What’s the Difference Between OEM and Aftermarket Parts?

February 5th, 2024 by

The components of your Toyota are built to last for many years. However, at some point or other, they may become overly worn or damaged, and you’ll need to replace them. When it comes time to replace an auto part, you may find yourself facing the dilemma of whether to purchase an original equipment manufacturer (OEM) or aftermarket part. Both options have their pros and cons, which you should carefully weigh before making your final decision. Check out this helpful guide to discover the differences between OEM and aftermarket parts.

What Does OEM Mean?

OEM is a term used to describe auto parts that come from the manufacturer of a vehicle. For instance, OEM Toyota parts are products of Toyota. These parts are precise replicas of the components that were in your vehicle when it left the manufacturing plant. They’re designed to match the specifications of your car make and model, meaning they’re guaranteed to fit. Furthermore, they come with a factory warranty that attests to their quality and reliability.

What Are Aftermarket Parts?

Aftermarket parts are sourced from a third-party manufacturer that didn’t make the original parts of your vehicle. They’re usually generic parts intended for use in multiple models, so they may not be compatible with your car. These parts can vary greatly in terms of quality, and most of them don’t offer any form of warranty coverage.

What Are the Pros and Cons of OEM and Aftermarket Parts?

There are advantages and disadvantages of OEM and aftermarket parts. However, OEM products are often a better choice if you want better value for money in the long run. Let’s look at how OEM and aftermarket parts stack up against each other in the following areas:


OEM parts are specifically manufactured for your car model. They have the same dimensions and function in the same way as the original parts they’re replacing. So, they won’t have a negative impact on your vehicle’s performance or reliability. Aftermarket parts, on the other hand, may not properly fit your vehicle because they’re made with more than one model in mind.


In addition to being compatible with your vehicle, OEM parts are usually higher-quality products compared to their aftermarket counterparts. These parts comply with the stringent quality standards of your car’s manufacturer, and they’re usually made with premium materials and expert craftsmanship. Aftermarket manufacturers aren’t required to conform to any specific requirements, so there’s no guarantee that their products will work as expected or last a long time.


When it comes to warranty, OEM parts are again the winner. These parts typically come with a one-year factory warranty that protects you against manufacturing defects. While your warranty is still in effect, you don’t have to pay for repairs and replacements if the parts fail because of defects in the materials or workmanship. In contrast, many aftermarket parts don’t offer a warranty, so you have to pay the repair costs out of your own pocket if they malfunction or break down soon after you buy them.


Aftermarket parts are generally more affordable than OEM parts, making them a better choice if you want to save money. However, these parts may cost you more down the road because you’ll usually need to replace them more often. Although they’re more expensive, OEM parts can last longer and give you a better overall return on your investment.

Availability and Options

OEM parts are in high demand, so they may take longer to arrive compared to aftermarket parts. However, if your local dealership has a well-stocked parts center, you may be able to get the part you need right away.

Aftermarket parts are usually more readily available as there are plenty of them on the market. They also come in many different variations, giving you more options. When you go down the OEM route, you usually have only one or two options for a particular part. However, this also means that you don’t have to spend so much time researching and comparing products.

Should You Choose OEM or Aftermarket Parts?

Unless you’re on a tight budget and can only afford an aftermarket part, it’s almost always better to choose an OEM part. Since they’re made to align with the specifications of your Toyota model, OEM parts are the parts your vehicle needs to deliver maximum performance, efficiency, and longevity. Being the perfect fit, they won’t cause additional friction or strain on other components of your car.

In contrast, ill-fitting aftermarket parts may not work harmoniously with other parts of your vehicle, which can result in increased wear and tear. While it can save you money up front, installing an aftermarket part can lead to unexpected problems that may cost you a lot more than getting an OEM part in the first place.

OEM parts are generally a safer bet than aftermarket parts, even though they may have a higher initial cost. You may be able to save money on the OEM part you need by taking advantage of the service and parts specials available at your local Toyota dealership.

In addition, OEM parts offer added peace of mind with their manufacturer warranties. You don’t have to worry about paying for repairs for the duration of your warranty. If you purchase an aftermarket part that doesn’t come with a warranty, you have to be prepared to bear the cost of replacing it if it doesn’t fit your vehicle or work as it should.

Get Genuine OEM Toyota Parts at Classic Toyota Today

If you’re looking for OEM Toyota parts in Tyler, Texas, consider stopping by Classic Toyota. Our dealership has a fully stocked parts center that carries one of the most comprehensive inventories of genuine OEM Toyota parts in the Tyler area. Whether you need to change your brake pads, battery, tires, or windshield wipers, we can provide you with top-quality OEM parts that deliver maximum performance and durability. Additionally, we have a wide range of OEM accessories that you can purchase to customize or upgrade your pride and joy. Contact us today to order the Toyota parts you need.

Toyota 4Runner TRD Pro by Jacob Frey 4A is licensed with CC BY 2.0 DEED

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