185 Degree Wire Harness & Relay Kit Price $47.99 Prev Next Product Description 185FH 185 Fan Harness 185FH Fan Harness Kit These relay wiring kits are a must-have when installing an electric fan. Designed to safely integrate with OEM wiring, the kits feature a waterproof 10/40 Amp relay along with printed wires which aid in installation. The kits feature 3/8" NPT (National Pipe Thread) and stainless steel switches with optional switched override capability. Kits are available with or without thermoswitch. 1/2" adapter is included.