BREATHER - DIFFERENTIAL (CAT CT204-3130)

A damaged differential breather can allow contaminants into the axle housing, leading to premature gear wear. During operation, the breather equalizes internal pressure as the differential heats and cools. This aftermarket replacement part references CAT as the OE maker and cross-references part number CT204-3130. The breather's plain mechanical function is to vent pressure while blocking dirt and moisture. A common failure consequence is that a clogged breather can force oil past seals, causing leaks. Keeping the breather in sound condition helps maintain differential longevity. Verify the serial number or application, then call (562) 693-7748.

Part number variants: CT204-3130, ct204-3130, CT2043130, ct2043130