Crankcase Breathers
Crankcase breathers regulate pressure inside the engine crankcase while filtering oil vapors from the ventilation system. Advanced Truck Parts supplies heavy-duty crankcase breather filters used in Cummins, Detroit Diesel, Paccar, Volvo, Mack and other commercial diesel engines.
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What a Crankcase Breather Does
A crankcase breather allows gases that build up inside the engine crankcase to safely vent while separating oil particles from the airflow. This system helps maintain proper crankcase pressure, reduces oil contamination, and prevents excessive engine seal wear.
Common Engines Using Crankcase Breathers
- Cummins ISX, X15 and ISB 6.7 engines
- Detroit Diesel DD13, DD15 and DD16 engines
- Paccar MX-13 and MX-11 engines
- Volvo D11, D13 and D16 engines
- Mack MP7, MP8 and MP10 engines
- Caterpillar C13 and C15 engines
- International A26 engines
Common Signs of a Restricted Crankcase Breather
- Excessive crankcase pressure
- Oil leaks from engine seals
- Oil mist around the breather housing
- Engine ventilation system warning codes
- Reduced engine performance
Verify Fitment Before Ordering
Crankcase breather filters vary depending on the engine platform and crankcase ventilation design. To confirm compatibility provide:
- Engine serial number
- Current breather part number
- Truck VIN number
- Year / Make / Model of truck
- Photos of the breather housing if available
Why Buy Crankcase Breathers from Advanced Truck Parts?
- Fitment verification before purchase
- Competitive pricing on heavy-duty filtration components
- Fast nationwide shipping
- Business account discounts available
- Trusted U.S. commercial truck parts supplier
