Rheem Ruud 45 24371 04 Wiring Harness Els PW 17895 Durable Construction: Built to withstand Durable Construction: Built to withstand the constant thermal cycling typical of warehouse and industrial heating applications Extreme Durability: The NEMA 3R steel enclosure is finished with a corrosion resistant coating to withstand harsh environmental conditions The Rheem Ruud 45 24371 04 Wiring Harness is a critical 9 pin to 9 pin OEM replacement designed to provide stable electrical pathways between low voltage controls and high voltage components in Rheem and Ruud residential and light commercial units the 45 24371 04 manages the multi conductor requirements for complex signaling between the thermostat interface and the equipment's internal logic controls