6.6L Duramax PowerPak Piston Set 4.075 Bore - 930036075

Piston and Ring - PowerPak - Cast - Dish - 4.075 in Bore - 1.951 in Compression Height - 3.0 x 2.0 x 3.0 mm Ring Groove - Minus 40.70 cc - GM Duramax - Kit