Hydraulic Filter Description
This Hydraulic Filter is indexed for Part Number; Caterpillar Loader CAT 966G 950G 962G 972G 966GII Hydraulic Filter 4I-3948; Model: Caterpillar Loader CAT 539 966G 950G 962G 972G 966GII. Compare reference number 4I-3948 against the label on your existing Caterpillar component before ordering.
Before checkout, compare OEM part number 4I-3948, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.




