Four Seasons 74919 HVAC Heater Control Valve

Four Seasons 74919 Heater Valve Overview

The Four Seasons 74919 is an OE replacement HVAC heater control valve for vehicles that use a single solenoid electronic heater valve. It is built for direct replacement in temperature control systems where coolant flow to the heater core must be regulated electronically.

Compatible with select Dodge Sprinter 2500 and Sprinter 3500 models, as well as Mercedes-Benz SL600 and 600SL applications, this Four Seasons heater valve supports accurate cabin heat control and restores proper HVAC operation. The Four Seasons Heater Valve line is focused on replacement parts for heating and cooling systems, and part number 74919 follows that OE-style approach.

Key Features

• Single solenoid electronic heater valve design
• OE replacement construction for direct-fit service
• HVAC heater control valve for coolant flow management
• Fits select Dodge Sprinter 2500 and Sprinter 3500 applications
• Fits select Mercedes-Benz SL600 and 600SL applications
• Cross-references Gates EHV118 for the same application

Detailed Description

Four Seasons 74919 is an HVAC heater control valve used to regulate hot coolant flow through the heater circuit. When the valve opens and closes as commanded by the vehicle’s control system, it helps maintain the correct cabin temperature and supports consistent heater performance. This part number is listed as an OE replacement and is intended for vehicles that require a single solenoid electronic heater valve.

Fitment includes 2003-2006 Dodge Sprinter 2500, 2003-2006 Dodge Sprinter 3500, 1994-2002 Mercedes-Benz SL600, and 1993 Mercedes-Benz 600SL. If you are replacing a failed heater valve on a Dodge Sprinter 2500, Dodge Sprinter 3500, Mercedes-Benz SL600, or Mercedes-Benz 600SL, Four Seasons 74919 provides the correct style of HVAC temperature control component for those listed applications.

Common Problems This Part Can Address

• No heat from the vents
• Heat stuck on or unable to regulate cabin temperature
• Coolant flow not switching properly through the heater circuit
• Intermittent HVAC temperature control response
• Leaking or malfunctioning heater valve assembly

Installation Notes and Tips

Verify the vehicle’s HVAC system uses a single solenoid electronic heater valve before ordering. Confirm the year, make, and model against the listed fitment for 2003-2006 Dodge Sprinter 2500, 2003-2006 Dodge Sprinter 3500, 1994-2002 Mercedes-Benz SL600, or 1993 Mercedes-Benz 600SL. Inspect coolant hoses, electrical connectors, and the surrounding HVAC components during replacement to ensure the new valve operates correctly after installation.

Quality Assurance

Four Seasons is a recognized name in HVAC replacement components, and this heater valve is built as an OE replacement part for the listed applications. Part number 74919 is also cross-referenced to Gates EHV118 for the same application.