How Important Are OEM Parts?

OEM stands for “original equipment manufacturer,” and it’s a common designation for parts that might be used during your vehicle’s repair. An OEM part isn’t necessarily made by Ford or GM, though. What it means is that the engineers who designed that car selected the OEM part in your car. They had this particular part in mind during construction, and it is the part they intended to be used throughout the vehicle’s lifetime.


An original equipment manufacturer (OEM) makes the components that are marketed by the client they’re being made for. Car companies may sell the vehicles, but they may not manufacture everything that goes into them. That’s what the OEM does on their behalf.

Does this mean an aftermarket part- often a replacement for a worn out or malfunctioning part currently present in the vehicle- is going to be detrimental to your car? This is entirely a case by case basis depending on the vehicle and the part in question. Just as different brands of cell phone have varying levels of functionality for usage, so do vehicle parts depend on the vehicle and the type of driving being done.

Your mechanic has the experience and knowledge to know what aftermarket parts to avoid and what OEM parts can be replaced without damaging your vehicle’s performance. An assessment at Quanz by one of the ASE qualified mechanics can provide a good idea of what the best options will be for both you and your vehicle. As your vehicle ages, it gains a unique wear due to your driving habits and the road conditions of daily driving. This can change what part would be the best choice for your vehicle, so relying on the idea of ‘OEM is best’ may rob you of improved performance.

Do insurance companies cover OEM parts?

Insurance coverage is one of the necessary aspects of owning a vehicle, and policies vary from company to company. When it comes to repairs, most insurance companies prefer the choice of aftermarket parts over OEM replacements due to cost. Insurance coverage may cover all of an aftermarket part’s cost but require the policy owner to pay the difference in cost for an OEM part. Other insurance companies will refuse to cover OEM parts altogether.

If you’re interested in hearing more about the differences between OEM and aftermarket parts, learning which is the best choice for your vehicle, and getting an assessment of your vehicle’s current state, come in to Quanz and speak to one of our Collision Estimators. Expert advice will let you make the decision right for you and your vehicle.