Semi Truck HVAC Blower Relays
- gpd®HVAC Relay (1711292)HVAC Relay (1711292) by gpd®. The electrical switch is designed to give feedback to the engine management system. The ECM controls the A/C system on modern vehicles. In earlier vehicles, they are used to directly turn the compressor off...Designed to meet/exceed OE fit, form and functionDurability tested on every new design$10.33
- gpd®HVAC Relay (1711661)HVAC Relay (1711661) by gpd®. The electrical switch is designed to give feedback to the engine management system. The ECM controls the A/C system on modern vehicles. In earlier vehicles, they are used to directly turn the compressor off...Designed to meet/exceed OE fit, form and functionDurability tested on every new design$28.93