Cummins Piston Ring Set, 4089501

replaces: 4089501, 3631247, 3803533
Fits Piston 3628731

HDP Piston Rings are technically optimized with:

Advanced surface finish utilizing chrome plating, gas nitriding, spray coating and ceramic coating
Superior base material such as gray cast iron, ductile cast iron and stainless steelHigh precision machining

HDP Piston Ring Benefits:

Excellent sealing performance will dramatically reduce blow-by gas and oil consumption.
High anti-wear and breakage performance will assure you a longer part-life span.