MAHLE Piston. FITS: 2006-2014 Cummins 6.7 Liter 24 Valve Dodge Cummins I6 Turbo Diesel Engines VIN code: "A or L" (8th character of VIN#). MAHLE Pistons MAHLE uses Eutectic material so they can install high strength ring-land inserts into the piston grooves for longer life.