Best Automotive Performance Crankcase Ventilation Filters in 2026

Open Crankcase Ventilation (OCV) protets the engine and provides the best solution for emission removal

Helps reduce oil consumption by eliminating mist, aerosol vapors and oil drip in the engine compartment

Fits Most 6.7L Cummins engines on 2007+ Ram 2500, 3500, 4500 & 5500

Bosch HEPA Premium Cabin Air Filters are designed and tested to meet High Efficiency Particulate Air (HEPA) standards based on ISO 29463-3:2011 and provide filtration efficiency of 99.97% at 0.3 microns

This efficiency provides ultimate protection in trapping particulates that can enter your vehicle and provides the cleanest air possible for you and your family

Melt-blown electrostatic layer and very dense media provide greater trapping capabilities; Additional static cotton layer added to the HEPA media provides higher capacity

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.

Bosch HEPA Premium Cabin Air Filters are designed and tested to meet High Efficiency Particulate Air (HEPA) standards based on ISO 29463-3:2011 and provide filtration efficiency of 99.97% at 0.3 microns

This efficiency provides ultimate protection in trapping particulates that can enter your vehicle and provides the cleanest air possible for you and your family

Melt-blown electrostatic layer and very dense media provide greater trapping capabilities; Additional static cotton layer added to the HEPA media provides higher capacity

CRANKCASE FILTER - if your crankcase breather filter element overhead console displays a message or the mileage has been 67,500 miles apart or your vehicle leaks oil, high idle speed, engine performance declines, etc., a failed crankcase filter might be the problem, it's time to make a replacement.

COMPATIBLE WITH FOLLOWING VEHICLES - Any Vehicle Using Cummins 6.7L ISB Engine | 2007.5-2020 Ram 2500 3500 4500 5500| 2011-2020 Ford F550 F650| 2008-2017 Freightliner MB Line MC Line XC Modular Rail 6.7L & other vehicles with a 6.7-litre ISB engine 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

REPLACES PART NUMBER: CV52001 904-418 904418 4936636 68002433AC 68002433AB Please check the part numbers whether it suits your vehicle before purchasing.

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

Compatible with:Replacement for Ram 2500 3500 4500 5500 6.7L 2007.5-2020 and Any vehicle using the 6.7L ISB Engines.

Cross reference:CV52001,68002433AA,68002433AB,68002433AC,4936636,5263190.

Why this filter is needed:The ISB 6.7L diesel engine employs a closed crankcase ventilation system.If the filter is not serviced,a greasy would be built-up on the compressor wheel.Then lowers the efficiency.

Ideal replacement - this crankcase ventilation filter matches the fit and function of the original equipment filter

Durable construction - this crankcase filter is designed from quality materials for resistance to heat and oil

Cost-effective solution - offers original equipment quality at competitive price

Triple chrome-plated steel top and base

Made with pre-dyed synthetic media for lasting color

Includes a stainless steel adjustable clamp

Ideal replacement - this crankcase ventilation filter matches the fit and function of the original equipment filter

Durable construction - this crankcase filter is designed from quality materials for resistance to heat and oil

Cost-effective solution - offers original equipment quality at competitive price

【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.

【REPLACEMENT】If your vehicle leaks oil, high idle speed, engine performance declines, etc., a failed crankcase filter might be the problem. This ISX15 crankcase breather is manufactured to the OE specification to provide factory-fresh appearance and direct-fit, exactly OEM design to replace your defective filter

【LONG LIFE-SPAN】Long life-span matters, that is why the housing of our cummins ventilation filter is crafted from reinforce material, features high resistance against temperatures and better durability, meanwhile effectively remove oil vapor and restore good driving performance

【REPLACES#】904-7904, 99340, CB57, 3685528, CV50617, CV50634, CV50633. Please make sure the part number before purchase! The Kenworth crankcase element has been tested to ensure trouble-free installation and performance

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.

Fit For: Replacement for Ram 2500 3500 4500 5500 6.7L 2007.5-2020 and Any vehicle using the 6.7L ISB Engines.

Replacement Parts: CV52001,68002433AA,68002433AB,68002433AC,4936636,5263190.

High-quality Materials: The casing of the crankcase ventilation filter is made of reinforced material, which has high durability and long service life. Effectively avoid the accumulation of grease on the compressor impeller, reduce oil consumption, and maintain good driving performance.

▶REPLACES PART NUMBER◀：CV52001,68002433AA,68002433AB,68002433AC,4936636,5263190.

▶COMPATIBLE WITH ◀: This Crankcase Filter Breather Vent Element Replace for Freightliner, Blue Bird, Dodge Ram 2500 3500 4000 4500 5500, Ford F650/750, International Trucks.

▶HIGH-PERFORMANCE◀: this crankcase filter is designed from quality materials for resistance to heat and oil.offers original equipment quality at competitive price.

BMC Filters are constructed using a process called "Full Moulding" developed by the BMC F1 R&D team

BMC air filters are designed and produced to ensure a higher air flow than OEM air filters

The filtering material is composed of a special cotton gauze soaked with low-viscosity oil to give you the best air permeability

BMC Filters are constructed using a process called "Full Moulding" developed by the BMC F1 R&D team

BMC air filters are designed and produced to ensure a higher air flow than OEM air filters

The filtering material is composed of a special cotton gauze soaked with low-viscosity oil to give you the best air permeability

[IDEAL REPLACEMENT] This crankcase ventilation filter matches the fit and function of the original equipment filter.

[DURABLE CONSTRUCTION] This crankcase filter is designed from quality materials for resistance to heat and oil.

[FIT] Fit for 2008-2014 Peterbilt/Volvo/Kenworth Diesel.

【OE Number】FL-2077.

【Fitment】Our crankcase ventilation filter is compatible with Ford F650 F750 6.7L V8 Diesel 2016-2019.

【Features】※The filter can effectively filter oil contaminants and improve engine performance. ※ This crankcase ventilation filter is made of high quality plastic material case, durable, safe and reliable.

HIGH-QUALITY: All CCV Cummins filters are sold after quality inspection, and the quality is superior to OEM. It is made of reinforced glass fiber, which can eliminate impurities and aerosols, making it the best choice for engines to eliminate emissions.

OEM FIT: replace CV5200168002433AA, 68002433AB, 68002433AC, 49366365263190904-418904418. Crankshaft breather filter is applicable to CCV filter 6.7 Cummins diesel ISB engine

REPLACEMENT TIME: It is recommended to drive 67500 miles. Replacing the crankshaft filter will help minimize the oil vapor coating on the turbine compressor impeller, intake passage and intercooler. To maintain optimum engine performance

Bosch HEPA Premium Cabin Air Filters are designed and tested to meet High Efficiency Particulate Air (HEPA) standards based on ISO 29463-3:2011 and provide filtration efficiency of 99.97% at 0.3 microns

This efficiency provides ultimate protection in trapping particulates that can enter your vehicle and provides the cleanest air possible for you and your family

Melt-blown electrostatic layer and very dense media provide greater trapping capabilities; Additional static cotton layer added to the HEPA media provides higher capacity

Compatible with: Replacement for Ram 2500 3500 4500 5500 6.7L 2007.5-2020 and Any vehicle with the 6.7L ISB Engines.

Replace OE number: CV52001, 68002433AA, 68002433AB, 68002433AC, 4936636, 5263190.

Why this filter is needed: The ISB 6.7L diesel engine employs closed crankcase ventilation systems. If the filter is not serviced, a greasy would be built upon the compressor wheel. Then lowers the efficiency.

Compatible with: Replacement for Ram 2500 3500 4500 5500 6.7L 2007.5-2020 and Any vehicle with the 6.7L ISB Engines.

Replace OE number: CV52001, 68002433AA, 68002433AB, 68002433AC, 4936636, 5263190.

Why this filter is needed: The ISB 6.7L diesel engine employs closed crankcase ventilation systems. If the filter is not serviced, a greasy would be built upon the compressor wheel. Then lowers the efficiency.