Heater Control Valve For Toyota 4Runner 1996-1998 L4 3.4L V6 Replace 87240-35050

VEHICLE COMPATIBILITY: for Toyota 4Runner 1996-1998 L4 3.4L V6 Product Specifications: OE Number:87240-35050/87245-35670 Material: Plastic + Metal Color: Black Package Content: 1 pcs Heater Control Valve Heater Control Valve Function: Temperature Regulation: Controls the flow of coolant to adjust the heating intensity of the HVAC system. When temperatures are low, the valve opens to allow hot water into the heater core, raising cabin temperature. When temperatures are high, the valve closes to prevent overheating. Defrosting & Defogging: During humid seasons (winter/spring), it facilitates warm air flow to reduce frost or fog on windows, improving driving safety. Durable Construction: The Heater Control Valve is made of heat-resistant stainless steel, ensuring reliable operation under high-temperature conditions for good control of engine coolant flow. Potential Failure Symptoms: Inconsistent or no heat wind output from vents, abnormal airflow temperature. Failure to maintain set temperature in automatic mode, reducing comfort. Installation Tips: Step 1: Release the cooling system pressure and drain some coolant water. Step 2: Remove the old heater control valve. Step 3: Install the new heater control valve. Step 4: Connect the water hoses and add coolant water, ensuring the inlet and outlet hoses are not reversed. Step 5: Air needs to be expelled of system,residual air can cause insufficient heating or engine overheating. Step 6: Check for coolant water leaks and perform a function test. Ultimately, professional installation is recommended.