RockAuto is an online-only auto parts store based in Madison, Wisconsin. It sells replacement parts from hundreds of manufacturers through a catalog organized by vehicle, and it suits DIY mechanics and repair shops who know exactly which part they need and care most about price.

Short answer: yes, RockAuto is a legitimate retailer that has sold parts online since 1999, but its low prices come with trade-offs. Shipping charges can stack up across warehouses, you usually pay your own return shipping, and support runs mostly through email and online forms. We reviewed RockAuto's help pages and recent customer reviews to explain how it works.

RockAuto at a glance

Founded1999
HeadquartersMadison, Wisconsin
Owner/parentRockAuto, LLC, which describes itself as a family business founded by automotive engineers
What it sellsReplacement auto parts, tools and universal parts from hundreds of manufacturers
Shipping (US)Quoted before checkout; a separate charge for each warehouse location; USPS, FedEx, DHL or truck freight
Returns30 days for a refund of the part price; uninstalled, complete and in original packaging; buyer usually pays return shipping
Customer serviceEmail ([email protected]) and the online Order Status & Returns page; orders are placed online only
BBB (as of November 2026)A+, accredited since 2007; 1,189 complaints in the past three years
Trustpilot (as of November 2026)1.8/5 from about 3,500 reviews (unclaimed profile)

Who is RockAuto?

RockAuto says it is an online family business founded in 1999 by automotive engineers. Its stated goals are to free up the parts information that usually sits behind a store counter and to make parts affordable. BBB records list October 1999 as the start date, and the company is headquartered on Normandy Lane in Madison, Wisconsin.

There are no RockAuto stores. The company says that staying strictly online, with no counter staff and little money tied up in slow-moving stock, lets it pass savings on as lower prices. It says it ships parts from hundreds of manufacturers to millions of customers around the world, all sent by common carrier from specialized warehouses.

RockAuto has been BBB-accredited since August 2007. Our searches turned up no reported data breaches or lawsuits involving the company in 2025 or 2026.

What RockAuto sells and how prices compare

The catalog is organized by vehicle, and you can also search by part number or browse tools and universal parts. RockAuto's warranty page lists brands such as Motorcraft, Bosch, Akebono and Gates among many others. Because warranty terms vary by brand, from 30 days to limited lifetime coverage, the brand you pick matters as much as the price.

Payment options are broad: Visa, Mastercard, American Express, Discover and Diners Club cards, PayPal (including its Pay Later and Pay in 4 options), Sezzle payment plans, wire transfers, gift certificates and store credit. RockAuto doesn't accept cash on delivery. The site also has a Promotions & Rebates section.

RockAuto collects sales tax on orders shipped to states where the law requires it, and tax-exempt buyers can check a box at checkout and complete a state exemption form.

How RockAuto's warehouse system works

The most important thing to understand is that a single RockAuto order may ship from several places. Its ordering help page explains that the parts in your cart aren't always stocked at the same location, and when they aren't, you pay a separate shipping charge for each location.

The cart marks items with letters to show which parts can ship together. You can see shipping quotes before checkout by entering your country and ZIP code, with options listed in order of cost. It's worth a few minutes of swapping brands: a slightly pricier part from a warehouse you're already using can work out cheaper than a bargain part that adds a second shipping charge.

The split matters after delivery, too. Once any part of an order ships, you can no longer change the order. Returns go back to a return warehouse that's usually the location the part shipped from, you file one return request per warehouse, and each box needs its own label. When RockAuto supplies the labels, it may deduct the cost of all of them from the first refund it issues.

Shipping and delivery

RockAuto arranges delivery with small-package carriers such as FedEx and DHL and with mail services such as USPS. Mail services can deliver to PO boxes, but private carriers can't. Oversized or heavy items go by truck freight, with an optional liftgate service.

Once you enter your ZIP code, the cart shows "receive by" dates for each shipping method, and most destinations can choose between economy and expedited service. If a package is refused or comes back because of a bad address, RockAuto deducts the return shipping cost from your refund.

Damaged parts and thin packaging come up in recent Trustpilot reviews, so open boxes as soon as they arrive. Damage you spot early is easier to sort out while you're still inside the 30-day return window.

Returns, refunds and warranty

RockAuto says every part it sells can be returned within 30 days for a refund of the part price. The exceptions are opened liquids, such as oil or paint, and gift certificates. Parts must be complete and in their original, unmarked manufacturer's packaging, and RockAuto won't accept parts that have been installed or modified.

A return may not be refundable if the part or its manufacturer's box is damaged in transit, so ship it inside a sturdy outer carton. In most cases, you pay return shipping. RockAuto covers it when the return is due to its own mistake, when the item is defective or has the wrong part number, or when the manufacturer confirms the catalog information was wrong.

Refunds are issued within three business days of the return arriving, to your original card, PayPal or Sezzle account unless you choose store credit. Sales tax is refunded, but import duty never is, and RockAuto says it isn't responsible for any costs beyond the price of the part.

Core charges. If RockAuto charged a core fee on a part, you'll see an Arrange Core Return button when you look up the order. Cores must go back within six months of the purchase date, in the box the new part came in, and you won't get credit for a core that's smashed, rusted solid or otherwise unusable. You usually pay the return shipping, which RockAuto says often costs about as much as shipping the new part did, and the label cost comes out of your core refund.

Warranty. RockAuto doesn't offer a product warranty of its own. After 30 days, a defective part may be covered by the manufacturer's warranty, which provides an exact replacement and is claimed through the Order Status & Returns page. Warranties cover the replacement part only, with no reimbursement for labor or shipping, and they start on delivery.

Terms vary widely by brand. RockAuto's warranty page lists 24 months for most Motorcraft parts, limited lifetime coverage for Gates, 30 days for Bosch wiper parts, and 12 months or 12 months/12,000 miles for many other brands. Coverage applies only to the original buyer and the vehicle the part was listed for.

What customers say

RockAuto's reviews are sharply split. Its unclaimed Trustpilot profile scores 1.8/5 from about 3,500 reviews as of November 2026. Most of those reviews, 69%, are one-star, but 21% are five-star, and the company doesn't reply to reviews there.

The negative reviews cluster around a few themes: no phone support, wrong or poorly packed parts, and returns where buyers paid shipping and got back less than they expected. Recent examples include a buyer who received spark plugs instead of oil filters, another who said two of five brake parts didn't fit, and complaints about tracking that didn't update for days. Happier reviewers mostly mention low prices and fast delivery.

The BBB gives RockAuto an A+ rating. Its profile shows 1,189 complaints in the past three years, 316 of them in the last 12 months, along with 302 customer reviews. Featured BBB reviews mention an unexpected charge, a return of unused parts and frustration over the cost of a brake job.

On wrong parts, the policy line is what matters. If RockAuto's catalog was wrong, it pays return shipping; if you picked the wrong part, you do. Reviewers who paid their own return shipping and received partial refunds show why it pays to double-check fitment before you order.

Pros and cons

Pros

  • Large online catalog, searchable by vehicle or part number.
  • Online-only model built around low prices.
  • Long track record: selling online since 1999 and BBB-accredited since 2007, with a current A+ rating.
  • Shipping quotes and "receive by" dates appear before checkout.
  • 30-day returns on almost everything, with refunds within three business days of arrival.
  • Flexible payment, including PayPal Pay in 4 and Sezzle.

Cons

  • A separate shipping charge for each warehouse location in your order.
  • You pay return shipping unless RockAuto, the part or the catalog is at fault.
  • No returns on installed parts or opened liquids, and packaging must be original and unmarked.
  • Orders are online only, and support runs mainly through email and online forms.
  • Core return shipping can cost about as much as shipping the new part.
  • A 1.8/5 Trustpilot score, with recurring complaints about wrong parts and packaging.

Tips before you order from RockAuto

  1. Confirm fitment before you buy. Match your vehicle's exact year, engine and options, and compare part numbers with your old part if you can, because a part you ordered by mistake means paying your own return shipping.
  2. Watch the warehouse letters in your cart and try to keep parts at one location so you don't pay shipping more than once.
  3. Inspect parts as soon as they arrive, without marking the manufacturer's box, and return anything that doesn't fit before you install it.
  4. Save the new part's box for your core return, and send the core back within six months.
  5. For heavy parts, compare the full cost, including freight and core return shipping, with a local store's price before you buy.
  6. Report problems through the Order Status & Returns page, and keep the tracking number for every box you send back.

Is RockAuto legit? Our verdict

Yes. RockAuto has sold parts online since 1999, holds an A+ BBB rating, and publishes unusually detailed policies. It's a strong choice for experienced DIYers and shops who know exactly what they need, can consolidate orders by warehouse, and are comfortable handling returns online.

It's a weaker fit if you're unsure about fitment, need a part today, or want to talk a problem through on the phone. In those cases, a local chain such as AutoZone or O'Reilly Auto Parts may cost more, but in-store pickup and returns are simpler. CarParts.com is another online store worth comparing.

Visit RockAuto

Sources