Fish & Aquatic

The Best Automotive Replacement Breather Filters

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

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 2008-2021 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!
  • WARRANTY- This 6.7 CCV Filter comes complete with 6 Months warranty.Worry-Free Return And Refund Policy, Buy with Confidence!
SaleNo. 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
  • COMPATIBILITY NOTE: Verify vehicle fitment by entering vehicle information in the part finder stripe to ensure this is the correct filter for your vehicle
No. 3
Proform 141-614 Push-In Filter Air Breather, 1 Pack
  • Trusted industry leader
  • Great performance
  • Highly reliable
  • Efficient
No. 4
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. 5
A-Premium - Crankcase Ventilation Filter Breather Element CCV Filter - Compatible with Dodge Ram...
  • [Vehicle Fitment-1]: Compatible with Dodge Ram 2500 07-10, Ram 3500 07-10, Ram 4500 08-10, Ram 5500 08-10; Compatible with Ram 2500 11-19 21-22, 3500 11-19 21-22, 4500 11-18, 5500 11-18; Compatible with Ford F650 08-13 15, F750 08-13 15; Compatible with...
  • [Vehicle Fitment-2 ]: Compatible with Freightliner 108SD 12-17, B2 08-19, M2 106 08-18, MB Line 08-17, MC Line 08-17, MCL 11 14, MT45 08-18, MT55 08-17, S2 08-09 11, S2C 13-17, XB Line 09 12-15, XB Raised Rail 08, XB Straight Rail 08-18, XBA 15-16, XC...
  • [Vehicle Fitment-3 ]: Compatible with International 4300 14-19, 4300LP 16-19, 7300 16-19, MV607 19-20; Compatible with Thomas Saf-T-Liner 19-20, Transit Liner 19-20; Compatible with Workhorse R26 08-09; Compatible with IC Corporation CE School Bus...
  • [Reference Number]: 68002433AA, 68002433AB, 68002433AC, 5263190, BF43, CY1417669, 4936636, CV52001, 904-418, 904418
  • [Specification]: ① Height: 3 inch;② Thickness: 3 inch; ③ Width: 6.5 inch;④ Mounting Type: Cartridge; ⑤ Materials: Polypropylene & Polymers; ⑥ Number of Inlet Flange: 1; ⑦ Package Contents: 1x Engine Crankcase Breather Element
No. 6
Engine Crankcase Breather Element for Ford Mustang 1970-1985#4vNc
  • Includes 1 (One) Engine Crankcase Breather Element
  • Fits list of vehicles in image gallery fitment chart
  • Exceptional Quality and Performance: This OE replacement engine crankcase breather element is designed to meet, if not exceed, the performance and quality standards of the original equipment installed on your vehicle. Experience the same high-level...
  • Direct Replacement, No Fuss: This OE replacement engine crankcase breather element is meticulously designed for your specific vehicle's make and model, promising a direct fit. Installation is as straightforward as it gets - no fuss, no complications...
  • Perfect Compatibility: Compatibility is key. Make sure to check our product specifications (in image gallery) to confirm that this OE replacement engine crankcase breather element matches your vehicle's requirements. Get the perfect fit and optimal...
SaleNo. 7
12mm Fuel Cell Vent Filter with 8AN (3/4-16) Female Fitting,High Efficiency Fuel Tank Breather/Vent Filter for...
  • Product Specification: You will receive 1pc engine vent filter, size 2.20*1.98*1.98 inch, mounting hole ID 12mm, 1pc female fitting, thread specification 8AN (3/4-16UNF), for most vehicles, check size and thread specification before buying, so as not to...
  • High Efficiency: The precise design of our engine vent filter allows the engine to draw in more air and keep the air flowing smoothly, providing efficient filter to avoid impurities from entering the throttle and maintaining stable engine performance
  • Fuel System Maintenance: Engine vent filter keeps clean and efficient fuel tank vent, keeps air intake system clean and stable, and thus maintains stable system efficiency, essential choice for daily vehicle maintenance, and is recommended to check it and...
  • Durable Material: The filter is mainly made of aluminum alloy, which has high strength and hardness, withstands scratches during use and pressure when the system is working but is not easy to break and damage, is wear-resistant and durable, and maintains...
  • Easy to Install: Turn off the car, let the engine stop working, locate the car engine vent, insert the female fitting into the filter hole, and then insert it into the corresponding position of car vent, package is also equipped with a clamp to make the...
SaleNo. 8
Fleetguard CV52001 OEM Crankcase Ventilation Filter | High Efficiency OCV Breather Element | Replaces Cummins...
  • Verified Multi-Vehicle Fitment: Engineered specifically as a fit for Cummins ISB6.7 engines, providing a precise fit compatible with 2007.5–2023 Dodge Ram 2500, 3500, 4500, and 5500 trucks, as well as select Freightliner, Ford F650/F750, and Blue Bird...
  • Superior Aerosol Filtration: Utilizes high-efficiency coalescer media to trap oil mist and aerosol vapors before they enter the intake system, significantly reducing oil consumption and preventing turbocharger contamination.
  • Professional Grade Engine Protection: Restores optimal crankcase ventilation and engine drivability by eliminating excessive blow-by pressure, which helps protect seals and vital internal engine components from long-term damage.
  • Industrial Strength Construction: Manufactured by Cummins Filtration using premium, oil-resistant materials to serve as a robust alternative to factory hardware in heavy-duty towing and high-mileage commercial operations.
  • Accurate Technical Specifications: Features a 16.38" length and 6.88" width with a verified O-ring seal, making it a direct mechanical replacement for OEM part numbers 4936636 and 68002433AC to maintain emissions compliance.
SaleNo. 9
WIKIBB Valve Cover Breather Filter 18mm Vent Crankcase Breathe Car Accessory for Acura Integra RSX Civic...
  • 【High Quality Materials】 The valve cover breather filter is made of stainless steel and filter paper material. It is not only easy to clean, but also lightweight and durable. Carefully selected materials ensure its long-lasting reliability.
  • 【Function】Valve cover breather filter prevents oil-saturated crankcase vapour from re-entering the engine.
  • 【Compatibility】For Honda Civic Integra RSX K-swap K20 K20A K20Z K24 K-SERIES and Eg Ek Dc2 civic RSX with K-swap K20 K20A K24 with 18mm intake mushroom type valve cover breather filter.
  • 【Easy Install】Valve cover breather filter can be tightly fixed on the car pipeline, easy to install and remove, without complicated installation steps and tools, the product comes with a fixed clip, you can use a screwdriver to adjust it to the...
  • 【Quality Service】If you encounter any problems after purchasing the product, we have professional customer service to solve them for you.
No. 10
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 2026-07-18 / 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.