Enhance engine performance with the 5346429 Lubricating Oil Pump, designed for Cummins 4B3.9, B4.5, ISB, and QSB engines. Compatible with OEM numbers 4939585, 3901384, 3937027, and more for reliable lubrication and long-lasting durability.
Supersedes:4939585 3901384 4937408 3937027 3930336 3926202 3924719 3918211 3280510 3914005 3906413
