Best Car Breather Filters in 2026

ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%.

EASY INSTALLATION: Pre-oiled and built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.

SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.

✔【The Great Alternative】: Over time, the crankcase filter can become dirty and restrict airflow, thus limiting the system's ability to relieve pressure. If the pressure is too high, it can cause gaskets and seals to rupture, which can lead to oil leaks, decreased engine life, and other problems.

✔【High quality and special 】: Red crankcase ventilation, novel red housing design, so that the car engine is full of fighting atmosphere, more powerful impact perspective, better driving experience. On the basis of the original black CCV filter, the material and production process is completely upgraded, with a more robust housing and more efficient filter.

✔【Perfect Fit For & Direct Replacement】: CV52001 CCV Filter Breather is available for all vehicles with 6.7L diesel Cummins engines, 2007- 2022 Dodge Ram 2500 3500 4500 5500 6.7L; Cummins ISB6.7 engines 2007 up; Freightliner; Blue Bird; For Ford F650/750 International Trucks. Please check the year/make/model refer to product description carefully to make sure it's fits.

【Replaces Part】CV52001, 68002433AA 68002433AB 68002433AC , 4936636, 904-418.While this is not a genuine OEM part, it is a direct replacement. See below for the full vehicle compatible list.

【Compatible with】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, 2008-2019 Freightliner B2, 2008-2009 Freightliner Cargo/M2, 2008-2013 Freightliner M2 106, 2008-2017 Freightliner MB Line/MC Line, 2011-2014 Freightliner MCL, 2008-2018 Freightliner MT45, 2008-2017 Freightliner MT55.

【Filter replacement interval】The recommended replacement interval for the crankcase ventilation filter is 67,500 miles, or when a message appears on your overhead console to remind you that the crankcase ventilation filter is clogged.

【Direct Replacement】: If your crankcase breather filter element overhead console displays a message or the mileage has been 67,500 miles apart, it is recommended that you replace it in time. The crankcase breathing filter element meets or exceeds the oem standard, has passed the factory test, and is perfectly matched with the original car, and can be installed directly.

【High Quality】: Made of reinforced high-quality material with oil resistance and high heat resistance, long service life. It can effectively remove oil vapor to protect the normal operation of the engine, reduce wear and tear, avoid blockage, improve engine life, and provide you with long-term stable and excellent performance

【Fit For】: All vehicles equipped with 6.7L Diesel Cummins Engines | Dodge Ram 2007.5-2020 2500 3500 4500 5500 | 08-09 Freightliner Cargo/M2 | 08-17 Freightliner XC Straight Rail/XC Modular Rail/MT55/MB Line/MC Line | 08-18  Freightliner XB Straight Rail/XC Raised Rail/MT45 | 08-19 Freightliner B2 | 08-13 Freightliner M2 106 | 13-17 Freightliner S2C | 12-15 Freightliner XB Line | 11-17 Freightliner XC Lowered Rail | 12-17 Freightliner 108SD | 11-20 Ford 450 550 | Please see below for more

Mounting Hole Dia : 12mm/ 0.47"

Increase engine power and torque outpout

Contructed with high quality material to ensure filtration efficiency

14" X 4" Recessed Base Super Flow Washable Air Cleaner

Chrome steel recessed base trim

Fits 4 barrel carburetor with 5 1/8" opening

Mounting Hole Dia : 12mm/ 0.47"

Universal Fittings For Car Air Intake Piping

Increase engine power and torque outpout

【Perfect substitute】 The air filter is a perfect replacement for those outdated intake system, give your car a new life.

【More air】 Help with more air flowing into the engine machine to improve throttle response and enhance horsepower.

【increase power】 The filter will improve overall air filtration, horse power, torque and gas mileage over stock filters.

Mounting Hole Dia : 12mm/ 0.47"

Increase engine power and torque outpout

Contructed with high quality material to ensure filtration efficiency

【Perfect substitute】 The air filter is a perfect replacement for those outdated intake system, give your car a new life.

【More air】 Help with more air flowing into the engine machine to improve throttle response and enhance horsepower.

【increase power】 The filter will improve overall air filtration, horse power, torque and gas mileage over stock filters.

Easy Installation: Built with a simple clamp-on design

Package includes: Air Filter and Clamp

Shell Color: Red and Black

weideer 100% Brand New, High Performance Air Filter

Mounting Hole Dia:12mm/ 0.47",Size:50 x 58mm/1.96 x 2.28in

Function:The car air cleaner is installed in front of the carburetor or intake pipe to filter out dust and sand particles in the air, ensures that enough clean air enters the cylinder.

【COMPATIBLE WITH】This air filter fit for most universal car and vehicles with 23mm air intake.

【PREMIUM MATERIAL】The Car Air Filter is made of metal, filter paper and rubber material. Easy to clean, lightweight and durable.

【FUNCTION】The car air filter can increase the intake air flow, filter the impurities in the air.Reduce the resistance of the engine air intake, and improve per unit time air intake and volumetric efficiency when engine running.

Exclusive Ziptie Loop for mounting to frame - no loose hoses

【Size】Mounting Hole Dia:12mm/ 0.47", Size:50 x 58mm/1.96 x 2.28in.

【Function】The air cleaner is mainly filter out dust and sand particles in the air, ensures that enough clean air enters the cylinder. It is washable and will last the lifetime of your engine.

【Improve】The filter will improve overall air filtration, horse power, torque and gas mileage over stock filters.

Universal Fittings For Car/Motorcycle Air Intake Piping.

The filter will improve overall air filtration, horse power, torque and gas mileage over stock filters.

Mounting Hole Dia : 12mm/ 0.47 inches

REPLACE PART NUMBER: 2530029, 9999999. Please check the part number and pictures to verify this is the part you need.

THE BEST PRICE & QUALITY: Reasonable price with OEM quality, saves your money from car dealership.

EASY INSTALLATION: Direct replacement for a proper fit and easy installation, meets or exceeds OEM standards, 100% tested before shipping.

APPLICABLE GEARBOX TYPES: MT/manual gearboxes are available in red, blue, silver and black. Inner Diameter: Approx. 13mm/0.5". Outer Diameter: Approx. 50mm/2 inches. Applicable gearbox type: MT/manual gearbox.

EXCELLENT FUNCTION: The car air filter can increase the intake air flow, filter the impurities in the air, make the engine breathe more smoothly, prevent the dust suspended in the air from being sucked into the cylinder, and reduce the wear of the piston group and the cylinder.

UNIQUE DESIGN: The unique shape reduces the intake resistance of the engine and improves the intake volume and volumetric efficiency per unit time when the engine is running. Before installing in the carburetor or intake pipe, filter dust and sand from the air to ensure enough clean air enters the cylinder.

【 Increase horsepower】: The breather filter is designed to boost engine horse power significantly, increase engine power and torque outpout, the car air filter prevents abrasive particulate matter from entering the engine's cylinders to ultimately increase horsepower and improve the gas mileage

【Universal Air Filter】 : The breather filter for vehicles with 13mm air intakes, for most Off-road Motorcycle ATV Quad Dirt Pit Bike. High flow replacement car intake filter designed to fit perfectly in your stock airbox

【High Flow Intake Air Filter】: Air induction efficiency drastically improved with excellent filtration can reduce the resistance of the engine air intake, and improve per unit time air intake and volumetric efficiency when engine running

❤️Working principle: increase the intake air flow, filter the impurities in the air, make the engine breathe more smoothly, prevent the dust suspended in the air from being sucked into the cylinder, and reduce the wear of the piston group and the cylinder.

❤️Unique shape: The unique shape of air intake reduces the resistance of the engine's air intake, and improves the amount of air intake and volumetric efficiency per unit time when the engine is running.

❤️Professional tools: cold air intake is installed in front of the carburetor or intake pipe to filter out dust and sand in the air and ensure that there is enough clean air to enter the cylinder.

FITMENT—fit for go kart engine mini bike predator 212cc 196cc 6.5hp 7HP GX160 GX200 Coleman CT200U BT200X KT196 CT200U-ex RB200 Hensim MB200 Baja Warrior MB200 universal for car and motorcycle.

HIGH PERFORMANCE—it's predator 212cc filter jet kit.The filter will improve overall filtration and can filter out dust and dirt, so that let the carburetor to produce more horsepower and smooth running.And the kit included two air filters of different size.

UNIQUE DESIGN AND EASY TO INSTALL —the filter breather not only has a unique and novel design, but also helps with more air flowing into the engine machine. And it is very easy to install and high efficiency.

【Perfect Substitute】 The air filter is a perfect replacement for those outdated intake system, give your car a new life.

【More Air】 Help with more air flowing into the engine machine to improve throttle response and enhance horsepower.

【Increase Power】 The filter will improve overall air filtration, horse power, torque and gas mileage over stock filters.

【Small to fit】Mounting hole diameter 12mm / 0.47 inch. Small body is easy to be installed, just bolt on the machine directly, then it will work

【Easy installation】Built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.

【Universal fit】If your connector outer diameter is 12mm will fit, adjustable with clamp.

【Function】Replacement passes the state inspection to remove the oil vapor in the crankcase gas and restore the drivability. The crankcase filter plays an extremely important role in balancing the crankcase pressure in different operating stages of the engine.

【Replace OEM】High Quality Crankcase Breather Filter Replacement CV52001, 68002433AA, 68002433AB, 68002433AC, 4936636, 5263190, 904-904-418、904418。

【Suitable for Vehicle Mounting】Also suitable for 2008-2018 Freightliner XB Straight Rail; 2011-2017 Freightliner XC Lower Rail; 2008-2017 Freightliner XC Modular Rail; 2008-2018 Freightliner XC Raised Rail; 2008-2017 Freightliner XC Straight Rail; 2014 -2019 International 4300, 2016-2019 International 7300/4300LP, 2019-2020 International MV607.

Increase the intake air flow and reduce the wear of the piston group and cylinder.

Unique shape reduces the resistance of the engine intake air, improves the intake air volume and volumetric efficiency per unit time when the engine is running.

Installed in front of the carburetor or intake pipe to filter out dust and sand particles in the air , ensures that enough clean air enters the cylinder.

Material: The upgrade accessories are mainly made of aluminum alloy, with beautiful colors on the surface, which is very cool.

High precision: It has precision machining, modee weight, corrosion resistance and high mechanical strength.

Upgrade accessories: Upgrade accessories are suitable for maintenance and update, strong toughness, and good -fall performance. It is washable and will last the lifetime of your engine.