Motor Mount Buyer's Guide
- The motor mount, also known as engine mount, secures the engine and transmission in their proper position.
- There are usually three to four mounts holding the engine and transmission in place.
- Motor mounts have a lifespan of about 5-7 years and may be replaced per piece.
- Failing motor mounts are usually caused by poor installation, factory defects, and normal wear and tear.
- When getting a replacement, you should consider its fitment, features, and material.
- A new motor mount cost can fall anywhere from $33 to $400 at CarParts.com. It can be purchased either by piece or as a set.
Excessive noise when driving can point to several issues with your car, one of which is a problem with your motor mounts. Once any of the installed engine motor mounts start to fail, you risk not only damaging your vehicle but also endangering the lives of your passengers.
This is why it is important to always get your motor mount checked by your mechanic and to be aware of the symptoms that show that it needs replacement. Before looking up those symptoms, you should understand its function first and the usual causes of its failure.
What Is a Motor Mount?
The motor mount, also known as the engine mount, is made to prevent your engine and transmission from moving around the engine compartment. It also absorbs shock and vibration for a smooth drive. Normally, you’ll find three to four-engine mounts securing the engine and transmission.
Possible Reasons for Bad Motor Mounts
There are many reasons that can cause an engine mount to fail. Here are some of the most common causes:
Not being installed the right way
Faulty installation usually happens when trying to replace motor mounts on your own or getting someone to change them for cheap. To avoid failure brought about by improper installation, it is still best to get a licensed auto mechanic to install your engine mounts because they have the right tools and skills for the job.
Being defective right from the start
There are instances when the engine mounts that come with the original assembly have factory defects right from the beginning. Automakers often announce this through a recall notice so keep your eyes out for news pertaining to your vehicle.
Regular wear and tear
Just like any vehicle component, the motor mount is not exempt from failure caused by regular wear and tear. Usually, this manifests through loosening or breaking of the engine mounts. At this point, you shouldn’t put off replacement for long as leaving your engine mount in such a condition can cause extensive damage to your vehicle.
For additional information, you may read our article, "Bad Motor Mount Symptoms".
When to Replace Motor Mounts
Motor mounts usually last for around 5-7 years and only need to be replaced when necessary. Although your vehicle has three to four engine mounts, it is not a must to replace everything in case one of them gets damaged or worn out.
You can choose to just change the faulty mount/s as needed. There are motor mounts sold per piece anyway, so this is a viable option. However, it might be better to change all your engine mounts at the same time so they will all have the same general lifespan.
What to Look for in Replacement Motor Mounts
There are several factors you should consider when getting a motor mount replacement for your ride.
First is its fitment. Its structure and material can differ depending on the make, model, and model year of a vehicle so make sure you are getting the right one.
In relation to this, you should also consider the features. Some mounts have liquid inside to help reduce vibration, while others have vacuum controlled or electromagnetic properties.
Aside from these factors, you must also consider what type of motor mount to buy. There are four general types of motor mounts that are being offered in the market. Each type has its own strong points and drawbacks but picking one that suits your vehicle best entirely depends on your driving needs and your vehicle's requirements. Check out the following:
When it comes to versatility, a resilient motor mount is your best bet. This type features a layer of rubber sandwiched between the motor and mount, effectively reducing the noise and vibration. It's a type that's highly recommended for large motor applications.
If you're looking for a type that can provide better alignment between the motor and other auto mechanisms, then the rigid motor mount is the one for you. However, unlike the resilient motor mount, this one can't be used for larger motors since it may easily get damaged by an excessive amount of vibration. If you're planning to buy a rigid motor, keep in mind that it works best on smaller engines.
When it comes to heavy-duty applications, the hydraulic motor mount is proven to deliver the best performance. Unlike the resilient type, the insulation of this one is made up of glycol or hydraulic gel/liquid, effectively absorbing larger amounts of noise and vibration.
Nema C-face type
A Nema C-face motor mount is usually used as an adapter for vehicles that require a different mounting style. The flexibility of this type far surpasses the other three types of motor mounts; this one may be used in different circumstances where a standard mount won't work.
How Much Is a Motor Mount?
Motor mount replacement sets that consist of both front and rear attachments can cost you around $33 to $400 at CarParts.com. Note that the price of the motor mount is relative to your vehicle’s specs as well as its make.
To get the most suitable part matches for your ride, use the filters or search box above and indicate your vehicle’s year, make, and model. You can even go as specific as identifying its submodel, if applicable.