Put the MAHLE 224-3409WR.020 Piston With Rings in the rebuild of your 1994-2003 Ford 7.3L Powerstroke. MAHLE Pistons and Rings are made to meet stringent specifications and give you an OE fit and function. This piston is for use in overbore applications and has a .010" reduced compression height. MAHLE Pistons are only sold in full sets. A quantity of 8 must be ordered.