MAHLE Motorsport is thrilled to announce two new POWERPAK Piston Kits for the Duramax L5P, designed specifically for the extreme load of today’s highly boosted direct injected engines.

Backed by over 100 years of performance experience and using MAHLE-manufactured machinery that engineers the piston kit to exacting tolerances, both new POWERPAK kits are made of cast aluminum alloy. The first kit is part number 197987855 delivering a 16.0:1 compression ratio. The second kit is 197987955 and offers 0.075in valve relief pockets with a 15.7:1 compression ratio. These POWERPAK kits are offered in the standard bore size of 4.055in, and oversize bores of 4.075in and 4.095in. All kits come complete with a steel OE style keystone 3.0mm top ring, 2.0mm 2nd ring, and 3.0mm oil ring set, precision CNC machined pin bores, and heavy-duty wrist pins. Each piston features a de-lipped, performance style bowl, a steel top ring land and oil cooling gallery for longevity, and MAHLE’s GRAFAL® skirt coating. For more product details, view MAHLE Motorsport’s Application Guide here.