AUTOKAY Transmission Governor Pressure Sensor Transducer 4799758 45RFE 545RFE 68RFE Manufacturer Part Number: 4799758 04799758AD Interchange Part Number: TCS78, 5S5389, SU3194, 72-2500, TCS78 Other Part Number: 72415 D72415 44955 20A-419 46053AR 29878 50-1040 This sensor is the external governor pressure transducer. Please refer to compatibility chart below for specified vehicle information and check the part number before purchasing to ensure fitment.