Four Seasons 74009 HVAC Heater Control Valve

Four Seasons 74009 Heater Valve Overview

Four Seasons 74009 is an OE replacement HVAC heater control valve built for precise coolant flow management in the heating system. This electric bypass-style valve uses a multiple-solenoid design with thermoplastic and steel construction for service in temperature control applications on select Ford, Jaguar, and Lincoln vehicles.

Compatible with 2000-2002 Lincoln LS, 2000-2002 Jaguar S-Type, and 2002 Ford Thunderbird, Four Seasons 74009 supports direct replacement needs where the original heater valve has failed or is no longer regulating flow correctly. The Four Seasons Heater Valve line focuses on application-specific HVAC control components for repair work that follows original equipment specifications.

Key Features

• OE replacement HVAC heater control valve
• Electric bypass-style operation
• Multiple solenoid electronic heater valve design
• Thermoplastic and steel construction
• 5 hose connectors for application-specific routing
• 3-terminal electrical connection
• Bypass configuration for coolant flow control
• Cross-reference part number: Gates EHV103

Detailed Product Description

Four Seasons 74009 is engineered as a heater valve for HVAC temperature control systems that require electronic coolant routing. Its bypass style and electric valve operation help regulate heater core flow based on system demand, while the OE replacement design supports factory-style service on the Lincoln LS, Jaguar S-Type, and Ford Thunderbird. The part number 74009 is also referenced in interchange listings for related aftermarket and OE-style applications.

This heater valve uses five hose connectors, three terminals, and a thermoplastic/steel body to match the demands of modern HVAC plumbing and electrical control. For buyers searching for a 2000-2002 Lincoln LS heater valve, a 2000-2002 Jaguar S-Type heater control valve, or a 2002 Ford Thunderbird HVAC heater valve, Four Seasons 74009 is a direct-fit service part to compare against the original component.

What This Part Helps Address

• No heat or inconsistent cabin heat output
• Coolant flow not switching correctly through the heater circuit
• HVAC temperature control that does not respond as expected
• Leaking or worn heater valve housing
• Electrical failure in the original heater control valve

Installation Notes and Tips

Verify hose routing, connector count, and electrical terminal layout before installation. Four Seasons 74009 is a bypass-style electric heater valve, so correct hose placement and secure electrical connection are important for proper operation. Mounting hardware is not included. Confirm vehicle application by year, make, and model before replacing the original valve.

Quality Assurance

Four Seasons supplies HVAC temperature control components for OE-style replacement service. Part number 74009 is built to match the listed application requirements for compatible Ford, Jaguar, and Lincoln models.