Cummins 5346430 Lubricating Oil Pump Assembly

The Cummins 5346430 is a gear-type lubricating oil pump assembly engineered for Cummins B-series diesel engines including 4BT, 6BT, 6BT5.9, 6C8.3, and ISDE variants. Manufactured through precision forging using aluminum alloy housing, this pump delivers consistent oil pressure and flow rates required for heavy-duty engine lubrication systems. Designed as direct OEM replacement for part numbers 3937028, 4939587, 3937404, and related supersessions. The pump is gear-driven from the engine crankshaft or camshaft, providing positive displacement oil delivery to main bearings, rod bearings, and valvetrain components. Compatible with construction machinery, industrial equipment, and on-highway applications utilizing Cummins 5.9L B-series platforms.