What is the Difference between OEM & Aftermarket Parts

August 16, 2024 7 min read
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Introduction to OEM and Aftermarket Parts

When getting a vehicle serviced or repaired, you may be allowed to choose between OEM parts and aftermarket parts. Since different parts play a vital role in your vehicle’s functioning, selecting the best is essential.

Therefore, understanding the differences between OEM and Aftermarket parts is essential to choose wisely. The part you choose can significantly impact the vehicle’s longevity, performance, and cost of ownership.

While the vehicle maker manufactures OEM parts, aftermarket parts refer to spare parts produced by a different company. Each option has its pros and cons. Therefore, it is vital to make an informed decision when choosing between OEM and aftermarket parts.

Understanding OEM Parts

Original Equipment Manufacturer parts or OEM Parts are produced and tested by the company that makes the vehicle and are mostly unique to a particular vehicle type. Installed when the car needs a repair, OEM parts guarantee a fit in your vehicle.

Characteristics of OEM Parts

OEM parts are genuine spare parts that are guaranteed to fit into your vehicle and come with industry-standard quality assurance. The following are the characteristics of OEM parts:

  • Compatibility

Since the vehicle creator itself manufactures OEM care spare parts, there is a guarantee of a perfect fit. OEM parts are identical to the parts originally installed in your vehicle and, therefore, perform optimally.

  • High Quality

OEM parts undergo rigorous testing and they match the manufacturer’s standards and specifications. In addition, they last longer due to compatibility with the system, which reduces wear and tear.

  • Warranty Coverage

Manufactured by the original company, the OEM car spare parts come with a warranty from the vehicle manufacturer.

Advantages of OEM Parts

The different advantages of using OEM parts includes:

  • A guaranteed fit since the vehicle’s manufacturers make them.
  • Reliable quality standards and performance that help improve the vehicle’s function and longevity.
  • Easier to select as there is no need to search between different aftermarket car spare parts, therefore eliminating the guesswork. 

Understanding Aftermarket Parts

Manufactured by spare parts companies other than the vehicle manufacturer, aftermarket parts are used as an alternative to OEM parts. Created with a general outline that allows the spare parts to fit into different car models, aftermarket car spare parts are generally cheaper than OEM parts.

Characteristics of Aftermarket Parts

Aftermarket spare parts have the following characteristics:

  • Variety Of Options

Aftermarket spare parts are manufactured by a wide range of companies and in different models, therefore providing a variety of options to choose from.

  • Variable Quality

With aftermarket parts, you can choose between different quality products depending on the usage of your vehicle.

  • Low Cost

Aftermarket parts are generally a cheaper alternative to OEM parts.

  • Broad Compatibility

Since aftermarket parts are made to fit different vehicles, they have a broad compatibility. Therefore, you don’t have to perform extensive research to find an exact match for your car. 

  • Modification Options

The use of aftermarket parts also enables you to customise and modify the spare parts according to your requirements. You can request custom aftermarket parts from the manufacturers to help upgrade your vehicle.

Advantages and Disadvantages of Aftermarket Parts

Since third companies create aftermarket parts, they have different advantages and disadvantages.

Advantages

The different advantages of choosing aftermarket car spare parts include:

  • Lower cost in comparison to OEM parts
  • Wide availability in local auto parts stores
  • Wide variety of choices and upgrades for customization

Disadvantages

Aftermarket parts can have the following disadvantages:

  • Inconsistent quality or lower quality than OEM parts since they are not quality-checked by the car manufacturers
  • Fit issues due to third-party manufacturing
  • Can void vehicle’s warranty and themselves have limited or no warranty

OEM vs. Aftermarket Parts: A Comparison

Both OEM and aftermarket parts have their pros and cons. While aftermarket parts can be used in place of OEM parts, it is best to make an informed decision according to your needs and requirements. 

Following are a few points for OEM vs Aftermarket parts comparison:

  • Quality Assurance

OEM parts come with industry-standard quality checks and have a long warranty. Aftermarket parts, on the other hand, may or may not have a warranty, depending on the manufacturer. In addition, different manufacturers choose varying quality standards for their products. Therefore, it is vital to check the quality of the product you are buying yourself.

  • Price and Value

When it comes to the price, OEM parts are generally more expensive as they have a brand and quality assurance. Aftermarket parts, however, are cheaper and more affordable. This provides a better value for money, especially for those with a lower budget. 

  • Compatibility and Fit

Undoubtedly, by being produced by the original manufacturer, OEM parts are perfectly compatible and fit well with your vehicle. Aftermarket parts can have a good fit with your vehicle, depending on your choice. While they may not offer the same optimal functioning as OEM parts, aftermarket parts provide you with a chance to upgrade and modify the spare part, which can even add to the functioning of the vehicle.

Therefore, the choice between OEM parts and aftermarket parts depends on your vehicle, requirements, and your personal preference. While OEM parts guarantee a precise fit and high quality, they restrict any upgrade on their part.

Aftermarket Car Spare Parts: Considerations for Vehicle Owners

If you choose to use aftermarket car spare parts, it is essential to keep a few things in mind. You must only select high-quality parts and check for the right fit with your vehicle. In addition, only buy from manufacturers who have a good reputation in the market. 

Factors to Consider

A few factors to consider while buying aftermarket parts are:

  • Reviews and ratings of the individual part and the manufacturer
  • Quality and build of the spare part
  • Specifications of the part to ensure that they can work in the vehicle
  • Cost of the spare part according to the materials used

Performance and Warranty

Many aftermarket spare parts can perform well and offer improved durability and performance with modifications. Giving you the option to customise the spare part, aftermarket parts can add to high-performance vehicles. Moreover, if you choose the right manufacturer, you can also get warranty coverage on the spare parts.

Conclusion

The original vehicle company produces Original Equipment Manufacturer parts, while third-party companies manufacture aftermarket spare parts. With both having their advantages and disadvantages, it is vital to make an informed decision when choosing the type of spare part for your vehicle.

OEM parts come with a high quality, warranty, and perfect fit, while aftermarket parts offer customization and lower rates. By selecting a top-rated aftermarket manufacturer, you can get your hands on genuine spare parts that are of high quality and provide an improved performance. 

FAQ’s

  • How do OEM and aftermarket parts differ in quality?

While OEM spare parts have quality assurance as they are produced by the same manufacturer that produces the vehicle, the quality of the aftermarket parts depends on the company you choose.

  • Are OEM parts more expensive than aftermarket parts?

In general, yes, OEM parts are generally more expensive than aftermarket parts due to the manufacturer’s seal of quality and compatibility. 

  • Can aftermarket parts void my vehicle’s warranty?

The use of aftermarket parts can void your vehicle’s warranty, depending on the manufacturer’s specifications. It is best to contact your dealership to check for the rules.

  • Are aftermarket parts compatible with all vehicle makes and models?

Aftermarket parts have been designed to be compatible with a wide range of vehicle makes and models. However, for some cars, they may need to be modified for compatibility. It is best to check for the perfect fit before committing to the aftermarket spare part.

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