Want to email decision-makers? Need a specific city or state?
Find your next customers, fetch contacts, and send outreach — all in one place.
Last updated: January 2026
This directory lists 56 suspension component manufacturers across the United States, from high-volume OEM suppliers specializing in steel coil springs to niche fabricators focused on custom composite leaf springs and precision machined control arms.
Buyers in this category are often solving critical performance challenges, whether it's achieving specific ride comfort profiles, optimizing handling dynamics for performance vehicles, or ensuring the long-term fatigue life of safety-critical components under varying load cases. Manufacturers help realize these goals through precise material selection, advanced forming processes, and rigorous testing of NVH (Noise, Vibration, Harshness) characteristics.
Supplier types in this space vary significantly. You'll find large Tier 1 automotive suppliers who offer integrated design and manufacturing for complete suspension modules, specialized component manufacturers focusing solely on items like precision-machined spindles or cast aluminum control arms, and smaller, agile shops capable of prototyping complex components or producing low-volume custom solutions for aftermarket or defense applications.
When approaching these manufacturers, buyers should arrive with a clear definition of performance requirements, including desired spring rates, damping curves, target vehicle weight, wheel travel envelopes, and expected duty cycles. Suppliers, in turn, often expect detailed CAD models, material specifications, and a DVP&R (Design Verification Plan and Report) outlining required testing and validation protocols.
A notable trend in suspension component manufacturing is the increasing demand for lightweighting and active/adaptive systems. The push towards electrification and autonomous vehicles is driving innovation in materials, such as composites and advanced high-strength steels, and sophisticated electronic controls that allow for dynamic adjustments to damping characteristics and ride height, requiring manufacturers to integrate electronics and precision assembly.
Verified emails, direct phone numbers, company website URLs, and descriptions — downloadable as a CSV you can load straight into your CRM.
Secure checkout via Stripe. No account required.
Want your company featured at the top of this page?
Sponsored listings are $49/month — top placement on this directory, with your contact details shown to every visitor.
56 companies nationwide
Rock Slayer Off-Road is an automotive suspension manufacturing company based in California. It specializes in producing high-performance suspension systems, serving the automotive industry with its custom-engineered components. The company focuses on manufacturing durable and advanced suspension solutions.
Based in Farmington Hills, MI, ACE Controls Inc. designs and manufactures industrial shock absorbers, gas springs, rotary dampers, hydraulic feed controls, and air springs. These components are utilized for damping, deceleration, vibration isolation, and precise motion control in various industrial and automation applications.
Based in Rancho Cordova, CA, BC Fabrication manufactures specialized air suspension components and accessories for custom automotive applications. They produce specific parts like front shock relocator kits and wishbones, primarily for vintage vehicles such as the 1958-1964 Chevrolet Impala.
Based in Coldwater, MI, BDS Suspension designs, engineers, and manufactures a wide range of premium suspension components. Their Made in USA product line includes lift kits, control arms, coilovers, steering stabilizers, and traction bars for high-performance trucks and Jeeps.
BMR Suspension, based in Tampa, FL, manufactures chassis, suspension, and drivetrain products for performance automotive enthusiasts. Specializing in components for street performance, drag racing, and handling, the company performs in-house cutting, bending, welding, and powdercoating using American-made steel. Products are extensively tested on project vehicles.
Based in Cordova, CA, BuiltRight 4x4 provides custom fabrication for off-road vehicles. They offer specialized custom suspension systems, roll cages, and chassis modifications. These solutions are tailored for rugged terrain and demanding off-road applications, focusing on bespoke component manufacturing.
Based in Huntington Beach, CA, Camburg Engineering designs and manufactures high-performance off-road suspension systems and components. They produce a wide range of parts, including upper control arms and long-travel kits for trucks and off-road vehicles, catering to demanding performance applications.
Based in Bowling Green, KY, Classic Performance Products Inc. (CPP) manufactures premium aftermarket suspension components, brakes, and steering kits. They specialize in upgrading classic cars and trucks, providing quality and reliable solutions designed to enhance vehicle performance and ride for enthusiasts and restoration professionals.
Based in Hamden, CT, Clayton Off Road, Inc. designs, fabricates, and manufactures durable Jeep Suspension Systems. The company specializes in high-performance suspensions for demanding off-road conditions and street use, offering 100% made-in-the-USA parts. Since 2001, Clayton Off Road has provided quality suspension components with a lifetime warranty.
Based in Moreno Valley, CA, California Supertrucks Inc. operating as CST Performance Suspension, specializes in manufacturing high-quality suspension components. They produce leveling kits, 2WD lift spindle kits, 4WD lift kits, Mid-Travel UCA kits, and shocks. The company focuses on delivering durable and performance-oriented suspension solutions for various vehicle applications.
Based in Nixa, MO, Cush Suspensions specializes in manufacturing OEM and aftermarket suspension components for trucks and trailers. The company focuses on enhancing ride quality and performance for various commercial vehicle applications.
Based in Vista, CA, Custom Tube Works specializes in the design and manufacturing of custom suspension components. They build solutions tailored to specific vehicle requirements, ensuring optimal performance across diverse terrains. The company provides high-quality components for enhanced vehicle functionality.
Based in San Diego, CA, Dirt King manufactures advanced suspension systems and components for various truck and SUV makes and models. The company specializes in producing high-performance off-road suspension parts, including upper control arms and shocks, for long and mid-travel builds.
Based in Gardena, CA, DJM Suspension manufactures premium American-made lowering kits and suspension components. The company has been providing specialized solutions for a wide range of vehicles, including classic and modern trucks and cars, since the early 1970s, focusing on the automotive aftermarket.
Based in Deerfield Beach, FL, Dobinsons USA specializes in the manufacturing of high-quality leaf and coil springs. The company also supplies a comprehensive range of suspension components for various vehicle applications. They focus on delivering durable shocks, springs, and related parts to enhance performance in the automotive and off-road industries.
Based in Houston, TX, Draco Spring Mfg. Co. specializes in designing and manufacturing custom springs, wire forms, and stampings. They offer hot and cold coiling capabilities for diverse industries, including auto racing and motorcycle suspensions, medical devices, military, aerospace, and oil fields.
Based in Detroit, MI, EATON Detroit Spring, Inc. manufactures custom and replacement leaf and coil springs for classic and modern vehicles. They produce components using original blueprints, maintaining American icons since 1937.
EVO Manufacturing designs and produces high-performance off-road suspension systems and lift kits. Specializing in Jeep Wrangler and Gladiator vehicles, the company provides components and accessories to enhance vehicle performance for demanding off-road conditions. Their products are engineered for superior durability.
Based in San Bernardino, CA, Global West Suspension Components Inc. manufactures high-performance suspension parts for muscle cars. They produce control arms, springs, bushings, sway bars, subframes, leaf springs, and coilover kits, along with power steering conversions and negative roll packages for classic vehicles.
Rancho Performance Suspension & Shocks manufactures a wide range of performance suspension components for trucks, SUVs, and Jeeps. They offer control arm kits, QuickLIFT suspension strut and coil spring assemblies, and various suspension shock absorbers. Rancho specializes in advanced suspension and shock technologies, enabling vehicles to tackle diverse terrains.
Based in Lake Zurich, IL, Heidts Suspension Systems manufactures a wide range of custom suspension components and complete kits for various vehicles. The company provides diverse fitments, colors, and sizes, allowing customers to customize their suspension solutions for optimal performance and aesthetics.
Based in Loomis, CA, Hot Metal Fab specializes in creating custom suspension systems tailored to specific vehicle demands. They also manufacture a range of rugged overland vehicle accessories, including modular bed racks, trail-proven armor, and rock sliders for various truck models.
Based in Springfield, MO, Hutchens Industries specializes in the design and manufacturing of spring suspensions and sliding subframes. The company provides essential suspension components primarily for the trailer industry, utilizing its own facilities and workforce to produce high-quality solutions.
Based in Riverside, CA, ICON Vehicle Dynamics engineers and manufactures premium aftermarket suspension systems and components. They specialize in enhancing the control and capability of trucks, Jeeps, and SUVs for both everyday comfort and rugged off-road performance.
Based in Escondido, CA, JD Fabrication specializes in custom fabrication for off-road vehicles, manufacturing unique bolt-on long-travel suspension kits and custom 4-link systems. With 20+ years of experience, JD Fab also provides high-end custom builds, engine cages, and race prep services.
Based in Sioux Center, IA, Link Manufacturing, Ltd. designs and produces cab suspensions, heavy-duty truck suspensions, and lift axles. The company offers OE engineering support for vehicle manufacturers, providing advanced suspension solutions for the heavy-duty transportation sector.
Based in Fresno, CA, McGaughys is a manufacturer specializing in a diverse range of suspension products. The company produces components for various automotive applications, providing solutions for vehicle suspension systems.
MW Components manufactures custom and stock metal components, including precision springs, fasteners, bellows, and shims. Operating from over 20 US-based facilities, the company offers extensive custom capabilities and over 40,000 in-stock designs, providing high-quality parts for diverse industrial applications.
Based in Mentone, IN, Mid-West Spring and Stamping manufactures precision custom industrial springs, stampings, and wire forms. They specialize in low-to-medium-volume runs, including suspension springs and components. The company offers custom engineering services and operates under ISO 9001:2015 standards for diverse industrial applications.
Based in Interlochen, MI, Offroad Anonymous manufactures specialized fabrication parts for off-road suspension systems. They provide essential components including coilover tabs, 3-link and 4-link brackets, adjustable Panhard brackets, and Dana 60 axle trusses. Their products cater to enthusiasts and custom fabricators, supporting robust suspension builds and modifications.
Based in Tucson, AZ, PMF Suspension is a family-owned manufacturer specializing in heavy-duty suspension components, including diff covers. The company designs and produces 99% of its parts in-house in America, continuously updating products based on customer feedback.
Based in Stockton, CA, Rare Parts Inc. specializes in manufacturing steering and suspension components for classic cars and 4x4 trucks. The company provides a range of readily available parts and offers custom fabrication services to build specific components not otherwise found.
Based in Mooresville, NC, RE Suspension specializes in advanced auto racing suspension technology. The company provides high-performance shocks, springs, and bump stops. Serving asphalt, road, and drag racing, they offer tailored suspension components designed for the demanding requirements of professional motorsport.
Reyco Granning Suspensions is a US-based manufacturer specializing in designing and producing high-performance suspension solutions. With over a century of experience, the company provides reliable suspension systems for a diverse range of commercial and specialty vehicles, including trucks, trailers, and buses.
Based in Loomis, CA, Rock and Road Performance specializes in custom metal fabrication for offroad and Ultra4 vehicles. They manufacture suspension components, chassis, and cages. Products include Jeep TJ cage kits, XJ suspension systems, shock parts, and steering kits, also offering DIY shock service.
Rusty's Off-Road is a manufacturer specializing in innovative Jeep-specific suspension components for the 4x4 industry. The company performs in-house manufacturing and R&D for products such as control arm frame mounts, steering systems, and 4-link conversion kits.
Sacramento Spring Inc. specializes in the onsite manufacturing, repair, and modification of leaf springs and U-bolts. As the only full temper leaf spring manufacturer in their valley, they serve diverse applications including automotive, 4x4, RVs, and heavy trucks, utilizing high-quality, USA-made materials.
Based in Dripping Springs, TX, SPL Parts designs and manufactures high-performance suspension components for street and track vehicles. Their product line includes camber arms, lower control arms, toe links, and tie rod ends. Serving various brands like BMW, Ford, Toyota, and Nissan, the company focuses on sharpening suspension response and providing precise adjustments.
Based in Santa Rosa, CA, Spring Works provides a wide range of suspension components. They specialize in leaf springs for semi-trucks, cars, RVs, and various trailers, alongside helper springs and OEM coil springs, serving automotive and heavy-duty vehicle markets.
Based in El Cajon, CA, Suspension Development Group manufactures race-tested suspension and spring kits for Polaris and Can-Am vehicles. The company builds performance-focused components designed to enhance ride smoothness and capability across diverse terrains, from dunes to trails, contributing to racing success.
Based in Lake Elsinore, CA, Suspension Direct Inc. manufactures suspension parts for Motocross and UTV applications. The company specializes in fabrication of suspension components and sells related brands like WP, Showa, KYB, and Walker Evans.
Based in Colton, CA, The Spring Store specializes in manufacturing custom springs for various applications. The company provides technical resources and information on different spring types, supporting industries that require precision-engineered components, including those for suspension systems.
Based in Ontario, CA, Total Cost Involved Engineering, Inc. manufactures high-quality suspension kits and custom chassis. All products are made in America at their 32,000-square-foot facility, providing direct manufacturing for automotive suspension components.
Based in DuBois, PA, Triangle Suspension Systems, Inc. designs and manufactures heavy, medium, and light-duty springs and comprehensive suspension systems. With nearly 100 years of US manufacturing experience, the company provides quality spring, suspension, and air spring products for diverse OEM applications.
Based in Beloit, WI, Trick Chassis specializes in custom drag racing auto part fabrication. The company provides high-end suspension packages and various other automotive components designed for a wide range of vehicles, focusing on performance applications.
Based in San Bernardino, CA, Universal Air manufactures and distributes air suspension systems and components. With over 25 years of experience, the company specializes in air spring manufacturing. They offer patented products including Aeroleaf bolt-on systems, air bags, and air tanks for custom applications and OEM development.
Based in Hugo, MN, Western Spring Manufacturing is an ISO 9001:2015 certified custom spring and wire form manufacturer. They produce precision coil springs, including compression, extension, torsion, die, and counterbalance types. The company also offers flat springs and medical coils.
Based in Mooresville, NC, Bilstein manufactures high-quality shock absorbers and comprehensive suspension systems. The company specializes in producing advanced components for various automotive applications, serving both original equipment manufacturers and the aftermarket. They are known for their innovative engineering and durable suspension solutions.
JCMSTECH, Inc. based in St. Louis, MO, manufactures custom metal stampings and fabricated components. Offering stamping, welding, and assembly capabilities, they serve the Automotive and Heavy Truck industries. JCMSTECH is a direct provider of manufacturing services for suspension components and related metal parts.
FCS Automotive International designs and produces various suspension components, including shocks, struts, and lift supports. This vertically integrated manufacturer serves OE companies and the aftermarket, offering heavy-duty fleet suspension solutions. An in-house engineering team ensures product quality and extensive application coverage.
Based in Canton, OH, Hendrickson manufactures and supplies medium and heavy-duty mechanical, elastomeric, and air suspensions. They also provide integrated axle and brake systems, auxiliary lift axle systems, parabolic and multi-leaf springs, and stabilizers. The company serves the global commercial transportation industry.
Based in Riverside, CA, Hoppo's Custom Suspension Works specializes in manufacturing and providing hydraulic and air ride suspension components for lowriders. They offer custom pumps, pump components, reinforcement kits, plates, and complete frame reinforcement kits, along with other specialized parts and expertise for custom suspension builds.
Based in St. Louis, MO, Moog Parts manufactures a comprehensive range of automotive suspension components. The company provides high-quality, reliable parts designed for a smooth and safe ride. Trusted by professionals and drivers, Moog's products enhance vehicle performance and durability.
Based in Lakeville, MN, QA1 engineers and manufactures high-quality, performance suspension systems for the automotive aftermarket. The company specializes in developing advanced suspension components for muscle cars, classic trucks, and various race cars, serving enthusiasts seeking superior vehicle dynamics and control.
Watson & Chalin Mfg Inc. manufactures lift axles, axles, and truck and trailer suspension systems for the commercial vehicle industry. Based in McKinney, TX, the company specializes in providing durable suspension components and systems.
Renton Coil Spring specializes in manufacturing precision compression, extension, and torsion springs, alongside flat form clips and wire forms. They supply critical aerospace components for major aircraft models, including the Boeing 737, 767, 777, and 787.
Get all 56 companies with 49 emails, 53 phone numbers, and 56 website links
One-time $19.99 — no subscription, includes CSV download.
| Type | Best For | Typical MOQ |
|---|---|---|
| OEM Tier 1 Integrated Supplier | Large-volume automotive programs requiring full system design, extensive validation, and integrated module assembly. Focus on high repeatability and stringent cost control. | 100,000+ units annually |
| Aftermarket Performance Specialist | Performance tuning, motorsport, or specific vehicle platforms requiring enhanced *damping characteristics*, adjustable components, or specialized materials for improved handling and reduced *NVH*. | 500 - 10,000 units annually |
| Custom Fabrication/Small Batch Manufacturer | Prototyping, low-volume specialty vehicles (e.g., defense, off-road, classic restoration), or custom-designed components where unique *kinematics* or complex geometries are paramount. High design flexibility. | 1 - 500 units annually |
Cold-wound springs are typically made from pre-hardened wire and are suitable for smaller diameters, higher precision, and lighter loads, offering tighter tolerances and better surface finishes. Hot-wound springs are formed from heated steel bar, then heat-treated, making them ideal for larger diameters, heavier loads, and applications where high strength and long fatigue life are critical, such as truck suspensions or heavy industrial equipment. Your choice depends on spring diameter, load, precision requirements, and cost targets.
Validation typically involves specialized dynamometers (dynos) that can simulate various velocities and displacements, measuring force vs. velocity for both compression and rebound. This produces damping curves that illustrate the shock absorber's performance across its operating range. High-end manufacturers also utilize vehicle-in-the-loop or shaker rig testing to evaluate component interaction and NVH performance under simulated road conditions.
Beyond material composition and durometer, crucial tests for elastomeric bushings include dynamic stiffness, static stiffness (axial, radial, conical), creep (deformation under sustained load), compression set (permanent deformation after compression), and environmental resistance (ozone, oil, temperature). These directly impact NVH, steering feel, and overall suspension compliance over time, and manufacturers should be able to provide data specific to these parameters.
For control arms, DFM discussions should center on optimizing geometries for casting, forging, or stamping processes to minimize material usage, tooling costs, and post-processing. Key aspects include draft angles, wall thickness consistency (for castings), flash removal (forgings), and minimizing stress concentrators that could lead to premature fatigue failure. Additionally, discuss how mounting points and integrated bushings or ball joints can be designed for efficient assembly and long-term serviceability without compromising kinematics.