Waukesha, WI, Machine Service, Inc. (MSI) specializes in manufacturing and repairing industrial drive shafts, drivelines, and power transmission components. They provide precision parts for industrial, marine, and vehicular applications worldwide, building on a tradition in the machining industry since 1948.

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MacLean-Fogg Component Solutions

Mundelein, IL

Based in Mundelein, IL, MacLean-Fogg Component Solutions manufactures custom components for diverse powertrain applications. They specialize in cold-formed and precision-machined parts, offering fasteners and engineered components. Serving automotive, heavy duty truck, industrial engines, off-highway, and military sectors, the company leverages its multiple advanced US facilities.

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Mark Williams Enterprises

Louisville, CO

Based in Louisville, CO, Mark Williams Enterprises manufactures high-performance powertrain and driveline components in the USA. They specialize in chromoly, aluminum, and carbon fiber driveshafts, utilizing patented Accubond technology. Their product range includes axles, modular rear ends, third members, and yokes for drag racing applications.

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McLeod Racing

Anaheim, CA

McLeod Racing is a manufacturer of high-performance driveline components for the automotive aftermarket and motorsports. Based in Anaheim, CA, the company specializes in producing clutches, flywheels, and hydraulic systems designed for street performance, drag racing, and road racing applications. Their products are proudly made in the USA.

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Melling Engine Parts

Jackson, MI

Melling Engine Parts, located in Jackson, MI, manufactures high-performance powertrain components. They produce essential engine parts like oil pumps, camshafts, and valve train components. Serving both original equipment manufacturers (OEMs) and the automotive aftermarket, Melling provides reliable solutions for vehicle engine systems.

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Mitchell Overdrive Manufacturing

Colusa, CA

Based in Colusa, CA, Mitchell Overdrive Manufacturing specializes in precision-crafted powertrain components. The company manufactures high-quality overdrives and transmissions for vintage and antique automobiles like Model A and Ford V-8. They offer dependable products built with precision workmanship in their family-owned shop.

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North American Clutch Corporation

Milwaukee, WI

North American Clutch Corporation, based in Milwaukee, WI, is an ISO-certified manufacturer of powertrain components. Their product line includes centrifugal clutches for industrial and go-kart applications, clutch brakes, reduction gearboxes, actuators, spindle assemblies, and sensors, serving a wide array of industries.

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Northern Industrial Manufacturing

Harrison Twp, MI

Northern Industrial Manufacturing, based in Harrison Twp, MI, is an automotive Tier 1, 2, and 3 supplier. They manufacture precision made-in-USA transmission components, including spacers, washers, and shims. The company specializes in precision grinding and metal stamping, serving the automotive industry with high-quality parts and rapid delivery.

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OGS Industries

Akron, OH

Based in Akron, OH, OGS Industries manufactures high-quality engine components and precision transmission parts. With over 60 years of experience, the company specializes in producing robust parts designed to enhance vehicle performance and reliability for various applications.

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Ogura Industrial Corp

Somerset, NJ

Based in Somerset, NJ, Ogura Industrial Corp manufactures electromagnetic clutches and brakes. They offer over 5,000 models with torque capacities up to 25,000 lb.ft. serving diverse powertrain applications like gas/diesel engines, electric motors, and PTO systems. The company is ISO and IATF certified.

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Powertrain Industries

Reno, NV

Based in Reno, NV, Powertrain Industries specializes in providing unique driveline solutions for the automotive industry. They manufacture or supply uncommon powertrain components, including driveshafts, CV yokes, and center supports, for a wide range of classic and modern vehicles, serving mechanics internationally.

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Powertrain Products

Based in Stevensville, MD, Powertrain Products specializes in OEM quality remanufactured powertrain components. The company supplies engines, transmissions, differentials, and transfer cases for a variety of vehicle years, makes, and models.

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McLeod by PowerTrain Technology, Inc.

Algonquin, IL

Based in Algonquin, IL, McLeod by PowerTrain Technology, Inc. manufactures multi-disc racing clutches and premium driveline components for high-performance automotive applications. The company engineers and produces products like clutch and flywheel assemblies, bellhousing kits, and hydraulic release bearings with aerospace quality tolerances.

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Precision Turbo & Engine

Crown Point, IN

Precision Turbo & Engine, based in Crown Point, IN, specializes in manufacturing high-performance turbochargers and related components for street and race applications. The company develops advanced turbocharger technology, including compressor covers and wheels with flow enhancements, to boost vehicle power and efficiency for the aftermarket.

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Precision Shaft Technologies

Clearwater, FL

Based in Clearwater, FL, Precision Shaft Technologies manufactures custom-engineered, USA-made driveshafts for high-performance applications. Specializing in powertrain components, the company designs each shaft to exact specifications, considering horsepower, RPM, length, and critical speed for optimal fit and performance.

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QTC Metric Gears

Hicksville, NY

Based in Hicksville, NY, QTC Metric Gears manufactures a comprehensive range of metric gears and gear products for industrial applications. They supply spur, helical, internal, miter, bevel, screw, and worm gears, along with various racks. The company offers both replacement and OEM solutions, utilizing modular manufacturing for custom configurations and materials.

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Race Engine Systems

Santa Maria, CA

Based in Santa Maria, CA, Race Engine Systems specializes in the design, assembly, and development of custom racing engines. Services include cylinder head R&D, porting, camshaft specification, and engine dyno-tuning. Leveraging over 20 years of expertise and advanced technologies, they ensure peak performance and reliability for diverse motorsports applications.

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Race Winning Brands

Mentor, OH

Race Winning Brands, headquartered in Mentor, OH, manufactures high-performance powertrain components for automotive and powersports aftermarkets. This USA-based company specializes in engine and driveline parts, serving enthusiasts and professionals with quality products through its diverse brand portfolio.

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RAM Clutches

RAM Clutches manufactures high-performance powertrain components such as clutch kits, flywheels, and hydraulic systems. Since 1971, the company has specialized in producing robust race clutch systems and other critical drivetrain parts for various automotive applications, all proudly made in the USA.

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Reuland Electric Motors

Industry, CA

Reuland Electric Motors custom designs, engineers, and manufactures heavy-duty electric motors. With over 85 years of experience, the company serves industries including crane, hoist, industrial, agricultural, pump, and military applications. All custom motors are proudly made in the USA.

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Rotomaster

Mesa, AZ

Based in Mesa, AZ, Rotomaster designs and manufactures turbochargers, cartridges, and related components. With over 40 years of experience, the company serves Tier One suppliers and the aftermarket. They provide essential powertrain components for various industrial and automotive applications.

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South Bend Clutch

Mishawaka, IN

Based in Mishawaka, IN, South Bend Clutch engineers and manufactures premium powertrain components. They specialize in single and dual disc clutch kits, flywheels, and hydraulic systems for diesel trucks. Their products cater to popular platforms like Cummins, Power Stroke, and Duramax, providing robust solutions for demanding applications.

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Stafl Systems LLC

South San Francisco, CA

Based in South San Francisco, CA, Stafl Systems LLC specializes in rapid prototype fabrication, circuit board assembly, and battery pack manufacturing. The company leverages in-house tools to produce custom electronic and power solutions, well-suited for developing components for modern powertrain systems.

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Stealth EV

Carson, CA

Stealth EV, based in Carson, CA, manufactures premium electric vehicle (EV) parts and conversion kits using high-quality materials. Since 2014, the company has provided specialized components for the EV market, focusing on solutions for vehicle electrification projects and upgrades.

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Systrand

Brownstown, MI

Systrand provides high-precision, high-volume manufacturing and assembly for drivetrain systems. With over 40 years of experience, this ISO/IATF 16949 certified Tier 1 supplier specializes in precision machining and gear manufacturing, consistently meeting tight tolerances and low NVH levels.

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US Powertrain

Spirit Lake, IA

Based in Spirit Lake, IA, US Powertrain manufactures and remanufactures automotive drivetrain and powertrain components. The company specializes in improving original OEM designs for parts such as transfer case and axle assemblies, differential components, and other related drivetrain products.

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Wabash Castings Aluminum Foundry

Wabash Castings Aluminum Foundry operates as a dedicated facility specializing in the manufacturing of aluminum sand casting parts. The company produces precision components, focusing on delivering high-quality products efficiently and within budget for various industrial applications, including those within the powertrain sector.

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Weapons Grade Fabrication

Camarillo, CA

Weapons Grade Fabrication, based in Camarillo, CA, specializes in custom fabrication, including CNC cutting, welding, and prototyping. They offer vehicle customization services such as engine swaps, suspension work, and drivetrain modifications, indicating capabilities relevant to powertrain components. The company also produces premium truck accessories.

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Wichita Clutch

Wichita Falls, TX

Based in Wichita Falls, TX, Wichita Clutch manufactures heavy-duty clutches and brakes. These robust components are engineered to endure the demanding conditions of diverse industrial applications globally, providing essential powertrain and motion control solutions for machinery and equipment.

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Wrightspeed

Alameda, CA

Based in Alameda, CA, Wrightspeed specializes in manufacturing revolutionary electric powertrains. Their RePower Platform converts existing diesel, class 6 & 7 trucks and buses into clean, efficient electric vehicles. The company focuses on electrifying commercial diesel fleets with advanced powertrain components and conversion solutions.

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American Axle & Manufacturing

Detroit, MI

American Axle & Manufacturing is a global Tier 1 automotive and mobility supplier. The company designs, engineers, and manufactures advanced driveline and metal forming technologies. They provide critical components for vehicles, contributing to a safer, greener, and brighter future in the automotive industry.

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Allison Transmission, Inc.

Indianapolis, IN

Based in Indianapolis, IN, Allison Transmission, Inc. manufactures automatic transmissions and propulsion systems. The company provides hybrid propulsion solutions for commercial vehicles, defense, mining, and off-highway applications. They also offer cross-drive transmissions and secure contracts for major defense projects, serving a diverse range of industrial customers.

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Atlantic Sintered

Based in Wrentham, MA, Atlantic Sintered manufactures high-density powertrain components, precision powdered metal gears, sprockets, and complex structural parts. They combine advanced gear engineering with proprietary processing techniques for demanding applications. Capabilities include multi-level structural parts, high-strength gearing, CNC machining, and heat treatment.

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Marine Power USA

Ponchatoula, LA

Based in Ponchatoula, LA, Marine Power USA manufactures inboard marine engines and powertrain components. The company provides longblock, partial, and complete engine packages for the marine industry. Leveraging an in-house machine shop and a relationship with GM, they focus on innovative engineering and development.

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Moeller Aerospace

Harbor Springs, MI

Moeller Aerospace, based in Harbor Springs, MI, specializes in manufacturing turbine airfoils and complex precision components for aerospace and industrial markets. The company utilizes advanced machining technologies including milling, turning, conventional and creep-feed grinding, and EDM, building on a foundation of precision and technological evolution for critical applications.

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Raybestos Powertrain

Crawfordsville, IN

Raybestos Powertrain manufactures premium American-made automatic transmission parts for both original equipment (OE) and aftermarket applications. Based in Crawfordsville, IN, the company specializes in friction clutch plates and other critical powertrain components, driven by OE standards.

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Regal Rexnord

Milwaukee, WI

Based in Milwaukee, WI, Regal Rexnord provides complete, end-to-end, and optimized electromechanical powertrains. The company specializes in integrated power transmission solutions, serving diverse applications across a wide range of industries. They deliver engineered systems designed for optimal performance and efficiency for industrial customers.

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Sigma Powertrain, Inc.

Livonia, MI

Based in Livonia, MI, Sigma Powertrain develops and manufactures electric transmission and powertrain technology. They produce the EMAX Electric Transmission, a modular solution for class 6-9 vehicles with patented all-electric clutches. The company offers complete electric powertrain systems and Electric Park & Hill Hold for commercial trucks.

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Sparkz Inc.

Sacramento, CA

Based in Sacramento, CA, Sparkz Inc. manufactures advanced Cathode Active Material (CAM) for nickel-free and cobalt-free lithium batteries. The company is enabling electrification by producing critical battery components in the United States for automotive, commercial, and energy storage solutions with its FeCAM™ product.

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Team C Performance Center

Bellflower, CA

Team C Performance Center, based in Bellflower, CA, operates a complete machine shop specializing in building performance engines and custom auto parts. The company offers a wide selection of powertrain components, including carburetors, camshafts, distributors, intake manifolds, and engine mounts. They serve the performance automotive market, providing both manufacturing capabilities and a range of aftermarket parts.

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Alcast Company

Alcast Company manufactures high-performance aluminum castings engineered for strength, precision, and thermal reliability. These specialized components are designed for powertrain systems, serving original equipment manufacturers (OEMs) and Tier 1 suppliers in various industrial sectors.

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Arrow Gear

Downers Grove, IL

Arrow Gear, based in Downers Grove, IL, manufactures precision custom and stock gears. Specializing in spiral bevel, straight bevel, and parallel axis gears, the company also provides heat treatment, superfinishing, and gearbox assembly. They serve as a direct supplier of powertrain components for industrial applications.

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Califabrication

Carmichael, CA

Based in Carmichael, CA, Califabrication specializes in custom offroad fabrication, manufacturing powertrain components like differentials, and performing chassis work. They provide custom stainless/aluminum fabrication and CNC plasma cutting services for a wide range of Toyota, Jeep, Ford, Chevy/GMC, Dodge Ram, and Lexus vehicles.

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CARDONE Industries

CARDONE Industries manufactures and remanufactures automotive powertrain components. They provide high-quality powertrain control modules, drivetrain, engine, fuel, air, and exhaust system parts. Offering both new and remanufactured products, the company ensures performance meeting or exceeding original equipment standards.

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Hayes

St. Louis, MO

Hayes, a division of CK Power Family of Companies, manufactures power transmission components for off-highway and industrial equipment. Specializing in couplings, bearing supported stub shafts, and engine housings, the company provides essential powertrain solutions. Based in St. Louis, MO, Hayes offers decades of manufacturing expertise.

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Cloyes Gear & Products, Inc.

Fort Smith, AR

Based in Fort Smith, AR, Cloyes Gear & Products, Inc. manufactures high-quality timing kits and engine components for the automotive industry. The company specializes in timing drive systems and accessory drive components, catering to OEM, high-performance, and heavy-duty applications with extensive manufacturing expertise.

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Cooper Machinery Services

Houston, TX

Based in Houston, TX, Cooper Machinery Services manufactures new turbochargers and compression components. As an OEM for Cooper-Bessemer and Enterprise engines, they also provide extensive after-sale services, parts, repairs, and upgrades for slow-speed and high-speed reciprocating engines and compressors.

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Cummins Inc.

Columbus, IN

Cummins Inc. manufactures a comprehensive range of diesel, natural gas, and alternative fuel engines. These power systems are developed with innovative technology to serve various off-highway and industrial applications. The company directly provides essential powertrain components.

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Dutchman Motorsports

Meridian, ID

Based in Meridian, ID, Dutchman Motorsports specializes in designing and manufacturing high-performance custom rear ends, alloy axle shafts, and related driveline components. They produce replacement axles, custom rear ends, Ford 9" 3rd members, and differential components for various automotive applications, primarily serving motorsports and performance markets.

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Exedy USA

Exedy USA manufactures high-quality powertrain components, specializing in various clutch and flywheel kits. They produce a range of products including Stage 1, Stage 2, Hyper Single, and OEM clutch kits with detailed specifications like disc diameter, spline count, and torque capacity. Exedy USA supplies parts for diverse vehicle manufacturers, serving the automotive industry.

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Formsprag Clutch

Warren, MI

Based in Warren, MI, Formsprag Clutch specializes in the design and manufacture of long-life overrunning clutches. With over 50 years of expertise, the company provides high-quality powertrain components for various industrial applications, ensuring reliable performance and durability.

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Gear Motions

Tonawanda, NY

Gear Motions is a US-based manufacturer specializing in custom cut and ground precision gears for OEMs worldwide. They produce helical, spur, pump, bevel, and worm gears, alongside sprockets, timing pulleys, shafts, and splines. Their facilities deliver quality powertrain components to meet demanding specifications for various applications.

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Goerend Transmission

Saint Lucas, IA

Based in Saint Lucas, IA, Goerend Transmission manufactures high-quality performance diesel torque converters and transmission parts. They offer components such as flexplates, shafts, rebuild kits, valve bodies, and internal transmission parts for Dodge, Ram, Chevrolet, GMC, and Ford vehicles.

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Holman Powertrain

Mount Laurel, NJ

Based in Mount Laurel, NJ, Holman Powertrain specializes in providing top-quality new and remanufactured engines, transmissions, and related components. Serving automotive brands like Ford and General Motors, this division delivers essential powertrain solutions. It operates within the larger Holman global automotive services organization, leveraging extensive expertise for comprehensive customer support.

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Inland Empire Driveline Service, Inc.

Ontario, CA

Inland Empire Driveline Service, Inc. based in Ontario, CA, manufactures custom driveshafts from steel, aluminum, and composite materials. They also provide center support bearings, yokes, and universal joints. The company offers SFI-certified driveshafts for competitive racing and stock replacement options for various classic and late-model vehicles.

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Industrial Powertrain Service & Supply Limited

Rockford, IL

Based in Rockford, IL, Industrial Powertrain Service & Supply specializes in industrial clutches, torque converters, speed increasers, gearboxes, and pump drives. They provide new and remanufactured parts, including power take-offs, and offer surface grinding services for industrial clutches. The company serves the oil, agricultural, mining, forestry, and municipal industries.

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JASPER

Jasper, IN

Based in Jasper, IN, JASPER remanufactures a comprehensive range of powertrain components. Their capabilities include gas and diesel engines, transmissions, differentials, and essential air and fuel components. They also specialize in remanufacturing marine engines and sterndrives, serving diverse automotive and marine applications.

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NeuMotors

San Diego, CA

Based in San Diego, CA, NeuMotors specializes in brushless motor and controller engineering and manufacturing. The company produces BLDC motors ranging from 50 watts to 50kW, offering both catalog products and custom solutions. Serving industrial, military, and aerospace sectors, NeuMotors designs and tests products in its ISO9001 certified US facility.

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Pacific Coast Fabrication

Monroe, WA

Based in Monroe, WA, Pacific Coast Fabrication operates as a custom automotive and industrial metal fabrication shop. The company specializes in creating bespoke metal components for a range of applications, serving both automotive and industrial sectors.

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PAI

Jurupa Valley, CA

Based in Jurupa Valley, CA, PAI manufactures and distributes quality service parts for the heavy-duty truck industry. The company leverages cutting-edge precision machinery and robotics to produce essential powertrain components, including transmissions, engine, and gearing parts. PAI has been manufacturing US-made components since 1973.

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Alliant Power

Alliant Power specializes in remanufacturing diesel engine parts, extending the lifespan of vital powertrain components. They focus on giving new life to critical engine elements like fuel injectors through expert reconditioning processes.

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PCM Engines

Chapin, SC

Based in Chapin, SC, PCM Engines designs and manufactures high-quality inboard watersports engines. With over 45 years of experience, the company produces robust engines utilizing the latest technologies, focusing on exceptional performance, reliability, and consumer enjoyment for various boat brands.

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R2 Quality Castings

Waukesha, WI

Based in Waukesha, WI, R2 Quality Castings specializes in manufacturing precision cast components for the automotive industry. The company produces high-quality parts essential for vehicle powertrain systems and other critical applications, utilizing professional casting processes to serve commercial and industrial clients.

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Transaxle Manufacturing of America

Rock Hill, SC

Based in Rock Hill, SC, Transaxle Manufacturing of America specializes in producing transaxles. These integrated transmission and rear axle components are engineered for small tractors and utility vehicles, contributing to the development of world-class powertrains.

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U.S. Axle, Inc.

U.S. Axle, Inc. is a Pottstown, PA-based manufacturer specializing in custom heavy equipment axles, shafts, and cylinders for OEM applications. They leverage engineering and integrated processes, including machining, induction hardening, and deep hole drilling. U.S. Axle serves diverse markets such as agriculture, construction, heavy trucks, rail, and downhole drilling.

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U.S. Battery Manufacturing Co.

Augusta, GA

U.S. Battery Manufacturing Co. specializes in producing a comprehensive range of deep cycle batteries for various applications, including golf carts, marine vessels, recreational vehicles, and industrial equipment. These high-performance batteries serve as essential components within electric powertrains and motive power systems, providing reliable energy solutions for diverse commercial and industrial needs.

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Ampere EV

Ampere EV develops and manufactures complete electric powertrains, featuring their turnkey Atom Drive System, for electric vehicles. Built in-house, these pre-configured systems are ready for installation, providing OEM-level solutions for EV builders. The company engineers, tests, and assembles its powertrain systems in Georgia, USA.

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Detroit Diesel Corporation

Detroit Diesel Corporation manufactures heavy-duty diesel engines, automated manual transmissions, and axles for the commercial transportation industry. The company also offers advanced safety systems and eMobility solutions. Their components are designed for peak performance in Freightliner and Western Star trucks.

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Gearbox Group

Gearbox Group manufactures OE and aftermarket automotive components. The company produces blanking, paper, and friction parts for powertrain systems. It operates under well-known brands such as Raybestos Powertrain, Steel Parts, and Allomatic, supplying critical components to the automotive industry.

No contact on file

HEICO Corporation

Hollywood, FL

HEICO Corporation, through its Flight Support Group, designs, manufactures, and repairs FAA-PMA approved engine and aircraft component parts. The company supplies critical aerospace and defense products for commercial and military aviation powertrains, leveraging advanced fabrication capabilities.

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ITW Automotive

Richton Park, IL

ITW Automotive, based in Richton Park, IL, engineers and manufactures highly specialized powertrain components, fastening, and assembly solutions for the automotive industry. Leveraging 100 years of experience, they collaborate with customers to develop innovative, tailored products, addressing current challenges and supporting a sustainable automotive future.

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OEM Powertrain USA

OEM Powertrain USA specializes in providing a diverse range of powertrain components. Their inventory includes remanufactured, new, crate, and rebuilt options for major automotive brands such as Ford, Chevrolet, GMC, Chrysler, Dodge, and Jeep.

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PHINIA Inc.

PHINIA Inc. specializes in manufacturing premium fuel systems, electrical systems, and aftermarket parts for various applications. The company focuses on developing fuel-efficient portfolios and technologies supporting alternative fuels. They serve light-duty vehicle and off-highway customers, committed to advancing sustainability in powertrain components.

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GM Powered Solutions

GM Powered Solutions provides engines, transmissions, fuel cell, and electrification solutions. The company specializes in advanced propulsion technology, offering various engine products like the Duramax Turbo Diesel, alongside electric and hybrid options for diverse applications.

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Schaeffler Group USA Inc.

Fort Mill, SC

Schaeffler Group USA Inc. manufactures and supplies advanced powertrain and chassis components for the automotive industry. It develops groundbreaking products for vehicles with internal combustion engines, hybrid powertrains, and electric vehicles, focusing on solutions for sustainable mobility and energy efficiency within its US facilities.

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Tenneco

Tenneco designs, develops, and manufactures original equipment components and technologies for powertrain systems, serving the transportation industry. The company operates as a global manufacturer and distributor, focusing on creating advanced solutions for engine designers and setting new industry standards through continuous improvement and customer-centric approaches.

No contact on file

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How to Choose a Company

  • For automotive applications, demand IATF 16949 certification with a clear scope that covers the specific manufacturing processes (e.g., machining, casting, assembly) required for your powertrain component, verifying their quality management system meets industry-specific requirements.
  • Verify suppliers possess the specific advanced manufacturing equipment needed, such as gear hobbing and grinding machines for precise transmission gears, or high-pressure die casting capabilities for complex motor housings, ensuring they can achieve required surface finishes and tolerances.
  • Assess their capability for Production Part Approval Process (PPAP) submissions, specifically scrutinizing their control plans, process FMEAs, and gage R&R studies for critical-to-quality (CTQ) features like bore concentricity or surface roughness on sealing faces.
  • Beware of suppliers who downplay the importance of material traceability beyond the raw stock certification. For powertrain components, full traceability through heat treat batches, specific forging runs, and even individual machining operations is often non-negotiable for warranty and safety-critical parts.
  • Evaluate their Advanced Product Quality Planning (APQP) and Design for Manufacturability (DFM) capabilities specifically for powertrain applications, checking if they can provide early input on casting designs for optimal material flow or suggest alternative machining strategies to reduce NVH.

Frequently Asked Questions

What specific functional safety standards should I look for in suppliers manufacturing EV inverter or battery management system (BMS) components?

For EV power electronics, your supplier must demonstrate adherence to ISO 26262 for functional safety, often requiring specific safety lifecycle processes, fault tolerance analysis, and robust verification & validation activities. Look for evidence of an established safety culture and appropriate safety case documentation.

How critical is Noise, Vibration, and Harshness (NVH) expertise when selecting a supplier for rotating powertrain components like shafts or gear sets?

NVH expertise is extremely critical. Suppliers should understand how component tolerances, material choices, and manufacturing processes (e.g., surface finish, runout, balancing) directly impact NVH. Request their capabilities for vibration analysis, dynamic balancing, and willingness to participate in joint NVH mitigation efforts during design and prototyping.

What are the common pitfalls in managing tooling ownership and maintenance with powertrain component manufacturers?

A common pitfall is unclear documentation of tooling ownership, maintenance schedules, and replacement costs within the supplier contract. Ensure your agreement clearly defines who owns the dies, molds, or fixtures, who is responsible for their preventive maintenance and repair (PM&R), and how end-of-life replacement is funded, especially for high-volume programs with long product lifecycles.

When sourcing complex powertrain castings (e.g., engine blocks, transmission housings), what should I prioritize beyond basic casting capabilities?

Beyond basic casting, prioritize a supplier's internal capabilities for non-destructive testing (NDT) such as X-ray or ultrasonic inspection for internal defects, and a robust metrology lab with CMMs capable of scanning complex geometries. Also, assess their experience with difficult-to-cast alloys and their ability to manage secondary processes like machining, heat treatment, and leak testing in-house or through a tightly controlled network.

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