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Fleetguard · Filtration
CV50633
In stock · ships from Knoxville
The Fleetguard CV50633 is a crankcase ventilation filter element (often called a breather filter) for Cummins ISB, ISX, and ISM diesel engines.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 8 applications
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All confirmed applications for this part number.
Other applications
Other applications
Verify engine serial number and CCV system configuration. Some applications may require a different filter; check against OEM part catalog. The filter is primarily documented for ISX and ISM, but Cummins also lists it for ISB6.7.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 17.
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It uses high-efficiency coalescing media to separate oil mist and aerosols from blow-by gases before they re-enter the intake system, helping to keep the turbocharger, charge air cooler, and intake piping free of oil buildup. Regular replacement maintains proper crankcase pressure, reduces oil consumption, and prevents seal and gasket failures. Typical service intervals range from 1,000 to 1,500 hours or 50,000–67,500 miles, depending on duty cycle.
Part Number: CV50633
CRANK CASE BREATHER FILTER
Dealer: Knox Trailers
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