With sky-high compression ratios, ever-climbing levels of boost, nitrous, and earth’s-core-level combustion heat, competition Diesel engines create an incredibly demanding environment for a piston. Diamond slugs are up to the challenge and have proven themselves in countless pulling, dyno, and drag racing engines. These pistons utilize an incredibly robust billet 2618 forging and some of Diamond’s most innovative coatings. All diesel pistons include type 3 hard anodizing and are available with an additional PTFE treatment to increase lubricity. Available for Cummins, Duramax and Powerstroke engines, all of Diamond’s diesel pistons are forged and machined 100% in the USA and incorporate premium Trend Performance wrist pins.