Fish & Aquatic

The Best Automotive Replacement Breather Filters

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Ensuring your vehicle's crankcase ventilation system functions optimally is crucial for engine health and longevity. A properly functioning breather filter prevents contaminants from entering the engine while allowing necessary air circulation. Choosing the right replacement breather filter can significantly impact your car's performance and reduce the risk of costly repairs.

No. 1
6.7 Cummins Crankcase Ventilation Filter Replaces# CV52001 68002433AB 4936636 904-418 Fits for 2008-2024 Dodge...
  • REPLACEMENT Crankcase Ventilation Filter -restores drivability.
  • FITMENT - Any Vehicle Using The Cummins 6.7L ISB Engine . 2008-2021 Dodge Ram 2500 3500 4500 5500 , 2008-2015 Ford F650 / F750 , 2008-2018 Blue Bird All American FE/RE, 2008-2018 Blue Bird Vision School Bus, 2012-2017 Freightliner 108SD...
  • REPLACES# CV52001 , 68002433AA 68002433AB 68002433AC , 4936636 , 904-418
  • HIGH QUALITY- Made of High Quality & Durable Material.Tested & certified to meet or exceed OEM quality standards.The price is only a small part of the dealer!
No. 2
WIX 42997 Engine Breather Filter Compatible with Chrysler Family of Cars and Trucks (72-90), Dodge Dakota...
  • PREMIUM ENGINE PROTECTION: WIX Air Filters keep harmful dust away from engine internals and from getting suspended in the engine's lubricating oil
  • PRECISE, ACCURATE SEAL: Constructed with heat-resistant plastisol with specially designed, pliable seals on the top and bottom walls
  • PERFORMANCE AND DURABILITY: Embossed pleats and pleat stabilization beads help the filter trap more dirt, helping engines achieve maximum performance and last longer
  • MAINTENANCE: Engine air filters are critical to the life of an engine and should be regularly replaced as a part of routine maintenance; Refer to your owner's manual for the appropriate service interval
No. 3
Purolator B43127 Breather Filter
  • They are emission control filters
  • Breather traps harmful contaminants
  • Breathers are used in conjunction with the PCV valve
  • Package Dimensions: 14.223 L x 6.096 H x 5.842 W (centimeters)
No. 4
Purolator B44843 Breather Filter
  • They are emission control filters
  • Breather traps harmful contaminants
  • Breathers are used in conjunction with the PCV valve
  • Package Dimensions: 12.7 L x 8.128 H x 8.128 W (centimeters)
No. 5
Calvana 2 Pack 4299 3/4" Push-In Chrome Valve Cover Breather Pro - for Spectre, Steel Construction, Grommet...
  • Premium Construction: Crafted from high-quality steel, the Spectre 3/4 inch Push-in Chrome Valve Cover Breather features a durable chrome-plated housing that not only enhances performance but also adds a sleek look to your engine bay
  • Effective Ventilation: Designed with an internal baffle, this metal watertight breather effectively prevents oil splash while providing superior ventilation, ensuring your engine operates smoothly and efficiently
  • Versatile Fit: This valve cover breather is engineered to fit valve covers with breather holes ranging from 3/4 inch to 1-1/4 inch, making it a versatile choice for a variety of engine configurations
  • Easy Installation: The included grommet ensures a secure and hassle-free installation, allowing you to replace your valve cover filter breather quickly and easily without any special tools
No. 6
RASNONE 12mm Air Filter Cold Air Intake Filter Breather Turbo Vent Air Intake Filter Cleaner Black Universal...
  • 【Perfect substitute】 The air filter is a perfect replacement for those outdated intake system, give your car a new life.
  • 【More air, increase power】 Help with more air flowing into the engine machine to improve throttle response and enhance horsepower. The filter will improve overall air filtration, horse power, torque and gas mileage over stock filters.
  • 【Small body】 This air filter is easy to be installed, just bolt on the machine directly, then it will work.
  • 【Long use time】 Wash the air filter and keep it cleaning; it would last for a long time.
No. 7
BZANPAR Crankcase Ventilation Filter for 2008-2024 Ram 2500 3500 4500 5500
  • [Application]: the crank case filter fits for Cummins 6.7L ISB engine, 2008-2024 Ram 2500 3500 4500 5500, 2008-2015 Ford F750, 2008-2022 Ford F650, 2011-2022 Ford F550, 2008-2017 Freightliner MB Line MC Line XC Modular Rail, other vehicles with...
  • [CCV filter OEM number compatibility]: CV52001, 904-418, 68002433AC, 68002433AA, 68002433AB, 4936636, 904418
  • [Advantage]: BZANPAR crankcase breather filter is made of enhanced high-quality materials, which is oil resistant, heat resistant and corrosion resistant. The premium filter media and technology can effectively filter oil vapor to ensure 6.7 Cummins ISB...
  • [Premium quality]: BZANPAR CCV filter is manufactured according to OE specification. The size of crankcase breather filter is exact and suitable. Every crankcase ventilation filter had been tested extremely
No. 8
Dorman 904-418 Patented Crankcase Ventilation Filter
  • Direct replacement - this engine crankcase breather element is designed to match the fit and function of the original filter on specified vehicles
  • ideal solution - engineered to restore proper breather performance when a breather filter is missing, cracked, or clogged
  • Durable construction - designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
No. 9
Purolator B20009 Breather Filter
  • They are emission control filters
  • Breather traps harmful contaminants
  • Breathers are used in conjunction with the PCV valve
  • Package Dimensions: 10.668 L x 5.842 H x 7.111 W (centimeters)

Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Automotive Replacement Breather Filters

Understanding Breather Filters

Breather filters, also known as PCV (Positive Crankcase Ventilation) filters or breather caps, are small but vital components in your vehicle's emission control system. They allow crankcase gasses to escape, preventing pressure buildup that can lead to oil leaks and engine damage. Simultaneously, they filter incoming air to prevent dirt and debris from entering the crankcase.

Types of Breather Filters

There are generally two main types of breather filters:

  • Stock Replacement Filters: These are designed to be direct replacements for your vehicle's original filter. They match the original specifications in terms of size, flow rate, and filtration efficiency.
  • Performance/Aftermarket Filters: These may offer improved filtration, higher flow rates, or a different aesthetic. They are often used in modified engines or by enthusiasts seeking to optimize engine performance.

Key Features to Consider

When selecting a replacement breather filter, consider the following:

  • Filtration Media: Look for high-quality materials like cotton gauze, foam, or synthetic fibers that effectively trap contaminants without excessively restricting airflow.
  • Fitment: Ensure the filter is compatible with your vehicle's make, model, and year. Check the connection type and size to guarantee a secure fit.
  • Durability: The filter should be constructed from robust materials that can withstand engine temperatures and vibrations. A washable and reusable filter can offer long-term value.
  • Flow Rate: While some performance applications might benefit from higher flow rates, ensure the chosen filter's flow matches your engine's requirements to avoid issues.

Installation and Maintenance Tips

Replacing a breather filter is typically a straightforward DIY task. Locate the existing filter on your engine's crankcase ventilation system and remove it. Install the new filter, ensuring a snug fit to prevent air leaks. Regularly inspect the filter for dirt buildup or damage and clean or replace it according to the manufacturer's recommendations to maintain optimal engine performance.

Frequently Asked Questions

What is the main function of a breather filter?
The primary role of a breather filter is to allow crankcase gasses to escape, preventing pressure buildup that can cause oil leaks. It also filters incoming air to prevent contaminants from entering the engine.
How often should I replace my breather filter?
Replacement intervals vary depending on the filter type and driving conditions. Generally, it's recommended to inspect it every oil change and replace it every 15,000 to 30,000 miles, or as per your vehicle manufacturer's guidelines.
Can a clogged breather filter cause engine problems?
Yes, a clogged breather filter can lead to increased crankcase pressure, potentially causing oil leaks, seal failures, and reduced engine performance. It can also lead to the accumulation of sludge and moisture within the engine.
Are performance breather filters compatible with all vehicles?
Performance filters may not be suitable for all vehicles or engine types. It's essential to check compatibility and ensure the filter's specifications align with your engine's needs to avoid performance issues or potential damage.
What's the difference between a breather filter and an air filter?
An air filter cleans the air entering the engine's combustion chambers, while a breather filter manages the ventilation of the crankcase, allowing gasses to escape and filtered air to enter.
Can I clean and reuse a breather filter?
Many performance breather filters are designed to be washable and reusable. However, always check the manufacturer's instructions. Stock replacement filters are typically designed for single use and should be replaced rather than cleaned.

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