Mahle MS GM 6.6L Duramax L5P 4.055in Bore 3.898in Stk 6.417in Rod 1.417 Pin -40.6cc 16.0 CR Set of 8

If you're rebuilding the engine in your GM 6.6L Duramax L5P, a solid set of pistons is crucial for reliable performance. This set from Mahle is designed for the 403 cubic inch Duramax engine, offering a well-built option for those looking to restore or enhance their diesel power plant.

These cast performance pistons feature a 4.055-inch bore and are engineered to work with a 3.898-inch stroke and a 6.417-inch connecting rod. The pin diameter is 1.417 inches, and each piston weighs in at approximately 925 grams. With a dish volume of -40.6cc, they achieve a 16.0:1 compression ratio, which is a notable figure for diesel performance. Mahle is a well-known name in engine components, and this set reflects their commitment to providing durable parts for demanding applications.

This set includes eight pistons, enough for a complete engine rebuild. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.