1990 Peterbilt 378 A/C Relays, Sensors & Switches
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- UAC®HVAC Blower Control SwitchPeterbilt 378 1990, HVAC Blower Control Switch by UAC®. UAC’s line of electrical components includes the Switches and Relays that are necessary for the proper function of an A/C System. They are produced at top tier facilities with...Helps maintain a desired temperature inside your carMade of durable materials$42.39
- Four Seasons®HVAC System SwitchPeterbilt 378 1990, HVAC System Switch by Four Seasons®. Finish: Metal. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right with...Contains gaskets, o-rings, or seals to properly replace the productColor coded for easy identification$37.74 - $69.69
- Four Seasons®HVAC Harness ConnectorPeterbilt 378 1990, HVAC Harness Connector by Four Seasons®. Type: 2 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it...Molded plastic constructionOE style connectors$7.28