There is no OEM rule in Ontario, and that cuts both ways
Nothing in Ontario law says a collision repair has to use parts made by the vehicle’s manufacturer. Nothing says it cannot, either. The standard auto policy lets the insurance company settle the claim with parts of like kind and quality, which in practice means the adjuster can write the estimate for an aftermarket bumper cover, a recycled door from a dismantler, or a reconditioned wheel, as long as the part is comparable to what was damaged. On an older car this is routine.
The words that matter are “like kind and quality”. An aftermarket part that fits badly, is missing mounting tabs, or is thinner than the original is not of like quality, and a shop is entitled to say so and ask the insurance company to write OEM instead. That conversation happens between the shop and the adjuster, with photos of the part on the bench, and it is one we have most weeks.
Newer cars shift the balance on their own. In the first year or two, many insurance companies will write OEM without being asked, because there is no recycled supply yet and aftermarket makers have not caught up. The debate is mostly about cars a few years old, where all four kinds of part exist.
OEM, aftermarket, recycled, reconditioned: what each word means
OEM means the part came from the vehicle manufacturer’s supply chain, in the manufacturer’s box, made to the same specification as the one fitted at the factory. Aftermarket means a part made by another company to fit the same car; quality ranges from excellent to poor, and some are tested by independent bodies while others are not. Recycled, sometimes called used or salvage, is an original part removed from another vehicle of the same model, often an OEM part with some years on it. Reconditioned is a damaged original repaired and refinished for resale, common for wheels and bumper covers.
For a cosmetic panel on a car a few years old, a good aftermarket or recycled part can be a fair choice, and it may be the difference between a repair and a write-off. For anything that does a job in a crash, the calculation changes.
A word about recycled parts and corrosion. A used door from a GTA dismantler has seen the same salt your car has. We check the inner seams and the bottom edge before it goes on, and we send it back if it is not clean, because a rusty recycled panel is not of like quality either.
- OEM: made for the manufacturer, to its specification, in its packaging.
- Aftermarket: made by a third party to fit; quality varies widely.
- Recycled: an original part taken from another car of the same model.
- Reconditioned: a damaged original repaired for resale.
Where we push for OEM, and why
Anywhere a part is part of the safety system, we ask the insurance company for OEM and we say why in writing. Bumper reinforcement bars and absorbers are designed to crush in a specific way; a copy that looks the same may not. Headlamps hold camera and radar brackets and their aim affects driver-assistance systems. Structural sections, airbag components, seat belt hardware and anything the manufacturer’s repair procedure names specifically are OEM by default. The page on whether a repaired car is as safe as before explains what those parts do in a crash.
Fit is the other reason. An aftermarket fender that needs shims and filler to close the gap costs more labour to install than the price difference on the part, and the result is still a car with a visible seam. Where an aftermarket part would need reworking to sit right, we photograph the problem and ask for OEM, and adjusters usually agree, because the labour math is on their side too.
This is advocacy, not a guarantee. The insurance company decides what it will pay for. What we can promise is that the argument gets made, with evidence, every time a non-OEM part would affect safety or fit.
Your rights and your choices on the estimate
You can ask to see the parts on the estimate. Every line lists a part and its type, and the page on reading a collision repair estimate shows where to look. If you want OEM on a line the insurance company wrote as aftermarket, you can request it and pay the difference between the two prices, which on a plastic bumper cover or a mirror is often modest. That is your right whatever the adjuster’s first answer.
You can also ask what the shop recommends and why, and you should. Some aftermarket parts are genuinely fine, and paying for OEM there is money you did not need to spend. Some are not, and the difference matters. Our estimator reads the parts list on every estimate and marks the lines where OEM is worth arguing for. Leased cars are a separate case, because some lease agreements call for OEM parts; the lease-return repair page covers that.
Send the photos and, if you already have one, the insurance company’s estimate. We will go through it line by line, in English or Mandarin, and tell you which parts we would fight for and which are fine as written.
Questions people ask
Can my insurance company force aftermarket parts on me?
It can write the estimate for like-kind-and-quality parts, and that is permitted in Ontario. You can request OEM and pay the difference, and the shop can dispute any aftermarket part that does not meet the like-quality standard.
Are aftermarket parts always worse?
No. Some fit and perform well, especially cosmetic panels and lamps from established makers. The problems are fit, thickness and anything with a crash or sensor role, which is why the choice is line by line rather than all or nothing.
Does a recycled part count as OEM?
It is usually an original manufacturer part, but with age and history. It can be a good choice for a door or a tailgate on an older car; it is inspected for damage and corrosion before it is used.
Do OEM parts come with a warranty?
OEM parts carry the manufacturer’s parts warranty, and our own lifetime warranty covers the paint and refinish on whatever panel is fitted. Ask us to note the part types on your final invoice for your records.