Cummins 4BT / 6BT Mechanical Fuel Lift Pump with Hand Primer - New

Application: Mechanical fuel lift / transfer pump for Cummins 4BT 3.9L and 6BT 5.9L diesel engines — marine, industrial, agricultural, and light-truck applications. Features cam-driven plunger, integral two-bolt mounting flange, threaded inlet/outlet ports, and hand primer for bleeding the fuel system. Cross-references include Cummins 3936316, 3904374, 3928143, 4937767, 5334912, and 1106N1-010 (verify against your engine). Condition: New aftermarket unit. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase.