Vehicle Compatibility: Turbo O-ring fits for Ford 7.3L Powerstroke Diesel Engines 1994-2003; for Ford E350/E350 Super Duty 8 Cyl 7.3L 1994-2003, for Ford Econoline Super Duty 8 Cyl 7.3L 1997-1999, for Ford F Super Duty 8 Cyl 7.3L 1994-1997, for Ford F250 8 Cyl 7.3L 1994-1996, for Ford F250 Super Duty 8 Cyl 7.3L 1999-2003, for Ford F350 8 Cyl 7.3L 1994-1997, for Ford F350 Super Duty 8 Cyl 7.3L 1999-2003, for Ford F450 Super Duty 8 Cyl 7.3L 1999-2003, for Ford F550 Super Duty 8 Cyl 7.3L 1999-2003