Maximize Your Ride: Arizona Auto OEM Endorsement Benefits

By Jim Kreisman

Auto insurance can feel complicated, and OEM endorsements are one of those details most drivers overlook until it matters. An OEM (Original Equipment Manufacturer) endorsement changes how your repairs are handled after a crash — prioritizing factory-made parts that match your vehicle’s original specs. Below, we’ll explain what an OEM endorsement is, the real benefits it provides, and the steps to secure it in Arizona so you can make confident choices about repairs, safety, and resale value.

An OEM endorsement is an amendment to a standard Arizona auto policy that requires covered repairs to use original manufacturer parts. In practice, this means repairs should restore your vehicle to the manufacturer’s specifications rather than relying on third‑party alternatives. That distinction matters for safety, performance, and long‑term value — especially for newer cars or models with complex systems.

Adding this endorsement changes the policy language to specify that OEM parts be used for covered repairs. If you file a claim, the insurer will pay for those factory parts instead of cheaper aftermarket options, unless you explicitly agree to a different solution. That protection can bump your premium up slightly, but it helps ensure repairs match the vehicle’s original standards.

OEM endorsements deliver clear, practical advantages, including:

For many Arizona drivers, these benefits justify the endorsement as a sensible safeguard.

OEM and aftermarket parts both repair damage, but they’re not always interchangeable. Differences in manufacturing standards, fit, and performance can have real consequences for how your car drives and protects you.

OEM parts come from the vehicle maker (or its approved suppliers) and are produced to meet the original specifications. Aftermarket parts are made by third parties and can vary in quality. A non‑OEM piece may not align precisely with factory tolerances, which can affect fit, finish, and how safety systems behave after a repair.

Using OEM parts can help preserve manufacturer warranties that depend on approved components and workmanship. Cars restored with factory parts also tend to command higher resale prices, since buyers often see OEM repairs as a sign of proper maintenance and care.

For many Arizona vehicle owners, an OEM endorsement is more than a nicety — it’s a practical choice to protect safety, performance, and long‑term value after a loss.

OEM coverage helps ensure repairs return your vehicle to the manufacturer’s standards. That’s important for structural elements and safety features that rely on precise parts and assembly. When repairs follow factory specs, the car is more likely to perform as intended in future crashes.

Modern vehicles often include ADAS features—like lane‑keeping, adaptive cruise control, and collision avoidance—that depend on calibrated sensors and exact component alignment. OEM parts and proper calibration help those systems operate correctly; using non‑OEM parts can risk misalignment and reduced effectiveness.

The most common types of vehciles owned that take the OEM Endorsement are Porsche, BMW, Mercedes, Audi, Range Rover, and other high end cars. Many vehicle owners want the OEM Glass which is not guaranteed under the normal auto policy. You have to also be careful and read the endorsement before purchasing if the OEM windshield is the goal, because some companies do not include OEM glass in the endorsement.

Knowing the likely costs, who qualifies, and what state law allows can help you decide whether to add OEM coverage to your policy.

Adding an OEM endorsement typically raises premiums in the neighborhood of 10–20%, though the exact amount depends on your carrier, vehicle age, and model. Many insurers offer the endorsement for newer cars or those with higher factory content; check with your provider for specific eligibility rules.

Arizona requires insurers to disclose when aftermarket parts may be used and gives car owners the right to request OEM parts. Insurers can use aftermarket components if you agree or if those parts meet safety and quality standards, so it’s important to understand your rights when negotiating repairs.

Adding an OEM endorsement is usually a simple conversation with your insurer that can prevent uncertainty later. Below are clear steps to follow so you know what to ask and what to expect.

Follow these steps to add OEM coverage:

Taking these steps gives you clarity and helps ensure repairs happen the way you expect.

When you speak with your insurer, consider asking:

Those questions will help you weigh the value of OEM coverage for your particular car and driving needs.

Jim Kreisma is a seasoned insurance expert with over 20 years of experience specializing in auto insurance policies and regulations in Arizona. His deep understanding of vehicle repair standards, OEM parts, and consumer rights helps drivers make informed decisions to protect their investments and safety. Jim is dedicated to demystifying complex insurance topics and empowering consumers with clear, actionable advice.