Home The Long Haul Blog Replacement Truck Parts: Aftermarket Vs. OEM

Replacement Truck Parts: Aftermarket vs. OEM

February 20, 2025 Parts Author: Rush Truck Centers Read Time: 4.5 Mins

Whether you're a fleet manager, truck owner or a truck driver, buying replacement truck parts is one of the most important decisions in keeping your vehicle running smoothly. 

When you get to the part counter or order online, you’ll typically have two options: aftermarket parts and original equipment manufacturer (OEM) parts. Each option has its own benefits and drawbacks that can impact your truck's performance, longevity and overall cost. So, how do you choose the best option for your needs? 

We’re here to help. Let’s look at the key differences between aftermarket and OEM parts, the pros and cons of each, and how to choose the best fit for your truck and its application. 

What Are OEM Truck Parts?

OEM truck parts come from your vehicle's original manufacturer. These parts are designed specifically for your truck model, ensuring a perfect fit and compatibility. 

Because these parts come straight from the manufacturer, they’re produced under very strict quality controls and guidelines. This is very important for critical systems, such as the engine, transmission and braking systems.

Pros of OEM Truck Parts

Quality Assurance

OEM parts have built-in quality assurance built. Since the original manufacturer produces these parts, they use exact specifications that guarantee good performance. This includes using the same materials and manufacturing processes as the original components. 

OEM truck parts tend to perform better and last longer, reducing the need for frequent replacements and repairs. 

Warranty Protection

Another major benefit of using OEM parts is warranty protection. Many manufacturers require owners to use OEM parts to maintain the truck’s warranty.

If a part fails because of a manufacturing defect, the manufacturer is more likely to cover the cost. OEM parts also increase resale value because prospective buyers often prefer vehicles with original parts.

Cons of OEM Parts

Higher Cost

The quality assurance of OEM parts, of course, comes with a price. OEM parts are generally more expensive than their aftermarket counterparts, meaning repairs can be very costly.

The costs can add up quickly, especially if multiple parts need replacing — even if you’re only bringing your truck in for routine maintenance. This price tag makes OEM parts less practical if you need to prioritize cost over quality, particularly for non-critical components.

Limited Availability

OEM parts aren’t always available, especially for older truck models or discontinued parts. This can lead to repair delays, which can have a ripple effect and lead to extended downtime. 

We all know that downtime is costly, so if you're unable to quickly source an OEM part, waiting for a replacement can hurt your bottom line.

When to Choose OEM Parts

OEM parts are a good option if you need reliable, high-quality replacements for critical truck components. We’d suggest taking advantage of OEM parts if your vehicle is still under warranty or if you want to ensure the longevity of systems critical to the truck’s performance.

For example, if you're replacing a part that directly affects your truck's safety and operation, such as brakes or steering components, OEM parts are the best choice. Specifically designed parts in these scenarios provide peace of mind that often outweighs the additional cost.

OEM parts can also save you money in the long run. Since these parts tend to last longer and perform better, you may find that you spend less on repairs and replacements over time. This is particularly important for fleet owners, as OEM parts will help minimize repairs and downtime.

What Are Aftermarket Truck Parts?

Aftermarket truck parts are made by third-party manufacturers and designed to fit various makes and models. They often provide a more affordable alternative to OEM parts, ranging from basic replacements to high-performance upgrades. 

The aftermarket industry has grown significantly because many aftermarket manufacturers specialize in making parts that improve performance. For example, you can easily find upgraded exhaust systems or enhanced suspension components that enable you to customize your truck to fit your performance needs. 

Pros of Aftermarket Truck Parts

Cost-effective

One of the most noteworthy benefits of aftermarket parts is their cost-effectiveness. Aftermarket parts are usually more affordable than OEM parts, allowing you to keep maintenance and repair costs down.

Variety

The aftermarket offers a wide range of part options, making it ideal if you’re looking for specific features or enhancements. This flexibility lets you better customize your vehicles to suit your operational requirements or personal preferences.

Cons of Aftermarket Parts

Variable Quality

Quality can vary greatly from one manufacturer to the next. While some are high-quality, others may not meet the same quality levels as OEM parts, leading to issues down the line. Low-quality parts can result in premature wear, and may even compromise your safety and performance.

To avoid this, make sure you do your research and choose reputable aftermarket brands.

Warranty Concerns

Many manufacturers require the use of OEM parts to maintain warranty coverage. If you install an aftermarket truck part, you could end up paying for repairs that would otherwise be covered. 

This is particularly important for new vehicles or those still under warranty, as the cost of repairs can be substantial.

When to Choose Aftermarket Parts

Aftermarket parts are a good option if you need more affordable parts, especially for noncritical components. For example, aftermarket options can save you money on floor mats or body panels that don't affect the truck's core functionality. They’re also the go-to choice for performance upgrades, such as enhanced braking systems or modified exhausts. 

Aftermarket parts are also more readily available, making them ideal if you need to avoid the downtime associated with waiting for an OEM part.

Parts Solutions from Rush Truck Centers

Whether you choose OEM or aftermarket truck parts ultimately depends on your specific needs and budget. OEM parts offer reliability and quality while aftermarket parts provide a cost-effective alternative with a broader selection. Considering the above pros and cons, you can choose the option that best suits your application and budgeting needs. 

At Rush Truck Centers, we understand the importance of finding the right replacement truck parts. We stock an extensive inventory of genuine OEM and quality aftermarket components from industry-leading brands. Aftermarket replacement parts from our private-label brands, Rig Tough® Truck Parts and Premium Power Powertrain Parts, are also available at Rush Truck Centers nationwide.

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