Largest Car Parts Stores in the United States Ranked Among the Top 6

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Are you ready to turbocharge your ride with the perfect parts? Look no further! We’ve scoured every nook and cranny of America, meticulously researching and comparing car part stores. From big-name nationwide chains to hidden gems in local neighborhoods, we’ve curated a list of only the absolute best places for your car part shopping needs. Get ready to rev up your experience with competitively priced, top-notch auto parts. Whether you need help with brakes or batteries, these top picks guarantee flawless performance from pitstop to pitstop. Let’s delve into what makes them shine, so you can find everything you need under one roof…

Without any more delays, here are the crème de la crème car parts stores in the United States:

  1. AutoZone – The nation’s largest auto parts chain, with a whopping 6,700 stores nationwide.
  2. NAPA Auto Parts – A behemoth with over 6,000 stores, ranking second in size across the country.
  3. O’Reilly Auto Parts – Sliding into third place, this chain boasts more than 5,600 stores nationwide.
  4. Advance Auto Parts – With just over 5,000 stores, this contender proudly claims the fourth spot in the USA.
  5. Pep Boys Auto Parts – Securing fifth place, this solid chain stretches across the nation with over 1,000 stores.
  6. Carquest Auto Parts – Part of the Advance Auto Parts family, this chain holds 1,367 stores, placing it as the sixth-largest in the USA.

We’ve also conjured up a fascinating list of the finest online-only auto parts stores.


AutoZone reigns supreme as the premier destination for automotive parts, accessories, and related services in the United States. With its inception in 1979, this powerhouse has expanded to a staggering 6,700 stores scattered throughout the country. Besides their brick-and-mortar presence, AutoZone Auto Parts offers an exceptional online store, enabling customers to effortlessly browse and shop for top-quality auto parts and accessories from the comfort of their own homes.

AutoZone Auto Parts is the largest chain of auto parts stores in the USA

AutoZone is famous for offering a vast selection of auto parts at unbeatable prices, backed by a knowledgeable and passionate staff. To sweeten the deal, the company’s exclusive “AutoZone Rewards” program allows customers to earn points on every purchase, which can later be redeemed for exciting discounts on future orders.

AutoZone provides a variety of valuable services, such as complimentary diagnostic testing, convenient tool borrowing programs, and free battery testing and installation within their stores.

#2 NAPA Auto Parts (National Automotive Parts Association)

NAPA Auto Parts is a leader in the United States automotive parts and accessories market. With easy online ordering and over 6,000 stores nationwide, NAPA has become synonymous with do-it-yourself car care projects. They even have a loyalty program called NAPA Rewards that allows customers to earn points on purchases for future discounts. NAPA also offers additional services like battery testing and wiper blade installation at select locations. And let’s not forget their commitment to sustainability through oil recycling initiatives.

NAPA Auto Parts is the second largest auto parts store chain in the USA

#3 O’Reilly Auto Parts

O’Reilly Auto Parts has been a trusted provider of affordable and reliable automotive parts, accessories, and services since 1957. With over 5,600 stores across the US and Mexico, as well as an online store, O’Reilly offers convenience and expertise. Their loyalty program, O’Reilly Rewards, gives customers points that can be used towards discounts on future purchases. Plus, they provide special offers like free battery testing, wiper blade installation, and oil recycling. O’Reilly is also making waves in the commercial market with their “Commercial Customer” program. And they are committed to sustainability by recycling used motor oil and transitioning to alternative fuels for their delivery fleet.

OReilly Auto Parts is the third largest chain of auto parts stores in the USA

#4 Advance Auto Parts

Advance Auto Parts is a top destination for automotive parts and accessories. With their online store and numerous locations, Advance Auto Parts makes it easy for customers to find what they need. While they don’t have a loyalty program like some of their competitors, they still offer great value and service. And just like the other auto parts giants, Advance Auto Parts is focused on sustainability through their recycling initiatives and the use of alternative fuels.

Since its establishment in 1932, Advance Auto Parts has emerged as a dominant force in the automotive parts and services industry across the United States. Presently, it operates more than 5,000 physical stores nationwide and boasts a user-friendly online store to cater to the convenience of its customers. Here, you can find a comprehensive range of automotive products at competitive prices. Moreover, customers can benefit from complimentary battery testing, wiper blade installation, and oil recycling services, in addition to exclusive discounts through their loyalty program called ‘Speed Perks’ — a reward system based on points earned from purchases.

Advance Auto Parts leads the way by providing top-notch offerings to professional mechanics, while also giving due importance to their ecological impact. They have recently introduced a recycling program for used motor oil and converted their delivery fleet to operate on alternative fuels, effectively striking a balance between business objectives and environmentally-friendly practices in the auto parts industry.

Advance Auto Parts is the fourth largest auto parts chain in the USA

#5 Pep Boys

Pep Boys holds the reputation as the ultimate destination for car owners all across America. With a network of over 1,000 outlets spanning the nation, they offer a wide range of high-quality automotive parts at affordable prices, making them the go-to choice for customers seeking expert assistance. But Pep Boys doesn’t stop there — loyal customers are rewarded through their “Pep Rewards” loyalty program, allowing them to earn points that can be redeemed for discounts.

If you wish to rejuvenate your vehicle and return it to its former glory, simply visit one of their service centers where skilled professionals will efficiently take care of your oil changes, brake repairs, and tire rotations without burning a hole in your pocket. Adding to their accomplishments, Pep Boys actively contributes to environmental sustainability by recycling used motor oil and transitioning their delivery vehicles to alternative fuels. So, why wait any longer? Equip yourself with Pep Boys Auto parts today because when wheels turn faster, so do minds!

Pep Boys Auto Parts is the fifth largest chain of auto parts stores in the USA

#6 Carquest Auto Parts

Experience the joy of a flawlessly functioning car once again with Carquest Auto Parts, the leading supplier of automotive products and accessories in the United States. Established in 1974 as a family-run business, Carquest Auto Parts has expanded to encompass a vast network of 1,367 auto parts stores across the nation. To enhance convenience, they also offer an online store for seamless online shopping.

With unmatched prices and a knowledgeable staff at your service, coupled with complimentary battery testing and wiper blade installation facilities, it’s no surprise that customers keep revisiting Carquest Auto Parts. Let’s not forget about their loyalty program, ‘Carquest Rewards’, which enables customers to earn points and avail attractive discounts on future purchases. So fasten your seatbelts, folks, because Carquest Auto Parts is here to revolutionize your automotive experience with the friendliness of a familiar neighborhood mechanic times thirteen hundred sixty-seven!

Carquest Auto Parts is the sixth largest chain of auto parts stores in the USA


Embarking on a thrilling journey through the realm of automotive parts, car owners are now turning to online stores for all their needs. With just a simple click, you can explore a treasure trove of brand-new and pre-owned auto parts and accessories, all at competitive prices, courtesy of these digitally savvy stores. Bid farewell to old-fashioned guidebooks because now you can effortlessly shop for any part your beloved ride craves, all from the cozy confines of your home. Allow us to introduce you to these remarkable online destinations, where car enthusiasts and tech-savvy mechanics unite for a seamless shopping experience!

Amazon Automotive

With Amazon Automotive, supercharging your vehicle becomes as easy as a few clicks of the mouse. Discover an extensive array of new car parts, performance upgrades, and tools for every car and truck on the spectrum, from timeless classics to sizzling hot rods. This colossal online marketplace has it all! Benefit from their swift shipping options and hassle-free returns policy, ensuring that your automotive necessities are delivered straight to your doorstep. Why waste time searching the streets when Amazon Automotive provides everything you need at your fingertips?

Amazon Automotive largest online only auto parts store

eBay Motors

Calling all car aficionados and skilled mechanics! eBay Motors is your ultimate destination for all things auto parts. This virtual marketplace boasts a remarkable assortment of new and used automotive components, ranging from essential replacements to performance-enhancing upgrades. With their user-friendly website, convenient payment methods, and vast catalogs of diverse products, there’s no doubt that eBay Motors will be your go-to when it comes to servicing your beloved vehicle. Whether you’re in pursuit of a rare gem or require a set of spare spark plugs, remember to turn to eBay Motors for all your under-the-hood needs!

eBay Motors is everyone's favorite place to list their auto parts

Planning a car project and craving high-quality auto parts? Look no further than! This premier online retailer has something to offer everyone, from the weekend warriors seeking adventure under the hood to seasoned mechanics aiming for perfection. With their extensive selection of parts catering to all types of vehicles – including cars, trucks, and motorcycles – has you covered. Don’t worry about breaking the bank either, as their prices are truly unbeatable. And if you have concerns about shipping, fear not! Fast delivery and hassle-free returns ensure a seamless experience every step of the way. is your ultimate online hub for car enthusiasts and mechanics who want top-notch parts without breaking the bank! Established in 1995, has emerged as a prominent retail website, providing an extensive assortment of vehicle accessories for cars, trucks, motorcycles, and more. Discover the joy of shopping on their user-friendly platform, complete with free shipping on orders over $50 and a price match guarantee. Rest easy, knowing you’ve snagged the best deal out there. an online new and used auto parts retailer that sends parts from local partners

Look no further than for all your automotive needs. Since 1999, this one-stop shop has been the go-to destination for car repairs, offering quality parts and services at unbeatable prices. Whether you’re a seasoned mechanic or an everyday driver seeking guidance, has got you covered. Take advantage of their free technical support and step-by-step installation videos, simplifying your DIY tasks like never before. And if you encounter any setbacks, worry not! Enjoy hassle-free returns within 60 days, ensuring you hit the road with confidence. has thousands of local auto parts stores in their inventory

Parts Geek

Since 2008, Parts Geek has remained the ultimate one-stop shop for both domestic and import car parts. With an extensive inventory of millions of genuine, OEM, aftermarket upgrades, refurbished, and rebuilt auto accessories, you’ll find everything you need at unbeatable prices. Say goodbye to the frustration of hunting down hard-to-find car parts. Parts Geek brings them directly to your fingertips, saving precious time for busy mechanics. Why pay exorbitant prices at local stores when you can get the same high-quality products from renowned brands at a fraction of the cost? Experience the convenience and affordability that Parts Geek offers, and you’ll never look back. 1A AUTO: AFTERMARKET AUTO PARTS ONLINE RETAILER

Parts Geek proudly presents a vast selection of auto parts and accessories at wholesale prices, promising savings of up to 80% off list prices. Browse through their extensive collection of over 10 million parts and accessories, featuring reputable brands and manufacturers. From OEM to aftermarket options, Parts Geek has got you covered across the United States.

Parts Geek boasts an impressive 30-day return policy, making it the go-to source for vintage and discontinued vehicle parts. Discover an extensive catalog of parts tailored to your needs at Enjoy lightning-fast shipping and the convenience of an intuitive online catalog that lets you effortlessly search for parts based on the year, make, and model of your beloved ride.

Parts Geek is an online auto parts warehouse marketplace for the most competitive prices on domestic and import car parts and auto accessories

Online auto parts stores are skyrocketing in popularity every single day. And lucky for you, finding the perfect fit for your vehicle has become a breeze. Simply provide them with your car’s year, make, and model, and they’ll present you with a wide range of parts that are just right for your ride.

Gone are the days when buying auto parts online meant waiting forever to get your hands on them. Nowadays, these online stores can have the parts shipped to you in a matter of hours or a day or two at most. It’s no wonder that even repair shops are hopping on the bandwagon, considering the unbeatable prices and top-notch quality they offer.

The demand for both regular and performance auto parts at affordable prices has made online purchases a total no-brainer. Plus, if you spend a certain amount, you’ll benefit from fast and free shipping – a total win-win situation.

But wait, there’s more! Online stores cater to more than just those looking for oil filters or exterior components like headlight assemblies. They’ve got you covered with everything from OEM parts to aftermarket options, including car body parts, performance upgrades, or whatever else you may require for your four-wheeled companion.

To stay ahead in the market, online stores go the extra mile by providing guarantees on most of their products. And if a part happens to disappoint, they’ve got a full refund policy in place. So not only can you trust that the parts will fit and function flawlessly, but you can also rest assured knowing that you’re getting the best prices out there compared to their rivals.

Now, if you’re keen on stretching your savings a little further, an auto wrecking yard might just be your secret weapon. Salvage yards stock an impressive array of automotive accessories for all kinds of cars and heavy-duty trucks. Instead of spending a fortune on shipping hefty suspension parts, engines, or transmissions, you can score fantastic deals by finding the part you need locally. Take a peek at the recycling yards in our directory for an even greater value.

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