OEM vs. Aftermarket Parts: What Every Driver Should Know
Insurance companies love aftermarket parts. Here's when they're a smart choice and when to insist on OEM.
April 22, 2026 · 5 min read
Every collision estimate hides an important choice: OEM (Original Equipment Manufacturer) parts, or aftermarket alternatives. The price gap can be significant — so can the impact on how your vehicle looks, drives, and holds its value.
What OEM actually means
OEM parts are made by (or for) the company that built your car. A GM fender for your Silverado came off the same assembly line as the one it left the factory with. Fit, finish, sensors, and crumple zones behave exactly as engineered.
Where aftermarket makes sense
- Cosmetic trim on an older vehicle you plan to sell soon
- Non-structural pieces like plastic covers or badges
- When a CAPA-certified aftermarket part is available and your car isn't under manufacturer warranty
Where we insist on OEM
- Airbags, sensors, and ADAS (advanced driver-assist) components
- Bumper reinforcements and structural crumple zones
- Late-model vehicles still under factory or extended warranty
- Anything visible on a lease turn-in inspection
Your car was engineered as a system. Save money on the badge; don't save money on the parts designed to keep you alive in the next crash.
Your policy may specify aftermarket parts by default — but most insurers will approve OEM on request, especially for newer vehicles. We handle that conversation for you.