Cummins 6BT 5.9 Piston Ring 3802050 3802230 3802421
Piston Ring, Piston Ring Engine Parts, Piston Ring Cummins China Looking to do a re-ring on your 5.9 Cummins? Cummins Rod & Main Bearing Set. Full Set of Standard (STD) Piston Rings. Shop 5.9L ISB Cummins Diesel Engines Standard Piston Ring Set. Piston ring sets for Cummins B Series diesel engines. International shipping available.
Should I replace all piston rings?
Depends on the circumstances, age and mileage. If the engine is in good shape but has overheated, and the oil control rings have lost their tension so the engine is burning oil, then yes this is OK to replace the rings. But you must check the cylinders for wear and rebore with new oversize pistons and rings if excessive wear is present.
5.9 Cummins .020 Oversize Piston Ring Set
CUMMINS 4089181 PISTON RING SET .020 OVER BORE (04.5-07 RAM 5.9L)
CUMMINS 4089258 STD BORE PISTON RING SET (04.5-07 RAM 5.9L)
CUMMINS 4089671 OEM PISTON KIT .040 OVERSIZED (04.5-07 CUMMINS 5.9L)