How To Remove Rubber Grommet Plugs and Other FAQ

Reviewed by

Richard McCuistian, ASE Certified Master Automobile Technician

Technical Reviewer at CarParts.com

Written by CarParts.com Research Team - Updated on January 1st, 2025

Reading Time: 4 minutes
Summary
  • Also known as an edging or a bushing, a rubber grommet is a small tube covering a panel hole’s sharp edges. It grips and protects wires, cables, and other components that pass through the hole from snagging on the rough edges.
  • Because they’re highly resistant to temperature, wear, and chemicals, rubber grommets are perfect for automotive use. They’re used to protect spark plug wires, hoses, firewalls, and other components.
  • You’ll have to prepare the necessary tools, let the engine cool, and remove the spark plug wire first to remove the rubber grommet protecting the wire.

What Is a Rubber Grommet?

Also known as an edging or bushing, a rubber grommet refers to a small tube covering a panel hole’s sharp edges. It grips and protects wires, cables, and other components that pass through the hole from snagging on the rough edges. 

Most rubber grommets are made of synthetic rubbers, such as neoprene, nitrile rubber, and silicone. They come in different shapes and sizes, ensuring a perfect fit for a variety of parts.

Pro Tips are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.

Pro Tip: When replacing hood latch cables or working with wire harnesses, always make sure the grommets are properly seated to prevent leaks.

An out-of-place grommet will cause a water leak. | Image Source: Richard McCuistian

What Are Rubber Grommets For?

Because they’re highly resistant to temperature, wear, and chemicals, rubber grommets are perfect for automotive use. Here are some examples:

Electrical Wiring and Hoses

Rubber grommets also protect electrical wiring and fluid hoses from extreme temperatures, moisture, and other contaminants that can cause wear. This helps each part function better as well as extend its lifespan, making rubber grommets a worthy investment.

Other Applications

Other parts that use rubber grommets include firewalls, washer tanks, A-pillars, and fuel pumps. 

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Tips on How To Remove Rubber Grommets

While automotive grommets are specifically designed to be heat resistant, they aren’t invincible. Extreme heat can gradually cause the synthetic rubber material to degrade or melt, leaving your spark plug wire unprotected. If this happens, you’ll have to remove the damaged grommet before replacing it with a new one. Here are some helpful tips:

Prepare the Necessary Tools

You’ll save yourself a lot of time by preparing everything you need beforehand. To remove melted grommets, you’ll likely need a flathead screwdriver and a razor blade. You could also just use your fingers on most bulkhead grommets.

Let the Engine Cool

Tinkering under the hood when the engine’s still hot is a recipe for disaster (tinkering under the dash on the bulkhead, not so much). Even if you wear safety gloves, you can still risk burning your skin. Turn your engine off, and wait until it’s cool enough to touch.

Cut if Necessary

In some cases, you might have to cut the rubber in order to dig it out. Carefully cut it with a razor blade until you can fish it out with your pliers or picks.

Replace Any Damaged Parts

If you notice any other issues, you might have to replace other parts as well. Ask a mechanic to take a look before removing anything else. For example, you might need a new valve cover gasket if there’s an oil leak.

How Much Does a Grommet Replacement Cost?

The exact price will vary depending on several factors, including your vehicle’s year, make, and model. In general, however, rubber grommets are relatively affordable. You can buy high-quality rubber grommets for $10 to $30.

Getting Your Hands on Replacement Grommet Plugs

Grommets play a huge role in increasing the lifespan of your vehicle’s auto parts. They prevent parts from snagging on the edges of holes, protecting wires, cables, and other components. Despite this, it can be tricky to find replacement grommet plugs.

Fortunately, finding high-quality yet affordable replacement grommet plugs designed to work with your vehicle is easy with the help of CarParts.com.

The best part? You won’t even have to step outside your door to shop for auto parts. Simply visit our website, search for the part you need, fill out the vehicle selector, and use the search filters. These steps will help you narrow down our extensive catalog and find compatible plugs that match your preferred brand, price, and specs.

We make it a point to source our grommet plugs from some of the most trusted manufacturers in the industry. Because our warehouses are strategically located all over the US, you can expect to receive your order in as fast as two business days.

Don’t hold off on replacing your grommet plugs. Browse our catalog today!

Reviewed By Richard McCuistian, ASE Certified Master Automobile Technician

Technical Reviewer at CarParts.com

Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.

Written By CarParts.com Research Team

Automotive and Tech Writers

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

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Published by
CarParts.com Research Team and Richard McCuistian, ASE Certified Master Automobile Technician