Enginetech RCC403AP Engine Rebuild Kit for 2004-2005 GM Duramax 6.6L VIN 2Enginetech rebuild kits include: Pistons, Piston Rings, Engine Gasket Set, Bearings, & Oil Pump. Engine VIN code 2. Std. Bore Head Gskts. Timing & Exp. Plugs Not Included. Category Part # Sizes Category Part # Sizes Piston Set P5060(8) STD, . 50, 1. 00 Piston Ring Set S40568 STD, . 50, 100 Bearing Set Rod BB145J STD, . 25, . 50 Bearing Set Main BC204J STD, . 25, . 50 Thrust Washer TW204 STD Bearing Set Cam CC435 STD Gasket Set Head GM403HS D Gasket