OEM vs Aftermarket Ignition Coil – Which One is Better?

When it comes to choosing an ignition coil, the two main options are OEM (Original Equipment Manufacturer) or aftermarket. Both types of coils have their pros and cons and there is no single answer as to which one is better for your vehicle. The best option depends on your situation, budget, and preferences.

OEM coils are manufactured by the original equipment manufacturer (e.g., GM), while aftermarket coils are made by third-party companies that specialize in producing replacement parts for vehicles.

OEM coils tend to be more reliable since they’re designed specifically for a particular make and model of car, while aftermarket models may vary in quality depending on the brand you choose.

Aftermarket coils usually cost less than OEM ones but may not last as long due to lower build quality or design flaws. Ultimately, both types can provide great performance if chosen correctly – it just depends on what you need from your ignition coil!

OEM vs Aftermarket Ignition Coils

When selecting an ignition coil, you have two main options: OEM (Original Equipment Manufacturer) and aftermarket. Each option has its own advantages and disadvantages, so it’s important to understand both before making a decision.

OEM ignition coils are designed to meet the exact specifications of the vehicle manufacturer, which means they usually fit better than aftermarket parts. Additionally, OEM coils often come with a warranty for added protection in the event of failure or defect.

The downside is that these parts can be expensive due to their higher-quality materials and construction techniques. Aftermarket ignition coils provide more flexibility when it comes to the price point but may not always fit as well as an OEM part would.

Additionally, most aftermarket parts don’t come with a warranty so if something goes wrong you could be stuck paying for repairs out-of-pocket.

On the plus side, some aftermarket manufacturers offer performance upgrades such as increased power output or faster response time which could potentially improve your overall driving experience.

Ultimately it depends on what kind of performance you’re looking for from your vehicle – whether or not original equipment is right for you or if an aftermarket alternative will do just fine!

When to Consider OEM?

When deciding between an OEM or aftermarket ignition coil, it’s important to consider the specific requirements of your vehicle. If you have a high-performance engine, an OEM ignition coil is likely your best option as they are designed and manufactured to meet the exact specifications required for that engine.

An OEM part will also provide consistent performance over time due to its durability and reliability. Additionally, if you’re looking for a more cost-effective solution but still want quality results, some OEM parts offer competitive pricing when compared to aftermarket options.

Finally, if there are any recalls on certain components in your car model, using an OEM part could prevent further issues down the road since it was made with original manufacturer specs in mind.

When to Consider Aftermarket?

Aftermarket ignition coils are a viable option for those who want to save money on repairs, as they can be purchased at lower costs than OEM parts. However, it is important to consider when aftermarket parts are appropriate and when you should stick with OEM.

For instance, if your vehicle has a basic engine design that hasn’t been updated in years, then an aftermarket part might suffice. This is because the design of aftermarket parts often closely mirrors the original equipment and functions just as well or better than an OEM part.

If your car has recently undergone any major upgrades or changes, however, it’s best to opt for an OEM coil since these will fit perfectly into the new system.

Additionally, some manufacturers may void their warranty if aftermarket products have been installed instead of genuine parts — so always double-check before making a purchase!

Quality Comparison

The quality of an ignition coil can significantly impact the performance of your vehicle’s engine, so it is important to consider the differences between OEM and aftermarket coils when making a decision.

OEM coils are typically more reliable than aftermarket ones due to their higher build quality, as they are designed and produced by the original manufacturer. Aftermarket parts tend to be less expensive, but this usually comes with a decrease in quality.

OEM vs Aftermarket Ignition Coil

When comparing OEM vs aftermarket ignition coils, there are several factors that you should consider:

  • Durability: An OEM coil will typically last longer than an aftermarket one due to its better construction and materials.
  • Performance: While both types of coils can provide good performance, an OEM coil may offer faster starts and smoother acceleration compared to an aftermarket part.
  • Cost: The cost of replacing or upgrading your ignition coil depends largely on whether you choose an OEM or aftermarket option; however, keep in mind that cheaper does not always mean better value for money!

Cost Comparison

When it comes to OEM vs aftermarket ignition coils, the cost is a big factor. Generally speaking, an OEM coil will be more expensive than an aftermarket one because of the higher quality and reliability that come with it.

An OEM ignition coil is usually designed to last longer and provide better performance than an aftermarket one. However, there are some cases where you may find that an aftermarket coil can save you money in the long run due to its lower initial cost.

If you’re looking for a quick fix or just want something cheaper upfront, then an aftermarket ignition coil could be a good option for your vehicle.

Additionally, if you don’t plan on driving far distances or using your car daily then getting an inexpensive replacement part might make sense financially as well.

Ultimately though, when choosing between these two types of coils it all depends on your budget and what kind of performance level you desire from your vehicle’s engine system.

Pros and Cons of OEM

Original Equipment Manufacturer (OEM) ignition coils are designed to meet the exact specifications of a car’s manufacturer. This means that OEM coils have been made with the same quality as those originally installed in your car, and they provide reliable performance.

They also fit perfectly and are easy to install, so you don’t need to worry about compatibility problems or installation issues. The only downside is that OEM parts can be more expensive than aftermarket ones.

However, many people consider it worth paying extra for peace of mind when it comes to their vehicles’ performance – knowing that an OEM part will work like new every time.

Additionally, since these parts come from the original manufacturer, they often come with warranties and customer service support options if something does go wrong down the line.

Pros and Cons of Aftermarket

Aftermarket ignition coils are a great option for those who want to upgrade their current setup. Aftermarket coils offer improved performance, durability, and efficiency compared to OEM models.

The main benefit of aftermarket ignition coils is that they can increase the power output of your engine, making it more powerful and efficient. Additionally, aftermarket coils have a longer lifespan than OEM models due to their higher-quality materials and construction processes.

On the other hand, there are some drawbacks to using an aftermarket coil over an OEM model. For example, many aftermarket ignition coils require additional modifications in order to fit into the engine properly and work properly with the existing wiring harnesses or plugs.

Furthermore, some aftermarket manufacturers do not provide adequate warranty coverage on their products which could lead to costly repairs if something goes wrong during installation or use.

Finally, because these parts tend to be more expensive than standard parts from major automobile manufacturers, you may find yourself spending more money in order to get better performance out of your vehicle’s system.

What to Look for?

When choosing between an OEM and aftermarket ignition coil, there are several factors you should consider in order to determine which one is best for your vehicle. First, look at the quality of the materials used in each product.

While both coils will use metal components such as copper and aluminum windings, some may be of higher quality than others. Additionally, you should research whether or not the coil has been tested by a third party for performance and reliability.

Next, check out the warranty offered on each product. Generally speaking, OEM parts have longer warranties than aftermarket ones due to their superior build quality and testing standards.

Furthermore, you should also take into consideration how easy it is to install either type of ignition coil — if installation requires more time or special tools that could add extra costs down the line.

Finally, read through customer reviews so you can get a better idea of how well each part functions before making your decision!


In conclusion, it’s clear that the decision between OEM and aftermarket ignition coils comes down to personal preference. If you are looking for a reliable solution with no surprises, then an original equipment manufacturer (OEM) coil is probably your best bet.

These parts tend to be more expensive but offer superior quality and compatibility with other components in the engine system.

On the other hand, if you’re willing to take a risk on an aftermarket part, then you may find yourself able to save money while still getting acceptable performance from your vehicle.

Ultimately, each driver will have different needs when it comes to their car’s ignition coils so make sure you weigh all of your options before making a final purchase decision!