Best Emission PCV Valve & Breather Grommets of 2026
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Emission PCV Valve and Breather Grommets are essential components of a vehicle's emission control system. The Positive Crankcase Ventilation (PCV) valve regulates the flow of gases from the crankcase to the intake manifold, reducing harmful emissions and preventing oil leaks. Breather grommets, on the other hand, allow fresh air to enter the crankcase, maintaining proper pressure and preventing excess oil consumption. These small but crucial parts can significantly improve the efficiency and performance of a vehicle's emission control system, reducing pollution and ensuring compliance with environmental regulations.
At a Glance: Our Top Picks
Top 10 Emission PCV Valve & Breather Grommets
Dorman 42062 PCV Valve Grommet
The Dorman 42062 PCV Valve Grommet is a durable and reliable replacement part that is designed to match the fit and function of the original grommet on specified vehicles, ensuring the full restoration of part functionality after the original grommet fails. This grommet is made from quality materials and is backed by a team of product experts in the United States, ensuring trustworthy quality. To ensure fit, simply input your make, model, and trim level into the garage tool.
Beck Arnley PCV Valve Grommet
The Beck Arnley 039-6428 PCV Valve Grommet is designed to match OE form, fit, and function for your vehicle. Made of durable rubber material, it offers high quality construction to withstand harsh operating conditions. The grommet is application-specific to ensure a correct fit, providing a secure seal to the valve. This ensures that the PCV valve functions properly, and prevents oil leaks and other engine problems.
Dorman 49929 Airbox Grommet Set
The Dorman Airbox Grommets offer a durable solution to protect your vehicle’s air filter housing by absorbing vibrations that could cause damage. When using this set, you can easily check the fit to ensure you have the right size and quantity for your specific vehicle, saving you time and hassle. These grommets are built to high standards, providing reliable and long-lasting performance you can count on. Plus, with over a century of automotive experience backing the quality, you can trust that this product is designed by experts to meet your needs effectively.
Dorman 42344 PCV Grommet - Direct Replacement, Durable Construction
The Dorman 42344 PCV Grommet is a direct replacement for the original grommet found in specified vehicles. It is designed to restore functionality after the original grommet fails, and is made from quality materials to ensure long service life. The part is trustworthy, backed by a team of experts in the United States and over a century of automotive experience. To ensure a proper fit, input your vehicle's make, model, and trim level into the garage tool.
Dorman 42055 PCV Valve Grommet
The Dorman 42055 PCV Valve Grommet is a high-quality direct replacement for the original grommet on specified vehicles. Made from durable materials, this grommet is designed to fully restore part functionality after the original grommet fails. Backed by a team of product experts in the United States, it ensures trustworthy quality and long service life. To ensure fit, simply input your make, model and trim level into the garage tool.
Dorman 42049 PCV Valve Grommet
The Dorman 42049 PCV Valve Grommet is a direct replacement for the original grommet on specified vehicles that restores functionality after failure. This grommet is made from quality materials to ensure reliable performance and durability. To ensure a perfect fit, input your vehicle's make, model, and trim level into the garage tool. Backed by a team of product experts with over a century of automotive experience, this grommet is trustworthy and long-lasting.
Honkador 5339 PCV Breather Grommet
The Honkador PCV Grommet is a high-quality, two-piece set designed for valve covers with 1-1/4 inch filler-breather holes. Made from durable rubber, it ensures a snug fit, preventing leaks and maintaining optimal engine performance. Installation is straightforward, allowing you to replace your old grommet quickly without hassle. Additionally, this product meets or exceeds OEM standards, providing peace of mind that you're getting a reliable component. Should you encounter any issues, customer service is readily available to assist you.
Dorman 42320 PCV Grommet
The Dorman 42320 PCV Grommet is a durable and high-quality replacement part that can restore the functionality of the original grommet in specified vehicles. Made to fit perfectly, it is constructed with quality materials to ensure reliable performance and a long service life. To ensure a perfect fit, the garage tool can be used by inputting your make, model and trim level. With a trustworthy quality backed by a team of product experts in the United States and over a century of automotive experience, this grommet is an excellent replacement for a failed original one.
Autycle Rubber PCV Breather Grommets
The Autycle Breather Grommets are designed to fit all chrome steel and aftermarket stamped steel valve covers, making them a versatile choice for your vehicle. With an outside diameter of 1 1/4 inches and an inside diameter of 1 inch, these grommets perfectly match valve cover holes and PVC valves. Crafted from thick rubber, they are resistant to heat and oil, ensuring durability and reliability. If you're looking to replace old grommets on your SBC 350, these are an excellent option that will enhance your engine's performance and longevity.
Dorman 42058 PCV Valve Grommet
The Dorman 42058 PCV Valve Grommet is a direct replacement for the original grommet on select Lexus and Toyota models. It is designed to restore functionality and is made from quality materials for reliable performance and durability. The product is backed by a team of product experts in the United States with over a century of automotive experience. To ensure a proper fit, input your vehicle's make, model, and trim level into the garage tool.
Frequently Asked Questions (FAQs)
1. What is a PCV valve grommet?
Rubber breather/PCV grommets are used as a seal between the valve cover and a breather or PCV. ... Fits valve covers with a 1-1/4" diameter push-in hole.
2. What does a PCV valve do on a car?
Essentially, a PCV valve controls emissions — it takes the gases produced by the crankcase and routes them back into your engine's combustion chambers to be safely burned without harming your vehicle or the environment.
3. How to check if PCV valve is bad?
One way to check whether a PCV valve is functioning is to remove it from the hose or tube and shake it. If you can hear a metallic rattling noise, it's likely in good working order. If you do not hear anything when you shake the valve, it is likely that it is no longer opening and closing like it should.
4. Why replace a PCV valve?
The PCV system removes harmful oil vapors from the engine and prevents them from being released into the atmosphere and control the flow of the vapor from the crankcase to the intake manifold. Replacement is considered a maintenance item, so it's important to replace the valve regularly.
During our emission pcv valve & breather grommet research, we found 24 emission pcv valve & breather grommet products and shortlisted 10 quality products. We collected and analyzed 22,353 customer reviews through our big data system to write the emission pcv valve & breather grommets list. We found that most customers choose emission pcv valve & breather grommets with an average price of $6.68.
The emission pcv valve & breather grommets are available for purchase. We have researched hundreds of brands and picked the top brands of emission pcv valve & breather grommets, including Dorman, Beck/Arnley, Honkador, Autycle. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.
Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.