MAHLE 4075MDR Motorsport Diesel Piston Ring Set 4.075" Bore GM Duramax

The MAHLE 4075MDR is a high-performance motorsport diesel piston ring set engineered specifically for GM 6.6L Duramax engines. This premium drop-in ring set features a 4.075-inch bore diameter with a three-piece configuration designed for extreme performance and durability in high-output diesel applications.

Ring Specifications:

• Top Ring: 1/16 inch (1.59mm) width
• Second Ring: 2.0mm width
• Oil Ring: 3.0mm width
• Bore Size: 4.075 inches
• Material: High-strength steel construction for diesel applications

Key Features:

• Motorsport-grade construction designed for high cylinder pressures and temperatures
• Steel ring material provides superior durability in forced induction and high-performance applications
• Precision-manufactured to exacting tolerances for optimal sealing and minimal blow-by
• Drop-in design simplifies installation for engine builders
• Compatible with MAHLE forged diesel pistons and aftermarket performance pistons

MAHLE Motorsport is a global leader in performance engine components, backed by over a century of automotive engineering expertise. This ring set is trusted by professional engine builders and racers worldwide for applications requiring exceptional reliability under extreme operating conditions. Ideal for performance rebuilds, racing applications, and high-horsepower Duramax builds.