The Caterpillar Air Filter 4L-9852 is equivalent to Fleetguard AF332, Baldwin PA618-S.

The Caterpillar Air Filter 131-8821 is equivalent to Fleetguard AF25624, Baldwin RS3737. Part Number:131-8821,1318821 Part Name:Air Filter Brand:Caterpillar

The Caterpillar Air Filter 131-8822 is equivalent to Fleetguard AF25589, Baldwin RS3736. Part Number:131-8822,1318822 Part Name:Air Filter Brand:Caterpillar

The Fleetguard Air Filter AF25598 is equivalent to DONALDSON P549644, BALDWIN-RS3750... Part Number:AF25598 Part Name:Air Filter Brand:Fleetguard