As you may know, we’ve teamed up with MAHLE Motorsport as of late on our most recent engine build for Project DeadSpool. With the demand of 6.7-Liter Cummins engine builds, MAHLE has expanded their pistons for this engine in the PowerPak Piston kits. See all of the t

Featuring MAHLE’s exclusive M142P alloy because of its high temperature and strength and low expansion characteristics, this PowerPak kit includes German steel pins and a stainless steel Nitride ring set – 1/16-inch, 1/16-inch, and 3/16-inch. The pistons feature a hard anodized top ring groove for added durability and increased longevity, and GRAFAL coating for reduced drag, scuffing friction and cylinder bore wear. For this kit, MAHLE also offers the choice of a thermal barrier crown coating.

The pistons are designed with a modified bowl that mimics the design used in industrial QSB applications. This design reduces erosion issues caused by high pressure, long duration or advanced injection timing.  The pistons feature oversized valve pockets that are 0.200-inch deep allowing up to 1.500-inch intake and a 1.450-inch exhaust valve diameter.  Fully radiused valve pockets reduce stress and fatigue cracking. With a 2.722-inch compression height, the pistons allow for 0.010-inch deck machining while retaining the stock piston protrusion.

For more information about MAHLE Motorsport’s high-performance PowerPak Piston Kit, be sure and check out their website. Stay tuned to Diesel Army for more on the latest in diesel. What pistons are you running in your build? Let us know in the comments below.