Are Aftermarket Engine Mounts Worth It? Your Guide

Are Aftermarket Engine Mounts Worth It?

Your car’s engine is the heart of the vehicle, and its engine mounts play a crucial role in keeping it stable and comfortable. These often-overlooked components isolate the engine’s vibrations and noise from the rest of the car. When they wear out, you’ll notice a significant difference in your driving experience. This leads many car owners to consider replacing their old mounts with new ones, and often, the question arises: are aftermarket engine mounts worth the investment compared to OEM (Original Equipment Manufacturer) parts?

The answer isn’t a simple yes or no. It depends on your priorities, driving style, and budget. Aftermarket options can range from direct replacements that mimic OEM quality to performance-oriented mounts designed for enthusiasts. Understanding the differences and benefits will help you make an informed decision.

What Do Engine Mounts Do?

Engine mounts, also known as engine supports or motor mounts, are essentially rubber or polyurethane cushions that secure your engine to the car’s chassis. Their primary functions are:

• Vibration Isolation: Engines produce constant vibrations due to combustion and the movement of internal parts. Engine mounts absorb these vibrations, preventing them from reaching the cabin and causing discomfort.
• Noise Reduction: By dampening vibrations, engine mounts also help reduce the noise transmitted from the engine to the passengers.
• Engine Support: They hold the heavy engine in place, ensuring it doesn’t shift or move excessively during acceleration, braking, or cornering.
• Alignment: Proper engine mounts help maintain the engine’s alignment within the engine bay, which is crucial for the smooth operation of other connected components like the exhaust system and drivetrain.

When engine mounts fail, typically due to age, heat, or stress, they can crack, tear, or become excessively soft. This leads to noticeable symptoms like increased engine noise, vibrations felt throughout the car, clunking sounds when shifting gears, and even a sagging engine.

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Oem Vs. Aftermarket Engine Mounts

When it comes to replacing engine mounts, you have two main choices: OEM and aftermarket.

OEM Engine Mounts: These are parts made by or for the car manufacturer. They are designed to meet the original specifications and performance standards of your specific vehicle model.

• Pros: Perfect fit, designed for original ride comfort and noise levels, reliable quality.
• Cons: Generally more expensive, may not offer any performance upgrade.

Aftermarket Engine Mounts: These are parts made by companies other than the car manufacturer. The quality and design can vary widely.

• Pros: Can be more affordable, offer a wider range of performance options (stiffer mounts for better handling), readily available.
• Cons: Quality can be inconsistent, some performance mounts can increase cabin noise and vibration, fitment might not always be as precise as OEM.

When Are Aftermarket Engine Mounts A Good Choice?

Aftermarket engine mounts can be an excellent value, especially in certain scenarios.

1. Budget-conscious Replacements

Often, aftermarket engine mounts are priced lower than their OEM counterparts. If your primary goal is to replace worn-out mounts without breaking the bank, a reputable aftermarket brand can offer significant savings. Many aftermarket manufacturers focus on producing reliable, direct-fit replacements that restore your car’s original comfort levels.

2. Performance Driving And Enthusiasts

For drivers who prioritize handling and a more connected feel to their vehicle, aftermarket performance engine mounts are a popular upgrade. These mounts are typically made from harder polyurethane or solid aluminum instead of rubber.

• Benefits:
• Reduced Engine Flex: Stiffer mounts limit the engine’s movement under load, leading to more direct power transfer to the wheels. This can improve throttle response and acceleration.
• Improved Handling: Less engine movement means less weight transfer and a more stable chassis during cornering.
• Better Gear Shifting: For manual transmissions, stiffer mounts can lead to crisper, more positive gear changes.

In my experience, upgrading to stiffer mounts on a sports car transformed the driving feel. The car felt more agile, and the connection between the gas pedal and the road was noticeably more immediate. However, this came with a trade-off.

Pro Tip: Performance mounts significantly increase NVH (Noise, Vibration, and Harshness). Be prepared for more engine noise and vibrations to enter the cabin, especially at idle and during acceleration. This is a common characteristic of performance-oriented parts.

3. Restoring Older Or Classic Vehicles

When restoring an older car, finding genuine OEM parts can be difficult and expensive. Aftermarket manufacturers often fill this gap by producing high-quality replacements that meet or exceed original specifications. This allows owners to maintain the vehicle’s integrity and driving characteristics without compromising on availability or cost.

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When To Stick With Oem Or High-quality Equivalents

While aftermarket options are appealing, there are times when sticking closer to OEM specifications is the better choice.

1. Prioritizing Original Comfort And Quietness

If your car is a daily driver and your main concern is maintaining the original ride comfort and quiet cabin environment, OEM mounts are usually the best bet. They are specifically engineered to absorb maximum vibration and noise. Aftermarket performance mounts, even those marketed as “comfort” versions, can still introduce a noticeable increase in NVH.

2. Vehicles With Complex Drivetrains Or Advanced Features

Some modern vehicles, especially luxury cars or those with complex hybrid or electric powertrains, have highly sophisticated engine mounts. These might include active damping systems or vacuum-assisted designs. Replicating the exact function of these complex OEM mounts with aftermarket parts can be challenging.

In such cases, sticking with OEM or very high-quality OEM equivalents is often recommended to avoid issues with electronic systems or overall vehicle performance.

3. Durability Concerns With Cheap Aftermarket Parts

The market is flooded with extremely cheap aftermarket parts. While tempting, these often use lower-quality materials and may not last as long as OEM or reputable aftermarket brands. Investing in a cheap part that fails prematurely can lead to further damage and ultimately cost more in the long run.

Always research the brand and read reviews before purchasing budget aftermarket mounts.

Material Differences: Rubber Vs. Polyurethane Vs. Solid

The material of the engine mount significantly impacts its performance and feel.

• Rubber: This is the standard material for OEM mounts. It offers excellent vibration and noise dampening. However, it degrades over time due to heat and stress, becoming less effective and eventually failing.
• Polyurethane: This is a common material for aftermarket mounts. It’s more durable and resistant to heat and chemicals than rubber. Polyurethane mounts come in various durometers (hardness levels). Softer polyurethane can offer a good balance of improved support and acceptable NVH, while harder polyurethane significantly reduces movement but increases NVH.
• Solid (Aluminum/Steel): These mounts have no dampening material. They offer maximum rigidity and eliminate engine movement entirely. They are typically used in dedicated race cars where comfort is not a concern.

Here’s a general comparison of how these materials affect performance:

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Installation Considerations

Replacing engine mounts is a moderately difficult DIY job. It often requires supporting the engine with a jack and block of wood, unbolting the old mounts, and carefully lowering the engine to allow for removal. Reinstallation requires precise alignment.