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Automotive Hose Manufacturers

Last updated: January 2026

This directory lists 71 automotive hose manufacturers across the United States, from specialists in high-pressure hydraulic lines for heavy-duty trucks to precision-formed coolant hoses for passenger EVs.

Buyers are solving critical design challenges, such as mitigating escalating warranty claims stemming from insufficient burst pressure resistance in fuel lines, or redesigning legacy fluid transfer systems for higher chemical resistance to new biofuels and next-generation coolants. They also seek to eliminate costly assembly line delays caused by inconsistent crimp fitting quality and ensure stringent adherence to specific performance metrics like permeation rates across varied operational temperatures.

Suppliers in this space range from large, vertically integrated manufacturers boasting in-house material compounding, extrusion, and assembly capabilities for high-volume OEM programs, to highly specialized fabricators focusing on custom, low-volume assemblies, complex routing, or niche applications like performance racing hoses and meticulously reproduced vintage vehicle lines.

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Company Directory

71 companies nationwide

Absolute Custom Extrusions, Inc.

Milwaukee, WI

Absolute Custom Extrusions, Inc. (ACE), based in Milwaukee, WI, specializes in custom plastic tubing and profiles through extrusion. An ISO 9001:2015 certified company with over 35 years of experience, ACE serves diverse sectors, including automotive, delivering plastic extrusions engineered to strict material requirements and tight tolerances.

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AGS Company

Muskegon, MI

Based in Muskegon, MI, AGS Company manufactures pre-bent fuel line kits tailored for cars, trucks, and SUVs. They specialize in producing application-specific fuel lines that facilitate quick and easy replacement. The company focuses on providing precise, ready-to-install automotive hose solutions for various vehicle makes and models.

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Air Components

Mesa, AZ

Based in Mesa, AZ, Air Components specializes in the manufacturing and repair of automotive AC, power steering, hydraulic, and high-pressure air hoses. Established in 1984, the company provides custom hose solutions for various automotive applications.

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Ames Rubber Manufacturing

Los Angeles, CA

Ames Rubber Manufacturing, based in Los Angeles, CA, is an experienced manufacturer of custom rubber products. They provide molded, extruded, die-cut, and lathe-cut rubber gaskets, seals, and components, utilizing extensive extrusion capabilities to serve various industrial needs for cost-effective, reliable solutions.

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RaceFlux

RaceFlux manufactures custom hose assemblies for various fluid control applications. Each hose assembly is built in-house to exact specifications, providing tailored solutions for client needs. They specialize in custom fabrication for demanding fluid system requirements.

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ATE

ATE designs and produces automotive brake hoses engineered to withstand high mechanical loads and permanent pressure. The company also offers a comprehensive range of hydraulic parts, clutch components, brake pads, and brake fluids for various vehicle requirements. Based in Allentown, PA, ATE serves the automotive aftermarket.

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Barstow Industrial

Barstow, CA

Based in Barstow, CA, Barstow Industrial specializes in automotive hose manufacturing and assembly. They provide essential products including brake lines, AC hoses, fuel and transmission hoses, and air brake hoses with fittings. The company is a certified Cal Trans Small Business.

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BrakeQuip, LLC

Muskegon, MI

Based in Muskegon, MI, BrakeQuip, LLC specializes in manufacturing high-quality, custom automotive brake, fuel, and clutch line solutions. They offer an extensive range of over 1000 fittings and accessories, along with a custom hose assembly program. The company also provides reliable power steering tubing for various automotive applications.

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Classic Tube

Lancaster, NY

Based in Lancaster, NY, Classic Tube manufactures pre-bent automotive lines, including brake, fuel, and transmission components. They produce custom-made rigid tubes and flexible hoses to OEM specifications using advanced CNC bending technology and non-contact laser scanning for various vehicles.

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Coi Rubber Products

Diamond Bar, CA

Coi Rubber Products, Inc. specializes in custom rubber and plastic product manufacturing, utilizing techniques such as molding, extrusion, and rubber-to-metal bonding. Serving the automotive, industrial, HVAC, and appliance industries, they produce custom rubber and plastic components tailored to client specifications from their Diamond Bar, CA facility.

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Dakota Hose and Fittings

Fargo, ND

Based in Fargo, ND, Dakota Hose and Fittings manufactures metric and imperial hose assemblies. The company provides custom-engineered solutions for automotive applications, including garage exhaust, heater, and impact tool air hoses, supplying OEM and MRO customers since 1972.

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DELFINGEN

Houston, TX

Based in Houston, TX, DELFINGEN designs and manufactures advanced tubing and systems for automotive OEMs and suppliers. These products are engineered for conveying, filling, draining, transferring, and distributing fluids, covering a wide range of automotive applications from the design stage.

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Diebolt & Company

Old Lyme, CT

Based in Old Lyme, CT, Diebolt & Company specializes in designing and manufacturing USA-made specialty hose products and assemblies. Since 1991, they have developed custom solutions, including Teflon™ fluoropolymer and electrically heated hoses, for various applications, holding U.S. patents for their innovative designs.

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Dynamic Tube, Inc.

Maquoketa, IA

Based in Maquoketa, IA, Dynamic Tube, Inc. specializes in OEM steel tubing and pipe fabrications. They provide expert tube bending services and manufacture high-pressure diesel fuel injection lines for the automotive industry. Serving industrial OEMs across numerous US states, they ensure quality fabrication with ISO certification.

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Dyme Performance Systems Inc.

Walnut, CA

Based in Walnut, CA, Dyme Performance Systems Inc. manufactures high-performance fluid transfer systems for motorsport and automotive applications. They specialize in PTFE and CPE rubber hoses, engineered for extreme reliability with up to 10,000 PSI burst resistance. The company offers quick-release fittings resistant to various common automotive fluids.

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Federal Hose

Painesville, OH

Based in Painesville, OH, Federal Hose manufactures metal, hydraulic, and silicone hoses for various industrial applications. With over a century of experience, the company serves the transportation, manufacturing, and energy sectors, providing solutions from its Ohio facilities and distribution centers.

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Fragola Performance Systems

Fragola Performance Systems manufactures high-quality automotive hoses, hose ends, and related performance components. Based in Connecticut, the family-run company produces 99% of its parts in-house, ensuring American-made reliability for diverse automotive applications.

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Gates

Denver, CO

Gates, a global leader in power transmission and fluid power, manufactures tailor-made coolant hoses for industrial, commercial, residential, and automotive applications. Driven by materials science and over a century of experience, they engineer products to continually exceed expectations, ensuring engines run better.

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Hanna Rubber Company

Kansas City, MO

Hanna Rubber Company, based in Kansas City, MO, specializes in designing and assembling industrial hose systems and molded hoses. Since 1925, they have provided rubber products for automotive, industrial, construction, military, and government customers, offering custom rubber part solutions and expertise.

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Harrison Hose & Tubing, Inc.

Trenton, NJ

Based in Trenton, NJ, Harrison Hose & Tubing, Inc. manufactures and distributes flexible plastic and rubber tubing and reinforced braided hose. The company provides hosing and tubing solutions for diverse sectors, including automotive, agricultural, industrial, medical, and food and beverage industries, meeting various regulatory approvals.

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Hose Assemblies

Mishawaka, IN

Based in Mishawaka, IN, Hose Assemblies manufactures high-quality rubber supply hoses for the automotive and commercial sectors. With nearly 75 years of experience, they also produce hoses for cleaning/sanitation, lawn/garden, and recreational vehicles. They offer standard and custom lengths, including fittings, to OEMs and distributors.

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Hose Specialties

Santee, CA

Hose Specialties, based in Santee, CA, fabricates custom hoses and plumbing systems for automotive applications like street rods, race cars, and 4x4s. They offer in-house installation, power steering line repair, and stock performance steel braided hoses and AN fittings.

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Inline Tube

Shelby Twp, MI

Based in Shelby Twp, MI, Inline Tube is a manufacturer specializing in automotive preformed replacement brake lines and fuel lines. The company produces a wide range of custom-fit fluid transfer solutions for various vehicle makes and models, primarily serving the automotive restoration and repair markets.

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Kongsberg Automotive Fluid Transfer Systems

Suffield, CT

Based in Suffield, CT, Kongsberg Automotive Fluid Transfer Systems manufactures PTFE hoses for various fluid transfer solutions. As a subsidiary of Kongsberg Automotive, the company provides fluid assemblies and other components for driver and motion control systems, serving industrial and automotive customers.

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Kuriyama of America, Inc.

Schaumburg, IL

Based in Schaumburg, IL, Kuriyama of America, Inc. manufactures a comprehensive range of thermoplastic, rubber, and metal hose products. They also provide accessories like couplings and fittings. The company serves diverse industrial and commercial applications through its subsidiaries, including the Accuflex and Hose Tec brands.

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Lusida Rubber Products

Rosemead, CA

Based in Rosemead, CA, Lusida Rubber Products is a custom manufacturer specializing in a diverse range of hoses. They provide durable silicone, radiator, shaped, hydraulic, and air brake hoses for automotive, heavy trucking, and industrial applications, built to specific customer specifications and needs.

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Moreland Hose

Hempstead, NY

Moreland Hose and Belting Corp. based on Long Island, NY, specializes in crafting bespoke hose assemblies and custom hose solutions. With over 50 years of experience, the company provides custom AC hoses, power steering hoses, and belting. They serve the automotive, industrial, and marine sectors across the Tri-State area of New York, New Jersey, and Connecticut.

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Dayco Aftermarket North America

Birmingham, MI

Dayco Aftermarket North America, based in Birmingham, MI, specializes in manufacturing a comprehensive line of automotive coolant hoses. Their products are engineered to meet original equipment (OE) specifications and all relevant SAE standards, providing reliable solutions for the aftermarket.

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Pegasus Auto Racing Supplies

Pegasus Auto Racing Supplies, an employee-owned company, manufactures custom automotive hoses. As a Goodridge Factory Authorized G-Tech Technical Center, they produce custom brake and oil hoses to client specifications. They also offer multi-ply reinforced silicone coolant and intake hoses designed for racing applications.

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Plews & Edelmann

Dixon, IL

Based in Dixon, IL, Plews & Edelmann manufactures a total solution for power steering components. They produce high-performance power steering hoses, power steering coolers, and turbocharger oil lines. The company emphasizes its North American supply chain and manufacturing facilities for automotive applications.

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ProPulse

Peosta, IA

Based in Peosta, IA, ProPulse is a U.S. manufacturer providing custom OEM hose solutions for high-pressure cleaning and hydraulic industries. They offer superior quality hose with engineering and design expertise, backed by ISO 9001:2015 certification and full PPAP capabilities for diverse applications.

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Premier Rubber and Supply

Portland, OR

Based in Portland, OR, Premier Rubber and Supply specializes in the custom manufacturing of rubber hoses and metal tubing solutions. They provide precision-engineered products designed to meet specific client needs across various industrial applications.

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Racetronix

Fortville, IN

Based in Fortville, IN, Racetronix manufactures high-performance automotive fuel system components. The company specializes in PTFE (Teflon) hoses, including stainless steel braided options, for various automotive applications. Their product line also features in-line pumps, fuel rails, and bulkhead connector assemblies, catering to the automotive aftermarket.

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Redhorse Performance

Bridgeview, IL

Based in Bridgeview, IL, Redhorse Performance specializes in AN brake line parts, brake hoses, and brake adapter fittings. They provide components for serious automotive builds, focusing on comprehensive brake line solutions. The company offers a range of high-performance brake hoses and associated fittings designed for various vehicle applications.

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SantopSeal Corporation

Akron, OH

Based in Akron, OH, SantopSeal Corporation specializes in manufacturing high-performance EPDM and silicone hoses. They provide custom engineering and production of various hose types and sealing solutions, serving automotive, industrial, and marine sectors with their own state-of-the-art facility.

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Silicone Hose

Gardena, CA

Based in Gardena, CA, Silicone Hose specializes in high-performance silicone hoses for diverse automotive applications. They offer an extensive variety of products, including radiator, vacuum, and SAEJ20 compliant multi-ply silicone hoses, as well as Aramid CAC hoses. The company also supplies stainless steel T-bolt hose clamps.

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S & K Hoses and Fittings

Simi Valley, CA

Based in Simi Valley, CA, S & K Hoses and Fittings provides precision and custom hose and fitting solutions for industrial, performance, marine, and automotive applications. They specialize in reliable fluid transfer, offering custom-made hoses and specific products like automotive brake and clutch hoses.

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Southern Hydraulics, LLC

Kissimmee, FL

Based in Kissimmee, FL, Southern Hydraulics, LLC specializes in manufacturing hydraulic hoses in-house for custom applications. The company provides DOT-certified brake line manufacturing, custom hard-line fabrication, and comprehensive brake line repairs and replacements. They serve the hydraulic needs of Central Florida's hydraulics industry with a focus on custom hose solutions.

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Spiegler USA

Dayton, OH

Spiegler USA, based in Dayton, OH, designs and manufactures high-performance stainless steel braided brake lines. The company develops these crucial automotive hose components in-house, focusing on quality materials to provide superior stopping power. Serving the motorcycle and powersports sectors, Spiegler produces complete brake line kits.

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SSTubes

Wadsworth, OH

Based in Wadsworth, OH, SSTubes specializes in manufacturing automotive brake, fuel, and transmission lines, including flexible fuel lines. The company provides complete brake system replacement kits, offering pre-bent parts designed for easy installation. They also offer custom tube bending services for mild steel and stainless steel components, all designed and built in the USA.

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Sunsong North America

Moraine, OH

Based in Moraine, OH, Sunsong North America is a vertically integrated manufacturer specializing in automotive fluid transfer hoses and lines. They develop innovative products, exceeding industry quality standards, and supply over 20 OEMs with various hose assemblies for power steering, brake, and AC systems.

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The Hose Company

Matthews, NC

Based in Matthews, NC, The Hose Company specializes in providing high-quality hydraulic, industrial, and pressure washer hoses. They offer custom hose assemblies, bulk hoses, and a wide selection of fittings and adapters. The company serves professionals needing reliable fluid transfer solutions for various industrial and automotive applications.

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Tri Valley Hose

Livermore, CA

Based in Livermore, CA, Tri Valley Hose specializes in custom industrial, hydraulic, and automotive hose assemblies. They provide O.E.M. custom manufacturing for applications including brake lines, power steering, air conditioning, transmission, and fuel lines. Serving contractors, industrial facilities, and DIY enthusiasts, they offer a wide selection and expert advice.

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TurboHoses Inc.

Livermore, CA

Based in Livermore, CA, TurboHoses Inc. specializes in manufacturing and custom fabricating automotive hoses. The company focuses on high-performance hose solutions, particularly for turbo applications, serving industrial and automotive clients with durable and precision-engineered products.

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HEL Performance

Mount Dora, FL

Based in Mount Dora, FL, HEL Performance manufactures custom high-performance stainless steel lines for automotive and motorcycle applications. They design durable brake and clutch lines for various vehicles, offering both custom setups and OEM solutions. Products are crafted for optimal performance and precise fit.

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SumiRiko Ohio, Inc.

Tazewell, TN

SumiRiko Ohio, Inc. is a US division of Sumitomo Riko Company Limited, supplying top-of-the-line products to the automotive industry. The company manufactures hose products designed to carry fluids while resisting heat and absorbing vibration. It also produces anti-vibration rubber products.

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Proterial Cable America

Manchester, NH

Proterial Cable America, based in Manchester, NH, manufactures brake hose and electrical wiring technologies for OE Manufacturers and Tier 1 Automotive Suppliers. They also produce innovative materials and components for data communications, medical, and defense sectors, serving Original Equipment Manufacturers.

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Vip Rubber & Plastic

La Habra, CA

Based in La Habra, CA, Vip Rubber & Plastic specializes in custom rubber extrusions, plastic extrusions, molded rubber products, and plastic pipe and tubing. The company has manufactured high-quality parts in the USA since 1961, serving diverse industrial applications.

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VOSS Automotive, Inc.

Fort Wayne, IN

Based in Fort Wayne, IN, VOSS Automotive, Inc. specializes in innovative line and connection technology for vehicle systems. The company provides customized solutions, including quick connectors, line assemblies, and hydraulic connections for commercial vehicles, construction, agriculture, and passenger car industries. They are a tier one global supplier.

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WARCO

Orange, CA

Based in Orange, CA, WARCO specializes in custom rubber extrusions, sheet rubber, and fabricated rubber parts, including seals, gaskets, and tubing. They provide comprehensive capabilities such as extrusion, splicing, and molding for diverse industrial applications, serving the automotive, aerospace, and medical sectors.

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Calpex Plastics Inc.

Oceanside, CA

Based in Oceanside, CA, Calpex Plastics Inc. specializes in custom plastic extrusions. They manufacture tubing, pipes, profiles, rods, spiral wrap, and coils. Serving the automotive, electronics, packaging, and recreational vehicle industries, they provide essential extruded components for various demanding applications.

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Detroit Flex Defense

Troy, MI

Based in Troy, MI, Detroit Flex Defense manufactures custom hose and fitting products with in-house braiding capabilities. The company is a global automotive supplier, providing engineered fluid and media solutions for the niche automotive, defense, aerospace, alternative fuels, and industrial sectors.

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Fore Innovations

Fore Innovations provides high-performance PTFE -10 hoses designed for automotive applications. These durable hoses are compatible with all automotive fuels, lubricants, and coolants, offering infinite shelf and service life. Their non-permeable construction prevents fuel odors in parked vehicles.

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Goodridge Ltd

Mooresville, NC

Goodridge Ltd, based in Mooresville, NC, manufactures high-performance fluid transfer systems for niche OEM, racing, and performance automotive markets. They specialize in custom-engineered hoses and fittings designed for demanding applications, serving a global clientele with advanced manufacturing capabilities.

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Hutchinson

Livonia, MI

Hutchinson, based in Livonia, MI, specializes in fluid and thermal management systems for the automotive industry. They manufacture advanced hoses, including battery thermal management systems, integrating specialized materials. With significant US manufacturing capabilities, Hutchinson provides comprehensive engineering and production for automotive hose applications.

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TI Fluid Systems

Auburn Hills, MI

TI Fluid Systems designs and manufactures advanced thermal management and fluid handling systems. They provide essential automotive hose and fluid transfer solutions, engineered to improve efficiency, performance, and sustainability for the automotive sector. The company directly offers its manufactured products and expertise.

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BH Tubes

Based in Souderton, PA, BH Tubes manufactures high-quality heating and cooling system hoses, including 4-ply silicone elbows and pieces, for diverse automotive applications. Their product line features coolant tubes, CAC/intake, and transmission system components, all proudly made in the USA.

Phone available

Continental

Continental manufactures advanced automotive hoses and lines, specializing in sophisticated thermal management for electric vehicle batteries. Their engineered products are crucial for various critical automotive systems, ensuring optimal fluid and air transfer. Continental is a global supplier, known for developing high-quality, high-performance hose technology for the modern automotive industry.

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Hose-Fast Inc.

Garland, TX

Based in Garland, TX, Hose-Fast Inc. provides custom automotive hose assemblies and repair services for major car manufacturers, foreign and domestic. Serving the Dallas/Fort Worth Metroplex since 1963, the company also offers hydraulic cylinder repair and machine shop services, alongside distributing racing products like stainless braided hose.

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HPS Performance

HPS Performance manufactures and distributes high-temperature reinforced silicone hoses and charge air cooler (CAC) hoses. They offer a range of automotive products and custom solutions for sectors including high-performance racing, commercial trucking, marine, EV, heavy duty equipment, and turbo diesel applications.

Phone available

Milton Industries

Chicago, IL

Milton Industries supplies heavy-duty EPDM rubber hoses designed for tough service station and shop applications. These durable, kink-resistant hoses are available for purchase directly from their website, serving industrial and commercial customers.

Phone available

Swagelok Northern California

Swagelok Northern California provides custom hose assemblies, building thousands of tested and documented hoses annually. Their certified hose technicians specialize in kitting, assembly, and delivering leak-free fluid system solutions. They offer timely prototype parts and innovative solutions, all backed by Swagelok's warranty for various industrial applications.

Phone available

O2 Cool Manufacturing

Decatur, TX

Based in Decatur, TX, O2 Cool Manufacturing designs and manufactures customized HVAC systems for commercial, specialty, and heavy-duty vehicles. They provide automotive air conditioning parts, including essential hoses, fittings, and clamps, for luxury coach and conversion markets. The company focuses on high performance and durability in vehicle comfort systems.

Phone available

Royal Brass Incorporated

San Jose, CA

Royal Brass Incorporated, based in San Jose, CA, offers specialized customization services for various parts, including on-demand hose customization. The company focuses on efficient and accurate part selection, providing tailored solutions for industrial and automotive needs.

Phone available

RB Royal

Fond Du Lac, WI

Based in Fond du Lac, WI, RB Royal specializes in custom fluid transfer systems and turnkey tube manufacturing. They produce hoses, hardlines, and hybrid solutions for commercial on-road truck applications. Their 90,000 sq ft facility ensures dependable, durable fluid transfer products tailored to specific engineering needs.

Phone available

Rubber Mexico

Fontana, CA

Based in Fontana, CA, Rubber Mexico specializes in custom rubber manufacturing and OEM rubber parts, leveraging over 50 years of experience. They produce high-performance custom molded rubber components, including mandrel formed hoses, for demanding industries such as automotive, industrial equipment, and specialized manufacturing in the US and Mexico.

Phone available

Thermoid

Thermoid manufactures a wide variety of industrial hoses and other rubber products, from standard to custom-designed. The company provides hose solutions for thousands of industrial customers and OEMs globally, catering to demanding applications. All Thermoid products are proudly made in the USA.

Phone available

Anaheim Custom Extruders, Inc.

Plainwell, MI

Based in Plainwell, MI, Anaheim Custom Extruders, Inc. specializes in providing high-quality, customized extruded plastic solutions. The company manufactures various custom plastic profiles and components, serving industrial clients who require precise plastic extrusion. Their capabilities are suitable for producing specific plastic parts or tubing used in automotive hose manufacturing.

No contact on file

Hose-TEK

Hose-TEK specializes in manufacturing hoses for diverse automotive applications. The company produces high-quality hoses for both Original Equipment Manufacturers (OEMs) and the aftermarket segment. They focus on ensuring superior compatibility and optimal performance across a wide spectrum of vehicles, meeting industry standards.

No contact on file

Killerglass

Long Beach, CA

Killerglass manufactures clear radiator and heater hoses for automotive and motorcycle applications. Based in Long Beach, California, the company offers custom-made and stock-sized hoses for various vehicles including cars, trucks, and motorcycles. Products are made in Southern California, USA, serving both enthusiasts and commercial clients.

No contact on file

Yokohama Industries Americas Inc

Versailles, KY

Yokohama Industries Americas Inc specializes in manufacturing hose and tube assemblies for automotive applications. Based in Versailles, KY, the company produces a comprehensive range of components, including air conditioning lines, transmission cooler lines, power steering lines, and electrified vehicle thermal lines.

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How to Choose a Company

  • Verify their capability for specific hose types like SAE J30R compliant fuel lines or SAE J2044 quick-connect assemblies, ensuring their internal testing labs can validate required permeation rates and burst pressures specific to your application's operational envelope.
  • For any OEM or Tier 1 application, require IATF 16949 certification, not just ISO 9001. Additionally, review their specific material certifications for compounds like HNBR, EPDM, or FKM to ensure long-term chemical compatibility with modern fuels, coolants, or refrigerants.
  • A common pitfall is over-reliance on material data sheets; insist on rigorous application-specific testing for your full hose assembly. This should go beyond standard material property tests to include simulated vibration fatigue, prolonged temperature cycling, and actual fluid compatibility over time to prevent premature field failures.
  • Evaluate their engineering support for Design for Manufacturability (DFM) specifically for complex hose routing and crimp fitting selection. A partner capable of optimizing tooling and ensuring consistent multi-ply construction integrity can prevent costly redesigns and assembly issues later.

Frequently Asked Questions

What are the key material considerations for automotive hoses in EV battery cooling systems?

For EV battery cooling, focus on materials like EPDM or silicone that offer excellent resistance to specialized EV coolants (often propylene glycol-based), broad temperature range stability (-40°C to 150°C+), and low electrical conductivity. Crucially, assess permeation rates to prevent coolant loss over time, and ensure high vibration fatigue resistance for hoses routed within the battery pack or chassis.

How do I verify an automotive hose manufacturer's compliance with SAE J30R specifications?

Beyond requesting their IATF 16949 quality certification, demand specific test reports for ozone resistance, fuel compatibility, burst pressure, and vacuum resistance, all conducted according to the relevant SAE J30R standard (e.g., R7, R9, R14). Ask for their internal process for material traceability, lot control, and how they ensure consistent multi-ply construction for specified performance parameters.

What impact does hose permeation rate have on automotive fuel and refrigerant systems?

A high permeation rate means fuel vapors or refrigerant gases can slowly escape through the hose wall, leading to multiple issues: non-compliance with evaporative emissions regulations (like EPA standards), reduced system efficiency (e.g., diminished AC performance), and increased replenishment needs. To mitigate this, look for manufacturers offering multi-layer hose constructions with specialized barrier layers (e.g., nylon or fluoropolymer) designed for ultra-low permeation.

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