OEM Used Auto Parts vs. My Auto Store
OEM Used Auto Parts is one of the most dependable places to buy used OEM car parts online, especially for the components most sellers treat as an afterthought. Its catalog runs across engine computers, climate controls, power window switches, speedometers, radios, keyless fobs, mirrors, lighting and interior trim, alongside engines, transmissions and mechanical assemblies. Every part is sourced from salvage yards across the United States, inspected before it is listed, and backed by a free 90-day warranty that applies to electronics and modules just as it does to mechanical parts. Free shipping to the contiguous 48 states and savings of up to 75% off dealer prices mean the repair costs a fraction of what the dealership would charge.
In comparison, My Auto Store is a large independent recycler based in Camden, New Jersey, holding more than 200,000 parts and offering a six-month part-only warranty. That makes it a strong source for common mechanical parts. However, its policy sells all computers, modules and electrical parts as-is, with no warranty and no option to return or refund them. For anyone replacing an ECU, a body control module, a cluster or a switch, that leaves the buyer carrying the full risk on exactly the parts that cannot be tested until they are installed.
Understanding these differences, including which parts a warranty actually covers, how long you have to return a part, what a return costs and how the part reaches you, is essential before spending money on a used component. Choosing a seller that stands behind electronics as well as mechanical parts protects you from paying twice for the same repair. The comparison table below highlights the key differences between both sellers, helping you decide where to buy your next used OEM car part.
 OEM Used Auto Parts
|
 My Auto Store
|
|
|---|---|---|
| Warranty on computers, modules and electrical parts | Free 90-day warranty | None, sold as-is |
| Returns on electrical parts | ✔ | ✖ |
| Return window | 90 days on most parts | 30 days |
| Restocking fee on non-defective returns | 15% | Up to 25% |
| Parts inspected before sale | ✔ | ✔ |
| Ships to | US and Canada | US only |
What to Look For in a Used OEM Car Parts Store
Buying used parts online saves a significant amount of money, but only when the part fits, works and is backed by a seller who stands behind it. A low price means very little once a part has to be bought a second time. The criteria below separate a reliable store from a risky one.
Warranty coverage by part type: The length of a warranty matters far less than which parts it covers. Many recyclers offer generous cover on mechanical parts while excluding computers, modules and electrical components entirely. Those are the parts most likely to be affected by a trim or software difference, and the ones that cannot be checked until they are installed. A warranty that includes electronics protects you on the purchases where protection counts most.
A return window that fits real repairs: Parts rarely go in the day they arrive. Scheduling a shop, waiting on other components and finishing the installation can easily take several weeks. A longer return window gives you time to confirm the part works in the vehicle rather than racing a deadline, and a lower restocking fee keeps an honest ordering mistake from becoming an expensive one.
Fitment tools before you order: A used part is only a bargain if it matches your vehicle. Look for a seller that lets you search by year, make, model and part number, and that publishes compatibility information or the part number on each product page. Verifying the match before checkout prevents the most common reason used part orders fail.
Inspection and delivered cost: A used component cannot be judged from a photograph, so sellers who inspect every part before listing it remove a large share of the risk. Free shipping matters too, since freight on a heavy part can erase the savings of buying used in the first place. The number worth comparing is the total you pay to get a working part to your door.
Choosing a store that performs well across these areas ensures you get the reliability of a factory part at a fraction of the dealer price. The right source will not just sell you a part. It will stand behind that part until it is working in your vehicle.
Used vs. Aftermarket vs. Remanufactured Parts: Everything You Need To Know
Understanding the difference between part types explains most of the price variation you will see when shopping for a replacement. Each option is built differently, which affects how well it fits, how it performs and what it costs.
Used OEM parts: Original factory components removed from a donor vehicle built to the same specification as yours. Mounting points, connectors and electronics match the original, which makes used OEM the most reliable route to a correct fit at a low price. Condition depends on the donor vehicle, which is why inspection and warranty cover are so important when buying one.
Aftermarket parts: New components made by third-party manufacturers, often designed to cover many vehicles with one part. They can be inexpensive, but fit and finish vary, and on electronics a substitute may not communicate correctly with the vehicle's other systems. A part that almost fits usually costs more in labor than it saves at checkout.
Remanufactured parts: Used cores that have been disassembled, cleaned and rebuilt with new wear components. They offer consistency, but pricing sits much closer to new, and many carry a core charge that is only refunded once you send back your old unit.
For most repairs, especially electronics, interior components, lighting and mirrors, a used OEM part delivers the best balance of fit, function and price. A seller like OEM Used Auto Parts, which inspects its factory parts and backs electronics with the same warranty as everything else, lets you enjoy that value without taking on the risk alone.
Do Used OEM Car Parts Affect Your Vehicle Warranty or Insurance?
No, using used OEM car parts does not void your vehicle warranty or affect your insurance on its own. Under the Magnuson-Moss Warranty Act, a manufacturer cannot void your warranty simply because a part was not bought from a dealer. To deny a claim, it has to prove that the part or its installation actually caused the problem.
Insurance works in much the same way. Insurers regularly specify recycled OEM parts in collision repairs because they restore the vehicle with original components at a lower cost. Buying a used OEM part for your own repair does not usually affect your policy, since insurers care about the vehicle's condition rather than where a part came from. Lease agreements generally accept factory parts too, as long as the vehicle is returned in good working order.
A used OEM part also has an advantage over aftermarket alternatives, because it is a genuine factory component built to the original specification. Keep the invoice, the part number and the receipt for any professional installation, so it is easy to show that a later problem is unrelated to the replacement part. Terms vary between warranties, policies and lease agreements, so check your own documents before a major repair.