CP Piston Diesel Set Cummins 5.9L - Bore (4.055in) - CR (15.25) - CH (2.786) w/ Stock Length Rod

CP Pistons offers this diesel piston set specifically for the Cummins 5.9L engine. This set is built to handle the demands of a performance diesel application, featuring a bore size of 4.055 inches and a compression ratio of 15.25:1. The compression height is 2.786 inches, designed to work with stock-length connecting rods, making it a straightforward component for engine rebuilds.

These pistons are constructed from well-built aluminum forgings, a common choice for high-performance diesel pistons due to their strength-to-weight ratio. The forging process creates a dense, strong material that can withstand the high cylinder pressures and temperatures typical of a Cummins 5.9L. CP Pistons is known for its attention to detail in piston design, aiming for durability and performance in demanding engine builds. This set is intended for builders looking to upgrade or replace pistons in their Cummins 5.9L, whether for a heavy-duty work truck or a performance-oriented project.

When installing these pistons, ensure you follow the manufacturer's recommended clearances and lubrication procedures. Proper ring gap setting and piston-to-wall clearance are critical for longevity and performance in a diesel engine. This set is not CARB approved and cannot be shipped to California. Always consult your engine builder or service manual for specific installation guidelines and torque specifications.