The 100 Largest Auto Parts Manufacturers in the USA

The 100 Largest Auto Parts Manufacturers in the USA

Everything You Need to Know to Understand Who Powers the American Automotive Industry

When you talk about the automotive industry in the United States, you’re talking about a multi-billion-dollar machine that doesn’t stop.

Behind every car, truck, and SUV, there’s a massive network of parts manufacturers ensuring every vehicle runs perfectly. This article from USA.CARROSAZ.COM.BR brings you an in-depth look at the 100 largest auto parts manufacturers in the USA, with details that no one else tells you.

Whether you’re an enthusiast, a mechanic, or someone thinking about entering this business, understanding who these giants are is essential.

Let’s explore the companies that are the backbone of the American auto parts supply chain, from global OEM suppliers to aftermarket kings.

The Giants: The Top 10 Auto Parts Manufacturers in the USA

1. Magna International

A titan in the OEM supply chain, Magna operates with over 179,000 employees and a revenue surpassing $42.8 billion. They produce everything from chassis components to advanced driver assistance systems (ADAS).

2. BorgWarner

Specialists in propulsion systems and electrification technologies. They are leaders in hybrid and electric vehicle components, with a revenue of $14.2 billion.

3. Aptiv (Formerly Delphi Technologies)

Aptiv is at the heart of smart mobility solutions, focusing on electrical systems and autonomous driving technology, making it indispensable to modern vehicles.

4. LKQ Corporation

The absolute king of aftermarket and recycled parts. With a network that spans globally, LKQ serves millions with affordable solutions while promoting sustainability.

5. Tenneco Inc.

One of the oldest players in the field, Tenneco dominates in exhaust systems, suspension components, and emission control technologies.

6. Flex-N-Gate

Founded by billionaire Shahid Khan, Flex-N-Gate supplies OEMs with metal body structures, plastic components, and lighting systems, known for its vertically integrated production.

7. Autoliv Inc.

The world leader in automotive safety systems, Autoliv produces airbags, seatbelts, and safety electronics, supplying virtually all major car manufacturers.

8. Gentex Corporation

Specialists in high-tech rearview mirrors, dimmable windows, and smart sensors, Gentex’s innovations are inside millions of vehicles worldwide.

9. Cardone Industries

A powerhouse in remanufactured parts, offering sustainable solutions in brakes, steering, driveline, and electronics.

10. Federal-Mogul (Part of Tenneco)

With legendary brands like Moog, Wagner, and Champion, Federal-Mogul’s components are present in every corner of the American aftermarket.

The Powerhouses of the Aftermarket

While OEM suppliers focus on the factory lines, the aftermarket players dominate the maintenance and customization sector:

• AutoZone – With over 7,100 stores, AutoZone is America’s go-to for DIY repairs and professional-grade parts.

• O’Reilly Auto Parts – A rapidly growing chain with 6,400 stores known for its massive inventory and excellent customer service.

• Advance Auto Parts – With 4,800+ locations, they are restructuring their logistics network to lead the next wave of aftermarket efficiency.

• NAPA Auto Parts – Supported by Genuine Parts Company, NAPA is a staple for professional mechanics across the country.

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The Essential List: Other Major Manufacturers You Must Know

Here are other industry giants that are shaping the U.S. auto parts market:

• ZF North America

• Continental USA

• American Axle & Manufacturing (AAM)

• Denso USA

• Aisin USA

• Lear Corporation

• Valeo USA

• Cooper Standard

• Dana Incorporated

• Meritor Inc.

• Adient

• Remy International

• TRW Automotive

• Bosch USA

• Hitachi Automotive Systems

• Michelin North America (Components Division)

• Goodyear Tire & Rubber Co. (Auto Components)

• PPG Industries (Automotive Coatings)

• Bridgestone Americas

• ArvinMeritor

• Tower International

• Martinrea International

• Cooper Tire & Rubber Company

• Mando America Corporation

Why You Need to Know These Manufacturers

The American auto parts industry is more than numbers. It’s a complex web of innovation, logistics, and constant adaptation. With electric vehicles, autonomous driving, and sustainability pushing the boundaries, these manufacturers are at the heart of every transformation.

Whether you’re a business owner, car collector, or just a car lover, knowing who these giants are puts you ahead of the game. They dictate not only what goes into the cars but also how the industry moves forward.

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Auto Parts Manufacturers in the USA