Best Auto Parts Manufacturers Suppliers in United States

Kinetic Die Casting Company, Inc.

🇺🇸 United States

1994

11-50 people

Manufacturer

Established brand

OEM manufacturer

Small batch production

Product customization

Key customer

AMERITRON

Key market

🇺🇸 United States

Description

Kinetic Die Casting Company, Inc. is an American manufacturer and contract manufacturer based in North Hollywood, California, specializing in high-pressure die casting (HPDC) for aluminum and zinc alloys. Established in 1994, this veteran-owned company employs 11 to 50 people and operates a factory with a daily production capacity of 500 to 2,000 parts. They offer comprehensive services including die cast design consultation, prototyping, tooling, machining, and surface finishing. Kinetic Die Casting Company, Inc. produces a diverse range of parts such as aerospace components, automotive parts, pumps, housings, handles, brackets, hardware, nameplates, signs, displays, military parts, heater plates, heat sinks, lighting parts, and speaker parts. They work with aluminum alloys like A380, A383, A360, A413, and K-Alloy, as well as zinc alloys including ZA27. The company is certified with ISO 9001 and AS9100, and holds ITAR, RoHS 3 REACH, Certificate of Conformance, and Certificate of U.S. Manufacture compliance. They cater to various industries including automotive, aerospace, military, and electronics, handling both short runs (100 parts or less) and high-quantity production (5,000 parts or more per delivery), with annual needs ranging from 100 to 200,000 parts. They also provide value-added services such as powder coating, painting, plating, assembly, and packaging.

Military Parts Video

Kinetic Aluminum Parts Die Casting Company

Aluminum Part Die Casting Company

Die Casting Part Video

Auto Parts Video

Photos Diecasting Parts and Aluminum diecasting

Die Casting Parts and Tooling Request For Quote Form

Aluminum die casting lighting part

Aluminum Parts Diecasting Answers

Die cast aluminum car part

KDC Aluminum Parts

aluminum diecasting military part

B.L. Downey Company LLC

🇺🇸 United States

1956

101-200 people

Manufacturer/Service Company

Established brand

Product customization

Industry association member

Key customer

FORD

Key market

🇺🇸 United States

Description

B.L. Downey Company LLC is a premier contract manufacturer and industry pioneer specializing in custom coating technology. Established in 1956 and headquartered in Broadview, Illinois, the company operates an expansive 325,000-square-foot facility. With a workforce of approximately 150 employees, they provide comprehensive metal finishing solutions, including E-coating, powder coating, plastisol, and fusion-bonded epoxy (FBE). Their advanced technical capabilities allow for the processing of diverse substrates such as carbon steel, aluminum, magnesium, and stainless steel, handling components ranging from small parts to massive structures up to 100 feet in length and 10,000 pounds. The company is recognized for its "Powder Coat on top of E-coat" (POE) technology and maintains a robust infrastructure featuring 11 powder coating lines, 5 E-coat lines, and multiple steel grit shot blast machines. Beyond coatings, B.L. Downey offers value-added services such as metal fabrication, deburring, polishing, and specialized masking. They serve a global clientele across demanding sectors including automotive, military (CARC coatings), agriculture, construction, electronics, and architectural industries, supporting major OEMs like John Deere, Ford, and Volvo. Committed to high-quality standards, B.L. Downey Company LLC is ISO 9001:2015 certified and holds additional certifications from UL, CE, and the CRSI. Their facility includes a full testing laboratory for adhesion, salt spray, and film thickness to ensure superior protective and decorative finishes.

Machinery Parts

DT metronic, Inc.

🇺🇸 United States

1983

11-50 people

Manufacturer/Service Company

Established brand

OEM manufacturer

Product customization

Multinational enterprise

Shipments

Key customer

KINPO ELECTRONIC PHILIPPINES INC

Key market

North America

Description

DT metronic, Inc. is a specialized manufacturer of custom decorative elements and precision-engineered mechanical components based in Downers Grove, Illinois. Established in 1983 and operating as a key subsidiary of the Decor-Technik Group, the company provides comprehensive B2B solutions ranging from design engineering and prototyping to large-scale series production. They serve a prestigious global clientele across the automotive, electronics, medical technology, and musical instrument industries, including brands such as Audi, Bose, Cadillac, and C.F. Martin Guitars. The company operates a factory equipped for diverse manufacturing processes, including zinc die casting, nickel electroforming, aluminum extrusion, plastic injection molding, and precision stamping. Their core product portfolio features high-quality metal nameplates, emblems, badges, decals, and graphic overlays, alongside functional components like heat sinks, front panels, and mechanical parts. DT metronic, Inc. is distinguished by its ability to work with a wide array of materials such as aluminum, stainless steel, brass, and copper, offering advanced surface treatments including galvanizing, diamond cutting, and UV printing. With a commitment to quality management and technical excellence, DT metronic, Inc. is ISO 9001:2015 certified. The company supports its manufacturing capabilities with expert consulting, material planning, and logistics services, ensuring tailored solutions for both decorative branding and complex electromechanical applications.

EMS Thin Metal Parts, LLC

🇺🇸 United States

2002

51-100 people

Manufacturer

Established brand

OEM manufacturer

Product customization

Small batch production

Shipments

Key customer

GOODRICH AEROSPACE SERVICE PRIVATE LIMITED

Key market

North America

Description

EMS Thin Metal Parts, LLC, founded in 2002 and based in Colorado Springs, US, is a manufacturer and contract manufacturer specializing in high-precision custom metal parts and micro-components. With 51-100 employees, the company is an essential supplier to the medical, aerospace, and defense industries, operating a factory that expanded by 70% in 2017. They utilize a comprehensive range of advanced metal fabrication techniques including chemical milling, electroforming, and laser cutting, with capabilities for parts as thin as 0.0003” and through-hole features as small as 0.0005” (12.5 microns). Their product portfolio includes encoder wheels, mesh, sieves, electrical connectors, gaskets, print heads, medical device components, deposition masks, codewheels, electronic components, reticles, apertures, rotary encoder disks, contacts, and aperture plates. EMS Thin Metal Parts offers OEM and ODM services, providing custom product solutions and prototypes with in-house engineering support and tooling creation. The company holds ISO 9001 (including 2000 and 2024 versions), RoHS, DFARS compliance, and ITAR registered certifications, ensuring high quality and compliance for its global client base. As part of the Wickeder Group, a German family-owned global manufacturing group, EMS Thin Metal Parts leverages extensive resources and expertise to serve diverse industries.

Automotive / Transportation

Custom Metal Parts

Stamped Parts, Coils, Assemblies

Xcentric Mold & Engineering, Inc.

🇺🇸 United States

1996

51-100 people

Manufacturer/Service Company

Established brand

OEM manufacturer

Product customization

High-tech enterprise

Key customer

ROYAL POWER SOLUTIONS

Key market

North America

Description

Xcentric Mold & Engineering, Inc. is a US-based contract manufacturer and service company specializing in on-demand manufacturing solutions. Established in 1996 and employing 51-100 people, the company operates two manufacturing facilities in Michigan, USA. Xcentric Mold & Engineering offers a comprehensive portfolio of services including plastic injection molding (prototype, bridge, production, over-molding, insert-molding, and cast urethane), mold making, high-precision CNC machining, and 3D printing (additive manufacturing). They are ISO 9001:2015, UL registered, and ITAR compliant, ensuring high-quality standards. The company is part of Quickparts, expanding its capabilities to provide end-to-end solutions from rapid prototyping to short-run production. Xcentric Mold & Engineering serves diverse industries such as medical, industrial, aerospace, consumer, automotive, and defense, focusing on quick-turnaround and efficient delivery of custom parts.

Automotive

Senior Flexonics Inc

🇺🇸 United States

1903

201-300 people

Manufacturer/Service Company/Trading Company

Established brand

OEM manufacturer

Product customization

Industry association member

Shipments

Key customer

DINEX EMISSION

Key market

🇨🇳 China

Description

Senior Flexonics Inc, a subsidiary of Senior PLC, is a premier global manufacturer and engineering specialist with over 100 years of experience in thermal management and fluid conveyance solutions. Headquartered in Bartlett, Illinois, the company operates as a multi-industry corporation specializing in the design, validation, and high-volume production of complex metallic components. Their core expertise lies in precision-engineered metal bellows, expansion joints, flexible metal tubing, and advanced heat exchangers. Senior Flexonics serves a diverse range of demanding sectors, including automotive (combustion, hybrid, and electric vehicles), power generation, oil and gas, medical, and aerospace. For the automotive industry, they provide critical components such as EGR coolers, fuel rails, and battery cooling plates for electric vehicles. Their industrial portfolio includes vacuum interrupters, cryogenic equipment, and high-pressure pipes. The company maintains a strong focus on innovation and sustainability, utilizing advanced analytical testing, FEA/CFD modeling, and rapid prototyping to meet stringent global emission standards. Manufacturing capabilities encompass high-precision machining, welding, brazing, and forming of specialized high-temperature alloys. Senior Flexonics is committed to quality and environmental excellence, holding ISO 9001, IATF 16949, and ISO 14001 certifications, while also maintaining ITAR compliance for defense-related applications.

Automotive Flexible Tube

Automotive Heat Exchangers

Automotive Exhaust Connector

Automotive Common Rail

Automotive Drain Tube

Automotive High Pressure Lines

JDS Technologies, Inc.

🇺🇸 United States

2002

51-100 people

Manufacturer/Trading Company/Wholesaler

Established brand

OEM manufacturer

Product customization

Shipments

375

Key customer

CONG TY TNHH THIET BI GIENG DAU DOUSON VIET NAM

Key market

🇨🇳 China

Description

JDS Technologies, Inc., founded in 2002 and headquartered in Oneida, Tennessee, is a global manufacturer and wholesaler specializing in engineered rubber and plastic molded products. The company operates multiple facilities, including locations in Scott, Louisiana, and Winfield, Tennessee, serving critical sectors such as Oil & Gas, Aerospace, Automotive, Medical, and Appliances. With a workforce of approximately 50 to 100 employees and annual revenues estimated between $9 million and $26 million, the organization is recognized for its technical expertise in compression molding, injection molding, and metal stamping. Their extensive product portfolio includes high-performance seals, gaskets, O-rings, hoses, bellows, isolators, and custom rubber components for medical devices. JDS Technologies also provides specialized solutions for major appliance OEMs, such as air vent and water path systems, as well as hard rubber battery boxes and electrical connector assemblies. The company maintains a strong commitment to quality and industry compliance, holding certifications such as IATF 16949, ISO/TS 16949, API Q1, and API QR. As a value-added supplier, JDS Technologies offers comprehensive engineering services, including rapid prototyping, material selection, and insert processing. Their global supply chain is supported by robust international trade operations, importing specialized industrial components and machinery from partners across China, South Korea, India, and Vietnam to ensure speed to market and on-time delivery for their diverse industrial clientele.

Automotive

WTS Connects

🇺🇸 United States

2000

11-50 people

Manufacturer/Service Company

Established brand

OEM manufacturer

Product customization

Key customer

DELPHI

Key market

North America

Description

WTS Connects is a contract manufacturer and service company based in Placentia, California, specializing in custom electric cable and wire harness assemblies for industrial and automotive applications. Founded in 2000, the company employs 11-50 people and generates an annual revenue of $6.1 million. WTS Connects offers a comprehensive range of products including wire harnesses, cable assemblies, wire leads, overmolded assemblies, and electro-mechanical assemblies. They also provide Wire Harness Connector Kits and repair supplies such as Automotive Wire, Crimp Tools, and Wire Striping Pens. The company builds to OEM specifications, offering rapid prototyping, low to high-volume production, aftermarket repairs, and engineering design support. With over 25 years of manufacturing experience, WTS Connects utilizes state-of-the-art automated and semi-automated wire processing equipment. They are ISO 9001:2008 compliant, CSA, and RoHS certified, and support OEMs throughout North America, serving industries including medical, commercial, appliance, industrial, and transportation. WTS Connects is also a certified DBE/WBE business.

Automotive Wire

Fabricage Group LP

🇺🇸 United States

2016

Fewer than 5 people

Manufacturer/Service Company

OEM manufacturer

Product customization

Patented technology

Key customer

ACE HARDWARE

Description

Fabricage Group LP, established in 2016, is a US-based manufacturer and service company located in Pittsburgh, Pennsylvania, specializing in end-to-end manufacturing solutions from prototyping to production. With a focus on increasing efficiency and accelerating product development, the company acts as a dedicated partner for businesses ranging from startups to large enterprises. They offer comprehensive contract manufacturing services including CNC machining, injection molding, additive manufacturing, production line manufacturing, CAD design, and patent design drawings. Their capabilities extend to metal fabrication, laser cutting, metal casting, metal stamping, plastic extrusion, bending, vacuum forming, and various molding processes such as blow, rotational, and overmolding. Fabricage Group LP serves diverse industries including consumer products, automotive, hardware startups, lifestyle & sporting goods, electronics & semiconductors, and sports. They handle both prototype and large volume production runs for products made from plastic, metal, and polymer, ensuring precision and quality through state-of-the-art equipment and experienced technicians. The company also provides design services to transform CAD files into tangible prototypes or finished products and leverages relationships with domestic and overseas manufacturers while maintaining NDAs for intellectual property protection.

Automotive

PACIFIC X AUTO CORPORATION

🇺🇸 United States

2001

11-50 people

Manufacturer/Trading Company/Service Company

Established brand

OEM manufacturer

High-tech enterprise

Shipments

Key customer

ZF POWERTRAIN MODULES SALTILLO SA DE CV

Key market

🇺🇸 United States

Description

PACIFIC X AUTO CORPORATION, established in 2001, is a US-based manufacturer, trading company, and service provider specializing in automotive and industrial parts. With headquarters in the USA and manufacturing plants in Daegu, Korea, the company operates with 11 to 50 employees and focuses on R&D, smart factory technologies, and advanced production processes. They are certified with ISO 9001, IATF 16949, ISO 14001, and ISO 45001, demonstrating their commitment to quality and environmental management. PACIFIC X AUTO CORPORATION offers a wide range of products including Transmission parts, Eco-friendly Vehicle parts, Cold former parts, and Appliance parts. Their manufacturing capabilities encompass precision machining, cold heading and forming hardware, stamping and progressive dies, wire forming, and powder metal parts. They provide OEM and contract manufacturing services, with a strong focus on automotive accessory components. The company has a global reach, supplying to major customers like TESLA and FORD, and actively engages in international trade, importing components from South Korea. They also offer technical support, order services, and delivery services, managing the supply and delivery of automotive parts with a focus on quality and cost control.