Best Emission PCV Valve & Breather Grommets of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 9, 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

Dorman 42062 PCV Valve Grommet Cover #TOP 1
Dorman 42062 PCV Valve Grommet
ftb score rating icon 9.8
Beck Arnley PCV Valve Grommet Cover #TOP 2
Beck Arnley PCV Valve Grommet
ftb score rating icon 9.7
Dorman 49929 Airbox Grommet Set Cover #TOP 3
Dorman 49929 Airbox Grommet Set
ftb score rating icon 9.5

Top 10 Emission PCV Valve & Breather Grommets

#TOP 1

Dorman 42062 PCV Valve Grommet

42062
No Color
1 Count (Pack of 1)
Dorman 42062 PCV Valve Grommet Cover
Dorman 42062 PCV Valve Grommet - 0.691 In. ID - 1.191 In. OD - 0.641 In. Thickness Compatible with Select Models

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.

What We Like
Durable and reliable replacement part
Restores full part functionality
Backed by team of product experts
#TOP 2

Beck Arnley PCV Valve Grommet

039-6428
10.8 cubic inches
Beck Arnley PCV Valve Grommet Cover
Beck/Arnley 039-6428 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.

What We Like
Durable rubber material
High-quality construction for durability
Matches OE form, fit, and function
#TOP 3

Dorman 49929 Airbox Grommet Set

49929
Black
Dorman 49929 Airbox Grommet Set Cover
Dorman 49929 Airbox Grommet Assortment Compatible with Select Models, 6 Pack

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.

What We Like
Durable vibration protection
Easy fit verification
Reliable construction
Expert-backed quality
#TOP 4

Dorman 42344 PCV Grommet - Direct Replacement, Durable Construction

42344
Multi
One Size
Dorman 42344 PCV Grommet - Direct Replacement, Durable Construction Cover
Dorman 42344 PCV Valve Mounting Grommet Compatible with Select Models

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.

What We Like
Direct replacement for original grommet
Durable construction for reliable performance and long service life
Backed by team of product experts and over a century of automotive experience
#TOP 5

Dorman 42055 PCV Valve Grommet

42055
No Color
One Size
Dorman 42055 PCV Valve Grommet Cover
Dorman 42055 PCV Valve Grommet - 9776721 In. ID Compatible with Select Models

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.

What We Like
Direct replacement for original grommet
Restores functionality after original grommet fails
Durable construction for reliable performance and long service life
#TOP 6

Dorman 42049 PCV Valve Grommet

42049
No Color
One Size
Dorman 42049 PCV Valve Grommet Cover
Dorman 42049 PCV Valve Grommet - 0.715 In. ID - 1.440 In. OD - 0.493 In. Thickness Compatible with Select Ford / Lincoln / Mercury Models

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.

What We Like
Direct replacement for original grommet
Restores functionality after failure
Durable construction for reliable performance
#TOP 7

Honkador 5339 PCV Breather Grommet

5339
Black
1.315 inches
Honkador 5339 PCV Breather Grommet Cover
5339 PCV Valve Grommet, Rubber PCV Breather Grommets for All Valve Covers with 1-1/4 Inch Filler-Breather Holes, Performance 5339 PCV Breather Grommet, PCV Grommet, (0.75" & 1" I D) 2 Pack

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.

What We Like
High-quality rubber material
Easy installation
Compatible with multiple valve covers
Exceeds OEM standards
#TOP 8

Dorman 42320 PCV Grommet

42320
1 Count (Pack of 1)
Dorman 42320 PCV Grommet Cover
Dorman 42320 PCV Grommet GM - 0.749 In. ID - 1.156 In. OD - 0.962 In. Thickness Compatible with Select Models

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.

What We Like
Direct replacement for the original grommet
Restores functionality of the part after the original grommet fails
Durable and long-lasting construction
#TOP 9

Autycle Rubber PCV Breather Grommets

PC0001
Autycle Rubber PCV Breather Grommets Cover
Autycle Rubber PCV Breather Grommets O.D. 1 1/4" I.D. 1" for Steel Valve Covers SBC BBC SBF BBF 350, 2pcs

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.

What We Like
Universal fit for valve covers
Thick rubber for durability
Easy replacement for old grommets
Resistant to heat and oil
#TOP 10

Dorman 42058 PCV Valve Grommet

42058
Black
Dorman 42058 PCV Valve Grommet Cover
Dorman 42058 PCV Valve Grommet - 0.428 In. ID - 0.983 In. OD - 0.610 In. Thickness Compatible with Select Lexus / Toyota Models

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.

What We Like
Direct replacement for the original grommet
Restores functionality after the original grommet fails
Durable construction for reliable performance and long service life
Buying Guide Image

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.

Editor's Notes

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.

Written by
Robert Reyes Avatar

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.