1994 Ford F250 7.3L V8 VIN: M DIESEL. 1994 Ford F250 7.3L V8 VIN: K DIESEL. 1988-1993 Ford F250 7.3L V8 DIESEL. 1983-1987 Ford F250 6.9L V8 DIESEL. Notes: Molded Coolant Hose. Engineered to resist electrochemical degradation, the leading cause of hose failure.