Cummins Piston Body, 3801770

replaces: 3801770, 3801231, 3804414, 3051555, AR11786, AR3530, AR6690, BM91160
Compression Ratio 14.5:1
Fits Piston Cooled Engines Only
Contains:1 qty 3051555 Piston 2 qty 175755 Piston Pin Retainers

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.