APPLICATION -- For Ford Powerstroke 6.0L & 7.3L (1994-2007), For International VT365 & T444E (1994-2007), For CAT 3126B, 3126E, and C7 (1997-2006). FUNCTION -- Dual purpose test tool kit. No need to remove the IPR valve, and no adapter needed to screw in place of the IPR.