Cummins 3957795 Piston Kit Assembly

The 3957795 piston kit is engineered for Cummins B-series 5.9L diesel engines and Komatsu 6D102 engine applications. It serves as a direct replacement for OEM part numbers 3957795, 3957797, and Komatsu 6735-31-2111, 6738-31-2111. The assembly comprises an aluminum alloy piston body with a nickel-iron ring carrier, wrist pin, piston rings (two compression, one oil control), and circlip retainers. Designed to withstand high combustion pressures and thermal loads in heavy-duty construction machinery operation. Manufactured to OEM specifications for dimensional accuracy, ring groove geometry, and metallurgical integrity.