OEM vs Aftermarket Parts — What Your Repair Estimate Means

OEM, aftermarket, recycled — what your estimate is really saying

Somewhere on every collision estimate is a column describing where each part comes from, and most people never read it. It matters, because it affects fit, finish, resale value and sometimes safety. There are four categories you will see. OEM parts are made by or for the vehicle manufacturer and carry its branding. Aftermarket parts are made by independent manufacturers to fit the same vehicle. Recycled parts are original components taken from another vehicle. Remanufactured parts are used components rebuilt to working condition.

Where each one makes sense

OEM is the safest default for anything that has to fit precisely, carry a sensor or absorb an impact in a designed way. Aftermarket can be perfectly reasonable on straightforward cosmetic parts, and on an older car it may be the difference between repairing and writing off. Recycled OEM is often the best of both on discontinued or expensive panels — a genuine part, at a fraction of the price, with the caveat that condition has to be checked on arrival. The problem is never the category in the abstract; it is a poorly made part in a place where fit matters.

What we look for when a part arrives

Panel gaps and alignment, mounting points that line up without persuasion, correct thickness and profile at the edges, and correct provision for sensors, lights and clips. A bumper cover that needs forcing to sit flush will look wrong for the rest of the car’s life and will keep stressing its mounts. If a part does not meet that standard we say so and go back to the insurer rather than fitting it and hoping.

Your rights in California

California requires that non-original parts used in a repair be identified on the estimate, so you can see what is being fitted before the work happens, and aftermarket crash parts are expected to be at least equal to the original in kind, quality, safety, fit and performance. Read that column. If you want OEM where the insurer has specified aftermarket, you can usually pay the difference; some policies also include OEM parts coverage as an option. Ask before the parts are ordered, not after they are on the car.

In California the choice of repair facility belongs to the vehicle owner. Your insurer may recommend a shop from its network, but you can bring the car here and your claim stays valid. We accept all insurance companies, take the damage photos, speak with the adjuster and file a supplement if hidden damage shows up during disassembly.

Working with a specific carrier? We have pages for GEICO, State Farm, AAA, Progressive, Allstate, Mercury and Farmers, plus a general insurance claims page.

Claim guides: choosing your own body shop in California, what a supplement is, how your deductible works, rental car while your car is in the shop and OEM vs aftermarket parts.

Ask us about your estimate

The Body Shop Collision Repair
12911 Cerise Ave, Hawthorne, CA 90250
Phone: (323) 661-6600
Email: 711body@gmail.com
Mon–Fri 9:00 AM – 7:30 PM · Sat 10:00 AM – 7:00 PM · Sun 11:30 AM – 4:30 PM
After-hours towing and drop-off available — call us.

More detail on the work itself: bumper repair, paintless dent repair, car painting and colour matching, collision and structural repair, motorcycle body repair and a free estimate from photos.

We also look after drivers in Hawthorne, Inglewood, Gardena, Lawndale, El Segundo, Manhattan Beach, Hermosa Beach, Redondo Beach, Torrance, Palos Verdes, Westchester & LAX, Playa del Rey, Playa Vista, Marina del Rey, Culver City, Santa Monica. Full list on our service areas page.

Parts: common questions

What is the difference between OEM and aftermarket parts?

OEM parts are made by or for the vehicle manufacturer. Aftermarket parts are made by independent companies to fit the same vehicle. Recycled parts are original components taken from another car.

Are aftermarket parts safe?

California requires aftermarket crash parts to be at least equal to the original in kind, quality, safety, fit and performance. Quality varies between suppliers in practice, which is why we check fit before anything is painted or fitted.

Will my insurer pay for OEM parts?

It depends on your policy and the age of the car. Many policies specify aftermarket or recycled parts where available. You can often pay the difference to upgrade, and some insurers sell OEM parts coverage as an option.

How do I know which parts are being used on my car?

They are listed on the estimate, and non-original parts must be identified there. Ask us to walk you through the list before the parts are ordered.

Do aftermarket parts affect resale value?

They can, particularly on newer or higher-value cars where a buyer or a dealer inspects the repair history. On an older car the effect is usually small.

What if a part does not fit properly?

We do not fit it. Poor alignment shows for the life of the car, so we go back to the insurer with the evidence and source a part that fits.

Not sure what is on your estimate? Bring it to 12911 Cerise Ave, Hawthorne, or call (323) 661-6600.