Repairs & body shops

What should I do if my insurer will not approve OEM parts?

The parts vocabulary

Estimates use shorthand that hides big differences. The main terms:

• OEM (Original Equipment Manufacturer) — a part made by your car's manufacturer, or by the supplier that made the original part for it, sold in the manufacturer's branded box.
• OE (Original Equipment) — a part from the original supplier, generally the same part as the OEM one but sold without the carmaker's branded box. The terms OEM and OE are often used loosely on estimates, so ask which one a line item actually is.
• Aftermarket / non-OEM — a part made by another company to fit your car. It was not made by or for the car's manufacturer, and quality varies by maker.
• LKQ / recycled — LKQ stands for like kind and quality. In practice it usually means a used original part taken from a salvage vehicle, cleaned up and resold.
• Remanufactured — a used part that has been rebuilt to working specification, with worn components replaced, rather than simply reused as removed.

None of these labels alone settles whether a specific part is fine for your car. They tell you where the part came from — the fit, finish, and condition of the individual part still have to be judged on their own.

What actually decides which parts you get

Your policy's parts language comes first. Many auto policies promise to repair your car using parts of like kind and quality — a phrase insurers read as allowing certified aftermarket or recycled parts that match the original part's function and condition, rather than requiring a new part in the manufacturer's box. If your policy carries that language, the insurer declining OEM parts is usually the policy working as written, not an adjuster making an exception of you.

State rules sit on top of the policy. Some states require insurers to disclose non-OEM parts on the estimate, or to get your consent before those parts are used. Those rules vary by state — what must be disclosed, when, and whether consent is required at all — so the version that applies to you is your own state's rule, not a general summary like this one.

One more document can change the answer: your lease or loan agreement. A lease or lender may require OEM parts as a condition of the agreement, separate from anything your insurance policy says. If you lease your car or are still paying on it, check that agreement before accepting a parts decision — and tell the adjuster if it requires OEM.

Your options, in order

1. Ask for the policy basis, in writing. Ask the adjuster to point to the policy language that allows the part being substituted and to put that basis in writing. A decision that has to be written down gets made more carefully, and you now have something concrete to respond to.
2. Have the shop document specific concerns, in writing. If the proposed part has a real problem — fit, finish, or a concern involving a safety system — the shop should document that concern about that specific part, in writing, with photos where they help. A documented problem with one part moves a claim; a general objection to aftermarket parts does not.
3. Decide whether to pay the OEM difference yourself. You can usually choose the OEM part and pay the price difference between it and the part the insurer approved. If you go this route, get the difference in writing before the work starts, so it is a knowing decision rather than a surprise on the final bill.
4. If a required disclosure never happened, raise it. If your state required the non-OEM part to be disclosed or your consent to be given and neither happened, raise that — first with the adjuster's supervisor, and then, if it is not corrected, with a complaint to your state insurance department. That complaint is about the missing disclosure, which is a process failure, not just a parts preference.

When OEM matters most

For many repairs the parts argument is more heat than substance. There are situations where pushing for OEM — or paying the difference — is genuinely worth it:

• Newer vehicles still under factory warranty. Keeping manufacturer parts on a car still covered by its factory warranty keeps the repair record simple if a related warranty question comes up later.
• Safety sensors and driver-assistance systems. Cameras, radar units, and the brackets and panels around them feed systems that need correct positioning and calibration after repair. A part that fits slightly differently matters more here than it does on a plain trim piece.
• Lease returns. If the car goes back to a leasing company at the end of the term, non-OEM parts can become a charge or an argument at turn-in. If your lease requires OEM parts, that requirement — not preference — is the ground to stand on.

Outside those cases, judge the specific part in front of you. A well-made certified aftermarket part, documented on the estimate and installed by a shop you trust, is a normal repair — the normal outcome of the policy most drivers carry.

Frequently asked questions

Can my insurer force me to accept aftermarket parts?

If your policy allows repair with parts of like kind and quality, the insurer can generally base its payment on aftermarket or recycled parts rather than OEM parts. That does not force the part onto your car: you can choose OEM parts and pay the price difference yourself. Rules about disclosing non-OEM parts or getting your consent vary by state, so check what your state requires.

Are aftermarket parts as good as OEM parts?

It depends on the part and the maker. Some aftermarket parts fit and perform well, and certified aftermarket crash parts are tested against industry standards, while others fit poorly or finish differently. The honest answer is part by part, which is why having the shop document concerns about the specific part matters more than arguing about aftermarket parts in general.

Will aftermarket parts void my car's warranty?

Generally, no. Federal warranty law does not let a manufacturer void a whole vehicle warranty just because an aftermarket part was used. A manufacturer can deny a specific warranty claim if the aftermarket part caused the failure, so keep the repair paperwork showing what was installed and where.

Can I pay the difference for OEM parts myself?

Yes, commonly. Ask the shop and the insurer to put the price difference in writing before the work starts, and confirm who is ordering the OEM part and when. Paying the difference is a legitimate choice when it is a clear decision made up front, not a surprise added to the final bill.