Piston and Ring - Cast - 4.055 in Bore - 3.0 x 2.0 x 3.0 mm Ring Groove - Flat - Combustion Chamber - Passenger Side - 6.6 L - GM Duramax - Kit

Piston and Ring - Cast - 4.075 in Bore - 3.0 x 2.0 x 3.0 mm Ring Groove - Flat - Combustion Chamber - Passenger Side - 6.6 L - GM Duramax - Kit

Piston and Ring - Forged - 4.016 in Bore - 3.0 x 2.0 x 3.0 mm Ring Groove - Flat - Combustion Chamber - 5.9 L - Dodge Cummins - Kit

Piston and Ring - Forged - 4.036 in Bore - 3.0 x 2.0 x 3.0 mm Ring Groove - Flat - Combustion Chamber - 5.9 L - Dodge Cummins - Kit

Piston and Ring - Forged - 4.056 in Bore - 3.0 x 2.0 x 3.0 mm Ring Groove - Flat - Combustion Chamber - 5.9 L - Dodge Cummins - Kit

Piston and Ring - Forged - 4.213 in Bore - 3.0 x 2.0 x 3.0 mm Ring Groove - Flat - Combustion Chamber - 6.7 L - Dodge Cummins - Kit