Product Description Transmission Temp Sensor #Q21-1002 Fits Kenworth T600 (06-07), T660 (06-07), T800 (87-07) & Peterbilt 379 (87-07)Transmission Temp Sensor #Q21-1002 Fits Kenworth T600 (06-07), T660 (06-07), T800 (87-07) & Peterbilt 379 (87-07)