Four Seasons 74682 HVAC Heater Control Valve

Four Seasons 74682 Heater Valve Overview

Four Seasons 74682 is a cable operated HVAC heater control valve built as an OE replacement for temperature control systems that use a non-bypass design. It uses a steel body with two hose connectors and is specified with 0.625 in (15.875 mm) opening and 0.375 in (9.525 mm) opening dimensions for direct service applications.

As part of the Four Seasons Heater Valve line, this heater valve is focused on restoring coolant flow control through the heater circuit. It is a practical choice for drivers searching for a Four Seasons 74682 heater valve, an OE-style HVAC heater control valve, or a cable operated non-bypass heater valve for vehicle heating repair.

Key Features

• Cable operated heater control valve for manual temperature control systems
• Non-bypass style for heater circuit flow management
• Steel construction for service durability
• Two hose connectors for standard heater hose routing
• OE replacement design for direct-fit service use
• Opening sizes: 0.625 in / 15.875 mm and 0.375 in / 9.525 mm

Detailed Description

Four Seasons 74682 is an HVAC heater control valve used to regulate coolant flow to the heater core in cable operated heating systems. The non-bypass configuration helps maintain proper heater circuit control, while the steel construction supports long-term service in underhood conditions. If you are replacing a worn heater valve on a vehicle such as a Ford Mustang or Chevrolet Camaro, this OE replacement part number 74682 is built for straightforward service in the original application.

This part cross-references Bosch 15179 for the same application.

What It Helps Fix

• Heater output stuck on hot or cold
• Coolant flow not responding to cabin temperature control
• Leaking or corroded heater valve housing
• Broken cable-operated heater control function
• Restricted heater core coolant flow

Installation Notes

Verify hose connector size, cable operation, and valve orientation before installation. Match the original non-bypass layout and confirm the opening dimensions against the removed part. For best results, inspect heater hoses and cable routing during replacement, and bleed the cooling system after service according to the vehicle manufacturer procedure.

Quality Assurance

Four Seasons heater valves are built as OE replacement service parts for HVAC temperature control repairs. Part number 74682 is engineered to match the original style used in the application and support reliable heater circuit operation.