Here, we are going to look at the four auto parts retailers with the most locations across the U.S. This includes outlets across all 50 states, including Washington, D.C., plus U.S....

Apr 21, 2026 · AutoZone leads U.S. auto parts retail with 6,720 locations, followed by Western Powersports and O’Reilly at 6,500. Price comparisons show AutoZone often edges O’Reilly on cost, …

The rankings highlight the range of business models in the U.S. auto parts retail sector, from online marketplaces to service-focused chains and specialty suppliers.

As the Q2 earnings season wraps, let’s dig into this quarter’s best and worst performers in the auto parts retailer industry, including Genuine Parts (NYSE:GPC) and its peers.

This trend is fueling steady growth for parts retailers and suppliers, as older vehicles become a key driver of aftermarket sales.

Parts suppliers and service providers that cater to professional mechanics stand to benefit, even as traditional retail sales to individual consumers decline.

By the numbers, the largest auto parts stores in the U.S. are clearly defined by two main competitors: AutoZone and O’Reilly Auto Parts, with Napa Auto Parts trailing closely behind in...

From hilarious counter mishaps to surprising price differences, the world of auto parts shopping is full of lessons for DIYers and pros alike. Whether you swear by AutoZone, O’Reilly, or online...

A comparison of Amazon and RockAuto shows Amazon receiving higher marks from reviewers for shipping speed, pricing transparency, and return handling, while RockAuto draws buyers with lower …

The retailers are presented below in rank order, starting with the top-rated retailer. See the complete tire retailer ratings.

Wrapping up Q2 earnings, we look at the numbers and key takeaways for the auto parts retailer stocks, including Monro (NASDAQ:MNRO) and its peers.