Mahle 930036095 Cast PowerPak Piston Set 4.095 Bore for 2001-2016 Duramax 6.6L

Vehicle Fitment

• 2001-2016 Chevrolet/GMC 6.6L Duramax Diesel V8

Fitment Notes

• Sized for a 4.095in bore (.040in over standard)
• Confirm block bore, stroke, and rod length match before ordering

Features

• Complete PowerPak kit - pistons, rings, pins, and locks included
• Cast M142 aluminum construction for high-temperature diesel durability
• Ring carriers made from high-strength austenitic cast iron
• Salt-core cooling channels for improved piston cooling under load
• Mahle Grafal anti-friction skirt coating for optimum performance
• Phosphate dry lubricant coating protects against ring micro-welding and pin galling during break-in
• Low-drag performance rings and ultra-flat ring grooves minimize parasitic drag
• Hand-deburred for quality control

Specifications

• Bore: 4.095in (.040in Over Standard)
• Stroke: 3.898in
• Rod Length: 6.417in
• Compression Height: 1.956in
• Pin Diameter: 1.358in (34.5mm)
• Pin Style: Floating, Steel
• Crown Volume: -40.7cc (Dish, No Valve Reliefs)
• Compression Ratio: 17.0:1
• Material: Cast M142 Aluminum
• Ring Thickness: 3.0mm / 2.0mm / 3.0mm
• Quantity: Set of 8

Included Components

• 8x Mahle Cast PowerPak Pistons (4.095in Bore)
• 8x Piston Pins
• 8x Sets of Piston Rings
• Wire Lock Retainers

Product Description

The Mahle 930036095 is a complete PowerPak piston kit built for the 2001-2016 GM 6.6L Duramax diesel, sized for a 4.095in bore (.040in over standard). This race-proven assembly includes hand-deburred cast M142 aluminum pistons along with high-quality steel pins, round wire locks, and low-drag performance rings - everything needed for a complete piston replacement in one kit.

Built for the demanding conditions of diesel performance applications, these pistons feature ring carriers made from high-strength austenitic cast iron and salt-core cooling channels for improved heat management under heavy load. Mahle's proprietary Grafal anti-friction coating on the piston skirts reduces drag, while a phosphate dry lubricant coating protects against ring micro-welding and pin galling during initial startup and break-in - combining to help unlock meaningful, measurable horsepower gains over stock pistons.

With a 17.0:1 compression ratio and -40.7cc dish design, this piston set is well suited to Duramax owners rebuilding or upgrading their 6.6L for improved performance and durability. Mahle backs the kit with a 1-year warranty against defects in materials and workmanship.