CATERPILLAR-3304-3306-CRANKSHAFT-OIL-SEAL-FRONT

5S9021 is the standard single-lip front crankshaft oil seal for Caterpillar's 3304 and 3306 engines, alongside the double-lip 7C4297 also stocked for this application. Choosing between the two depends on how dusty the operating environment is — the double-lip version costs a little more but holds up better where grit ingress is a real risk. Orange.net.za dispatches this part fast, South Africa-wide.