Four Seasons 74916 HVAC Heater Control Valve

Four Seasons 74916 Heater Valve for Ram HVAC

Four Seasons 74916 is a rotary electronic heater valve for HVAC temperature control systems. This OE replacement heater valve is built for Ram trucks that need precise coolant flow control through the heater core, helping restore consistent cabin heat and temperature regulation.

Key Features

• Rotary electronic heater valve for HVAC temperature control
• OE replacement design for direct application matching
• Built for heater valve service in Ram heating systems
• Cross-references Gates EHV117 for the same application
• Part number 74916 for easy identification and ordering

Product Details

Four Seasons Heater Valve line focuses on temperature control components used in vehicle HVAC systems. Part number 74916 is a rotary electronic heater valve that regulates coolant flow to the heater core, supporting proper heat output and cabin temperature management. It is listed as an OE replacement and is used in Ram 1500, Ram 1500 Classic, Ram 2500, and Ram 3500 applications across the model years shown below. This part cross-references Gates EHV117 for the same application.

Compatible With: Fits 2013-2021 Ram 1500, N/A; Fits 2019-2021 Ram 1500 Classic, N/A; Fits 2013-2015 Ram 2500, N/A; Fits 2013-2015 Ram 3500, N/A. Search terms commonly used for this part include Ram 1500 heater valve replacement, Ram 2500 HVAC heater control valve, and Ram 3500 rotary electronic heater valve 74916.

Common Issues This Part Can Address

• Inconsistent heat output from the HVAC system
• Heater core coolant flow control problems
• Temperature changes that do not respond correctly to HVAC commands
• Faulty heater valve operation in Ram truck heating systems
• Need for an OE-style replacement heater control valve

Installation Notes and Tips

Verify the vehicle year, model, and HVAC configuration before installation. Inspect coolant hoses, electrical connectors, and surrounding HVAC components for wear or leakage before replacing the valve. After installation, refill and bleed the cooling system as required by the vehicle service procedure to help prevent air pockets and restore normal heater performance.

Quality Assurance

Four Seasons manufactures HVAC temperature control components for OE-style service applications. Part 74916 is an OE replacement heater valve intended to match the original application requirements for the listed Ram trucks.