Auto Parts Retailers

The 15,153 auto parts retailers in the US sell automotive parts, supplies, and accessories. Companies may also sell batteries, lubricants, audio equipment, tires, and used products. While the majority of revenue typically comes from do-it-yourself (DIY) customers, large companies may have sizable commercial (do-it-for-me, DIFM) sales. Some companies offer repair, installation, or maintenance services.

Competition

Auto parts retailers compete with a variety of alternative sources, including traditional retailers (mass merchandisers, discount stores, hardware stores, supermarkets, drugstores, convenience stores), online marketplaces, and auto dealers.

Increasing Vehicle Complexity

The growing use of electronic components has increased the complexity of vehicles, resulting in a shift away from DIY jobs and towards DIFM.

Sep 2, 2026 - Auto Parts Retailers Face New Tariff Pressure

• Auto supply retailers are facing a new round of cost and inventory pressure as the US trade fight with Canada puts cross-border auto parts squarely in the middle. Tariffs on Canadian cars, trucks, auto parts, and steel are set to rise to 50% on January 1, 2027, potentially raising costs for everything from replacement components to maintenance products sold through retail stores. The bigger headache may be figuring out what those costs will actually look like months from now. US tariff plans have repeatedly been threatened, delayed, changed, and revived, making it harder for retailers to negotiate supplier contracts, set prices, or decide how much inventory to carry. Canada’s counter tariffs on US goods beginning September 8 could create additional disruptions, while parts that cross the border multiple times during production may be especially vulnerable to higher costs.
• The shift in routine vehicle maintenance from dealerships to independent repair shops and quick lube chains is creating new opportunities for auto parts retailers. According to market researcher Ducker Carlisle, dealership service transactions fell 13% between January 2025 and January 2026, the steepest decline in an industry where overall service transactions dropped 11%, as independent repairers captured a larger share of maintenance work. Automotive News reports that dealerships now charge an average of $521 per service visit, compared with $271 at repair chains, encouraging more consumers to seek lower-cost alternatives for routine service. More drivers are also tackling basic maintenance themselves or buying parts for installation at independent shops, supporting demand for aftermarket parts, tools, and accessories sold through retail channels. The trend reinforces the importance of competitive pricing, broad product selection, and knowledgeable customer service as retailers compete for both do-it-yourself consumers and professional repair customers.
• Inventories are piling up across the auto parts industry, but it’s less a sign of collapse than a case of companies overcorrecting after the chaos of recent years. In the wake of pandemic and tariff shortages, manufacturers ditched lean “just-in-time” models and began stockpiling parts, only to find demand cooling as higher interest rates slowed car sales and repair activity normalized. At the same time, the industry’s uneven shift to electric vehicles has left suppliers heavy on legacy gas-powered components even as long-term demand drifts elsewhere. A final twist: as supply chains unclogged, delayed shipments landed all at once, further swelling stockrooms. The backdrop isn’t weak demand (the global aftermarket is still expected to top $500 billion in 2026, according to Motor Intelligence) but rather a mistimed balancing act between obstacles largely beyond the industry’s control.
• When the Supreme Court struck down the Trump tariffs in February 2026, auto parts retailers were hoping for a reprieve - but got little of one. The ruling left the most painful duties untouched: the 25% tariffs on foreign vehicles and auto parts, plus 50% levies on steel and aluminum, all imposed under separate legal authority the court never touched. Industry groups like Specialty Equipment Market Association pledged to keep fighting, even as the government moved to expand the list of auto parts subject to tariffs in 2026, piling on more uncertainty rather than less. There's a potential silver lining in refunds: the industry had paid roughly $8.6 billion in now-illegal duties through October 2025, though lawyers warn the path to recovering that money will be slow and messy. A new 15% blanket tariff did take effect February 24, but auto parts were carved out through July 2026.

Industry size & Structure

The average auto parts retailer employs 25 workers, and generates about $5.7 million annually.

• The auto parts retailing industry consists of about 15,153 companies that employ 388,260 workers and generates about $87.6 billion annually.
• The industry is concentrated at the top and fragmented at the bottom; the top 20 firms account for about 59% of industry sales.
• Large companies include AutoZone, Advance Auto Parts, and O'Reilly Automotive Stores.
• Some large auto parts distributors have retail operations.