Ford AX4N Valve Body 1998-2003, RF F8 or RF XF1 Casting#(1 Year Warranty)Updated
The numbers will be RF F4 ,RF F8, or RF XF1. See the RED ARROW above for the Casting Number location. The RF F4 is for years 1994-1998, the RF F8 and RF XF1 valve bodies are for years 1998-2003 and are interchangeable.