Interchange Part Number: 1999 2000 2001 2002 2003 Excursion F250 Super Duty Truck,F350 Super Duty Truck F450 Truck F550 Truck Ford 300-019,F8TZ3A733AA Power Steering Pump Pulley Diesel V8 7.3L Front. Superseded Part Number: 1999 2000 2001 2002 2003 Excursion F250 Super Duty Truck,F350 Super Duty Truck F450 Truck F550 Truck Ford 300-019,F8TZ3A733AA Power Steering Pump Pulley Diesel V8 7.3L Front.