Mahle MS GM 6.6L Duramax L5P 4.075in Bore 3.898in Stk 6.417in Rod 1.417 Pin -41.2cc 15.9 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 built for the 407 cubic inch engine, featuring a 4.075-inch bore and a 3.898-inch stroke. These cast performance pistons are designed to handle the demands of a powerful diesel engine, offering a 15.9:1 compression ratio for efficient combustion.

Mahle has engineered these pistons with a 6.417-inch rod length and a 1.417-inch pin diameter, ensuring proper fitment and function within the L5P engine. Each piston weighs 942 grams and has a dish volume of -41.2cc, contributing to the overall compression ratio. This set includes all eight pistons needed for a complete engine rebuild, providing a well-built foundation for your Duramax.

It's important to 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 when working on your engine.