Shop blower motor relays for heavy-duty truck HVAC systems at All Pro Truck Parts. The blower relay handles the high-current load of the blower motor, especially at high speed — a failed relay can cause an inoperative blower or a blower that won't shut off. We stock replacement blower relays for the most common Class 6 through Class 8 truck platforms.
Visit our help center if you need help finding the right blower relay for your truck.
