Genuine Cummins 3691476 Maintenance Free Crankcase Breather Insert ISX15 CM871 CM2250 CM2350

aintenance-free crankcase breather insert for external crankcase breather systems and advises the field of a part number change for the existing crankcase breather filter element. The new maintenance-free crankcase breather insert is a direct fit replacement for the existing crankcase breather filter element but does not require a filtration media to function. Reason for Change The maintenance-free crankcase breather insert has been released to eliminate the need for scheduled replacement of the existing crankcase breather filter element and reduce associated maintenance costs. The maintenance-free crankcase breather insert, Part Number 3691476 , is a direct fit replacement of the existing crankcase breather filter element. No changes to the crankcase breather housing are required. Replacement for Fleetguard CV50633 Crankcase Filter that needs changing on a frequent basis.