HVAC Heater Water Control Valve Assy For 85-89 Toyota 4Runner Pickup 87240-89117

HVAC Heater Water Control Valve Assembly for Toyota

This HVAC heater water control valve assembly regulates coolant flow to the heater core and is a direct replacement for Toyota 4Runner and Pickup models from 1985-1989, cross-referencing OEM part number 87240-89117.

Overview

The HVAC heater water control valve assembly is a vacuum-operated valve that controls hot coolant flow into the heater core. It restores proper cabin heat and prevents coolant leaks on 1985-1989 Toyota 4Runner and Pickup trucks. This HVAC heater water control valve assembly is a direct-fit replacement for aged or seized original valves.

Built For Performance

• Vacuum-actuated diaphragm provides smooth modulation of coolant flow
• High-temperature plastic and metal construction withstands underhood heat cycles
• Preformed hose nipples match original heater hose diameters for a secure fit
• Factory-style mounting bracket allows drop-in installation without modifications
• Corrosion-resistant internal components resist scale buildup from coolant
• Tested for proper sealing to prevent internal and external coolant leaks

Fits These Machines

• for Toyota 4Runner (1985–1989)
• for Toyota Pickup (1985–1989)

On-The-Job Use

• Replacing a leaking or stuck heater control valve that causes no cabin heat
• Restoring heater function after a valve fails to open or close
• Used when coolant odor or wet carpet indicates a leaking heater valve
• Installing during cooling system service or heater core replacement
• Common in older Toyota 4Runner and Pickup trucks with original valve failure

Specs At A Glance

Good To Know

Q: Will this valve stop coolant from leaking into the cabin? A: Yes, a failing heater control valve can cause coolant leaks or poor heat output; replacing it with this assembly restores proper coolant flow and heating.

Q: Is this valve a direct bolt-on replacement? A: This assembly is designed to match the original mounting points and hose connections on 1985-1989 Toyota 4Runner and Pickup trucks, making installation straightforward.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.