Dayco Heater Control Valve DHV5105
Purpose & Function
The Dayco Heater Control Valve is engineered to regulate the flow of coolant to the heater core. In the off position, the heater valve blocks coolant flow to the heater core when no heating is required, and allows flow when heating inside the vehicle is needed.
Quality & Design
Dayco products are the premier brand of automotive power transmission and cooling system components. This heater control valve is part of Dayco's quality aftermarket program targeted at both local and imported vehicles.
Common Issues Addressed
This valve addresses common heater control valve failures including leakage and blocking. Many late model valves made of polymer are prone to cracking when removing heater hoses, making this replacement valve an essential maintenance component.
Activation
The Heater Control Valve is activated either by vacuum control in late model vehicles or by cable control in earlier model vehicles, depending on the specific vehicle application.