Best Emission PCV Valve & Breather Grommets of 2025

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 6, 2025

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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

Honkador 5339 PCV Breather Grommet Cover #TOP 1
Honkador 5339 PCV Breather Grommet
ftb score rating icon 9.8
Dorman 42062 PCV Valve Grommet Cover #TOP 2
Dorman 42062 PCV Valve Grommet
ftb score rating icon 9.7
Dorman 42049 PCV Valve Grommet Cover #TOP 3
Dorman 42049 PCV Valve Grommet
ftb score rating icon 9.5

Top 10 Emission PCV Valve & Breather Grommets

#TOP 1

Honkador 5339 PCV Breather Grommet

Honkador
5339
Black
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, Valve Cover Grommet, 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 2

Dorman 42062 PCV Valve Grommet

42062
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 3

Dorman 42049 PCV Valve Grommet

42049
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 4

Dorman PCV Valve Grommet

42059
1 Count (Pack of 1)
Dorman PCV Valve Grommet Cover
Dorman 42059 PCV Valve Grommet - 0.712 In. ID - 1.293 In. OD - 0.459 In. Thickness Compatible with Select American Motors / Jeep Models

The Dorman PCV Grommet is an essential replacement part designed to fit seamlessly in select American Motors and Jeep models. By restoring the proper function of your vehicle's PCV system, this grommet helps maintain optimal engine performance. Its durable construction ensures that you can rely on it for a long time, reducing the need for frequent replacements. With the backing of experienced automotive experts, you can trust the quality of this grommet. To ensure a perfect fit, simply enter your vehicle's make, model, and trim level into the garage tool.

What We Like
Direct replacement for easy installation
Restores engine functionality
Durable and reliable materials
Expert-backed quality assurance
#TOP 5

Autycle Rubber PCV Breather Grommets

Autycle
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 6

Standard Motor Products GV29 PCV Valve Grommet

GV29
Multi
One Size
Standard Motor Products GV29 PCV Valve Grommet Cover
Standard Motor Products GV29 PCV Valve Grommet

The Standard GV29 PCV Grommet is a crucial component for your vehicle's emission system. Made in China, this grommet measures 1.54 inches in height, 4.79 inches in length, and 2.67 inches in width, making it compact and easy to install. Its precise dimensions ensure a snug fit, preventing leaks and maintaining optimal engine performance. By using this grommet, you can enhance the efficiency of your vehicle's PCV valve system, which helps reduce harmful emissions and promote a cleaner environment. This reliability can give you peace of mind while driving.

What We Like
Compact size for easy installation
Prevents leaks effectively
Enhances engine performance
Reduces harmful emissions
#TOP 7

MDEOOSKY PCV Valve Kit for Dodge Ram

MDEOOSKY
53030017
MDEOOSKY PCV Valve Kit for Dodge Ram Cover
53030017 PCV Valve + Grommet Kit Replacement for Dodge Ram 1500 Dakota Jeep Grand Cherokee 5.2L 5.9L

The MDEOOSKY PCV Valve Kit is designed to replace worn-out parts in various Dodge and Jeep models, ensuring optimal engine performance. This kit fits multiple vehicles, including the 1998-2003 Dodge Durango and 1994-2002 Dodge Ram series. With its specific part numbers, installation becomes easier, allowing you to maintain your vehicle efficiently. The package includes both the PCV valve and grommet, providing everything you need for a complete replacement. By using this kit, you can help reduce emissions and improve engine longevity, making it a smart choice for vehicle maintenance.

What We Like
Easy installation
Improves engine performance
Reduces emissions
Compatible with multiple models
#TOP 8

Dorman 42344 PCV Grommet - Direct Replacement, Durable Construction

42344
Multi
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 9

Dorman PCV Grommet for Oldsmobile/Pontiac

42054
Dorman PCV Grommet for Oldsmobile/Pontiac Cover
Dorman 42054 PCV Grommet - 0.423 In. ID - 1.518 In. OD - 0.772 In. Thickness Compatible with Select Oldsmobile / Pontiac Models

The Dorman PCV Grommet is designed as a direct replacement for your vehicle's original part, ensuring a perfect fit and function. When the original grommet fails, this replacement restores the necessary functionality, helping your engine perform optimally. Made from high-quality materials, it promises durability and long-lasting performance, giving you peace of mind. Moreover, this product is backed by a team of experts with over a century of automotive experience, ensuring that you receive a trustworthy and reliable component for your vehicle. To guarantee compatibility, simply enter your vehicle's details into the garage tool.

What We Like
Direct replacement fit
Restores engine functionality
Durable quality materials
Expert-backed assurance
#TOP 10

Dorman 42055 PCV Valve Grommet

42055
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
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 13,979 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 $6.94.

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 Honkador, Dorman, Autycle, Standard Motor Products, MDEOOSKY. The seller of top 1 product has received honest feedback from 54 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.