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Four Seasons 74939 HVAC Heater Control Valve
| Brand | Four Seasons 74939 |
|---|---|
| Description | Single solenoid electronic heater valve |
| Material | Plastic |
| Number of Connectors | 2 connectors |
| Opening B IN | 0.750 |
| Opening IN | 0.750 |
| Operation Type | Electric valve |
| Style | Non-bypass |
| Type | Heater valves |
| Product line | Heater Valve |
| Fits | Ford · 5 vehicles |
Electronic valve control. Single-solenoid operation provides precise heater flow management.
Non-bypass design. Helps regulate coolant flow without routing around the valve.
Plastic construction. Lightweight material resists corrosion in HVAC service.
Cross-references Anchor 300048, Four Seasons 74939 and Gates EHV128 for the same application. See all 8.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Four Seasons 74939 Heater Valve for Ford F-150
The Four Seasons 74939 is a single solenoid electronic heater valve built for precise coolant flow control in the HVAC system. It is a plastic, non-bypass electric valve with two connectors and a 0.750 in. opening, made for 2015-2019 Ford F-150 heater valve applications.
Key Features
- Single solenoid electronic heater valve for HVAC temperature control
- Plastic construction for OE-style fit and function
- Electric valve operation with 2 connectors
- Non-bypass style with 0.750 in. opening
- Direct replacement for Ford F-150 heater valve service
Product Details
Four Seasons Heater Valve line focuses on HVAC temperature control components for vehicle cooling and cabin comfort systems. Part number 74939 is engineered and tested for dependable operation, drawing on Four Seasons’ long history in mobile air conditioning and heating components. This heater control valve regulates coolant flow through the heater circuit to help maintain proper cabin temperature in Ford F-150 models from 2015 through 2019. This part cross-references Gates EHV128 for the same application.
Common Issues This Part May Address
- No heat or inconsistent heat output from the HVAC system
- Heater core coolant flow that does not respond correctly to temperature commands
- Temperature control problems in the Ford F-150 cabin
- Electrical heater valve failure related to the solenoid or connector interface
- Coolant flow control issues in the heater circuit
Installation Notes
Verify connector style, valve orientation, and hose routing before installation. Confirm the 0.750 in. opening and non-bypass configuration match the original part on the vehicle. For best results, inspect the cooling system for contamination or leaks before replacing the valve, and follow the vehicle service procedure for coolant handling and system bleeding.
Quality Assurance
Four Seasons states that its HVAC components are engineered and tested for years of trouble-free operation. Part number 74939 is backed by the brand’s experience in mobile A/C and heating systems, with a focus on reliable replacement performance for Ford F-150 applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2019 | Ford | F-150 | 2.7L | V6 | N/A | Heater Valve |
| 2018 | Ford | F-150 | 2.7L | V6 | N/A | Heater Valve |
| 2017 | Ford | F-150 | — | — | N/A | Heater Valve |
| 2016 | Ford | F-150 | — | — | N/A | Heater Valve |
| 2015 | Ford | F-150 | — | — | N/A | Heater Valve |
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