How to find the right Automotive Replacement Crankcase Ventilation Filters AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Automotive Replacement Crankcase Ventilation Filters
- Engine-specific part
- Buy by OEM part number for the exact engine. Crankcase ventilation (CCV) filters on diesels such as the Cummins in Ram trucks are engine-specific. CCV housings and elements differ in shape and seal design across engines and model years.
- Service interval
- Replace at the interval in the maintenance schedule, which is often tied to oil changes or longer distances on modern diesels. A clogged CCV filter raises crankcase pressure, which can push oil past seals and into the intake.
- Seal and O-ring quality
- Install the new O-rings supplied with the element and lubricate them per instructions. Reusing old O-rings or pinching them during installation is the most common cause of leaks after service.
- Keep the system closed
- Replace the filter rather than deleting the CCV or PCV system on an emissions-controlled vehicle. Deletes are emissions tampering on road vehicles and can cause oil mist under the hood.
Brands that matter
- Fleetguard: OE-source crankcase filters for Cummins engines.
- Mopar: OE parts for Ram trucks, including the CCV filter.
- Donaldson: Heavy-duty crankcase ventilation filters and systems.
- Mann-Filter: OE oil-separator elements for many European engines. ProVent units for heavy duty.
- Racor: Parker brand with aftermarket closed crankcase ventilation filtration systems.
What to avoid
- CCV or PCV 'delete' kits on road vehicles
- Bargain elements without replacement O-rings
- Ignoring oil in the intake tract as a sign of a clogged separator