Cummins ISB, QSB Piston Kit with Rings, Standard, 4955365

Cummins ISB, QSB Piston Kit with Rings - Standard Bore size
Piston Kit includes the following components: 1 qty 4938619 Piston (Standard Bore) 1 qty 4931041 Piston Pin 2 qty 3901706 Piston Pin Retaining Clip 1 qty 4955251 Piston Ring Set
Piston Replaces the following numbers: 4936946, 4938619, 224-3732, 4935932, 4939181, 5336103 Ring Set Replaces the following numbers: 4955251, 4955169, S42140, 4955366
Our pistons are manufactured from special materials like eutectic aluminum, ductile iron and steel alloy. Surface treatments such as anodizing and nitriding are typically used in the ring grooves and crown area for durability. Anti-friction coatings like tinning, phosphate and graphite provide scuff protection during initial engine break in. HDP pistons are designed and manufactured to meet or exceed the most rigorous and stringent specifications.
OEM Cross References: 4376349, 4955365, 4955520, 5257639, 4955337, 4376347