Four Seasons 74007 HVAC Heater Control Valve

Four Seasons 74007 Heater Valve for Acura TL

Four Seasons 74007 is an OE replacement HVAC heater control valve built for vacuum-closing, non-bypass operation. It uses a cable-operated design with two hose connectors and a 0.625 in opening to help regulate heater core coolant flow in the cabin heating system.

Key Features

• Brand: Four Seasons Heater Valve
• Part number: 74007
• Vacuum closes non-bypass heater valve design
• Cable operation type for heater control applications
• Plastic construction
• Two hose connectors
• 0.625 in opening
• OE replacement heater valve

Product Details

This Four Seasons heater valve is made for HVAC temperature control service where coolant flow to the heater core must be managed accurately. The non-bypass style and vacuum-closing function support direct replacement needs for Acura TL heater valve service, and the OE replacement design helps match the original application. Four Seasons 74007 is listed for 1996-1998 Acura TL models and is a direct-fit heater valve solution for those years.

This part cross-references Global Parts Distributors LLC 8211347 for the same application.

Common Issues It Can Help Address

• Weak or inconsistent cabin heat
• Heater control valve leakage
• Sticking or non-responsive heater flow control
• Coolant flow not shutting off when commanded
• HVAC temperature output that does not match the control setting

Installation Notes and Tips

Verify hose routing, connector count, and valve style before installation. Confirm the vacuum-closing, non-bypass configuration matches the original part on your Acura TL, and inspect hoses and clamps for wear during replacement. For best results, bleed the cooling system after service and check for leaks at the valve and hose connections.

Quality Assurance

Four Seasons 74007 is an OE replacement heater valve built for direct application use in 1996-1998 Acura TL HVAC systems.