Four Seasons 74796 HVAC Heater Control Valve

Overview of Four Seasons In-line Restrictor Heater Valve 74796

The Four Seasons In-line Restrictor Heater Control Valve 74796 is designed to regulate coolant flow within the HVAC system of select vehicles. This plastic heater valve features two hose connectors and is engineered as an O.E. replacement part, ensuring compatibility and reliable operation in models like the Chevrolet Camaro and Pontiac Firebird.

• Heater valve in-line restrictor design
• Two hose connectors for secure fitment
• Plastic construction for durability
• Non-bypass style for precise temperature control
• O.E. replacement part number 74796
• Compatible with Buick, Chevrolet, Chrysler, Dodge, Oldsmobile, and Pontiac vehicles

Detailed Product Description and Specifications

This Four Seasons heater control valve, part number 74796, is an in-line restrictor type valve that controls the flow of coolant through the heater core. It features two hose connectors with openings measuring 0.750 inches (19.05 mm), designed to fit specific HVAC systems without bypass functionality. The valve is constructed from durable plastic material, providing resistance to corrosion and wear over time. As a non-bypass style valve, it ensures that coolant flow is properly restricted to maintain consistent cabin temperature control.

About the Four Seasons In-line Restrictor Product Line

The In-line Restrictor product line from Four Seasons focuses on precise flow control components within vehicle HVAC systems. These parts are engineered to meet original equipment specifications, offering reliable performance in temperature regulation. The 74796 heater valve exemplifies this line by providing a direct replacement solution that integrates seamlessly with factory HVAC plumbing in compatible vehicles.

Compatible Vehicles and Common Applications

• Buick models including the Park Avenue and Riviera
• Chevrolet models such as the Camaro and Custom Cruiser
• Chrysler and Dodge minivans like the Caravan and Grand Caravan
• Oldsmobile 88 and 98 series
• Pontiac Firebird and Bonneville

Installation Notes and Tips

• Ensure the heater control valve 74796 matches the hose diameter of 0.750 inches (19.05 mm) for proper fitment
• Inspect existing hoses and clamps for wear before installation
• Follow vehicle-specific service manual instructions for HVAC system access
• Verify no bypass lines are connected, as this valve is non-bypass
• Test the HVAC system after installation to confirm proper temperature control

Quality Assurance and Warranty Information

Four Seasons manufactures the 74796 heater valve to meet or exceed original equipment standards. This part is designed for durability and consistent performance in the specified vehicle applications. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship, supporting long-term reliability in automotive HVAC systems.