Overhaul Kits Description
This Overhaul Kits is indexed for Caterpillar s For: Caterpillar 303.5D 303.5 D CR 303C CR MINI Excavator. Compare reference number 303.5D against the label on your existing Caterpillar component before ordering.
Before checkout, compare OEM part number 303.5D, 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.




