PN 30-2065 is a K-Type replacement sensor only. If you need to rewire an existing K-Type thermocouple sensor, PN 30-2066 is a wiring extension harness that includes 10' of wiring, hex nuts, screws and inconel sheath. NOTE: For the most accurate readings using a K-Type thermocouple sensor, see our 8-Channel K-Type EGT CAN Module, PN 30-2224. Includes: K-Type Closed Thermocouple Sensor, 1/8" Compression Fitting & Ring Terminal Harness