Best Fram Automotive Replacement 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.

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, 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.

REPLACES# CV52001 , 68002433AA 68002433AB 68002433AC , 4936636 , 904-418

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.

Triple chrome-plated steel top and base

Made with pre-dyed synthetic media for lasting color

Includes a stainless steel adjustable clamp

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【Perfect substitute】 The air filter is a perfect replacement for those outdated intake system, give your car a new life.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

Mounting Hole Dia : 12mm/ 0.47"

Universal Fittings For Car Air Intake Piping

Increase engine power and torque outpout

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.

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.

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.

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.

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.

Made from pre-dyed cotton so the color will not fade

Triple chrome-plated steel top and base

Easy to install with no special tools or skills required

ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance

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.

Does not discharge gas into the atmosphere

Completes the flow loop by bringing clean air into the crankcase

Be sure to check your vehicle's owners manual to determine if your vehicle incorporates this filter

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.

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.