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Four Seasons 74906 HVAC Heater Control Valve - Left or Right
| Brand | Four Seasons 74906 |
|---|---|
| Position | Right |
| Bypass? | No |
| Description | Rotary Electronic Heater Valve |
| Fitting Size End 1 | 0.75 |
| Fitting Size End 2 | 0.75 |
| Hose Connector Quantity | 2 Connectors |
| Material | Thermoplastic / Steel |
| Mounting Hardware Included | Not Included |
| O.E. Replacement? | Yes |
| Opening B IN | 0.750 |
| Opening IN | 0.750 |
| Operation Type | Electric Valve |
| Port Quantity | 2 |
| Style | Non-Bypass |
| Terminal Gender | female |
| Terminal Quantity | 2 |
| Type | Heater Valves |
| Product line | Heater Valve |
| Fits | Audi and Volkswagen · 168 vehicles |
OE replacement. Direct-fit heater valve for straightforward installation.
Rotary electronic design. Electric valve operation gives precise coolant flow control.
Thermoplastic and steel. Durable construction for dependable HVAC performance.
Cross-references Four Seasons 74906, Gates EHV107 and Genuine 4H0121671D for the same application. See all 7.
Four Seasons 74906 Heater Valve Overview
The Four Seasons 74906 is a rotary electronic HVAC heater control valve built as an OE replacement for select Audi and Volkswagen applications. It uses an electric valve design with thermoplastic and steel construction, 0.750 in. openings, and a non-bypass layout for direct heater circuit control.
Use this heater valve when servicing temperature control issues on vehicles such as the Audi A3, A4, Q5, TT, and Volkswagen GTI, Golf, and Jetta. Four Seasons Heater Valve 74906 is engineered for factory-style fitment where an electronic heater valve is specified.
Key Features
- Rotary electronic heater valve for HVAC temperature control
- OE replacement design for factory-style service
- Electric valve operation with 2 female terminals
- 2 hose connectors and 2 ports with 0.750 in. openings
- Non-bypass style for direct heater flow management
- Thermoplastic / steel construction for underhood use
- Mounting hardware not included
Product Details
Four Seasons 74906 is a heater control valve used in HVAC temperature control systems to regulate coolant flow through the heater circuit. This rotary electronic heater valve is designed for vehicles that require an OE-style electric valve with two hose connections and a non-bypass configuration. It cross-references Gates EHV107 for the same application.
Compatible vehicle coverage includes 2015-2019 Audi A3, 2018-2019 Audi A4, 2013-2019 Audi Q5, 2019 Volkswagen Jetta, and other Audi and Volkswagen models listed in the fitment data. The Four Seasons 74906 part number is also referenced in OE and aftermarket catalogs for service matching.
Common Problems This Part Can Address
- No heat or inconsistent cabin heat from a restricted heater valve
- Temperature stuck hot or cold due to valve control failure
- Coolant flow issues through the heater circuit
- HVAC performance problems caused by a worn electric heater valve
- Leakage at the heater valve body or hose connections
Installation Notes and Tips
Verify the vehicle’s original valve style, connector count, port size, and position before installation. This part uses 2 female terminals and 0.750 in. hose openings, and mounting hardware is not included. Confirm the correct side or location for applications listed as left or right, including Audi A3, Audi Q7, Volkswagen Golf, and Volkswagen GTI fitments.
For best results, compare the original part number and connector layout before replacing the valve. The Four Seasons 74906 heater valve is listed for a wide range of Audi and Volkswagen models, including Audi A4 allroad, Audi A8 Quattro, Audi S3, Volkswagen e-Golf, and Volkswagen Golf SportWagen.
Quality Assurance
Four Seasons supplies HVAC temperature control components for OE-style service replacement. Part number 74906 is built to match the specified application requirements for select Audi and Volkswagen heater valve systems.
| Year | Make | Model | Submodel | Drive Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2019 | Audi | A3 | — | — | — | — | — | Right | Heater Valve |
| 2019 | Audi | A4 | — | — | — | — | — | N/A | Heater Valve |
| 2019 | Audi | A4 allroad | — | — | — | — | — | N/A | Heater Valve |
| 2019 | Audi | A4 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2019 | Audi | A5 | — | — | — | — | — | N/A | Heater Valve |
| 2019 | Audi | A5 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2019 | Audi | A5 Sportback | — | — | — | — | — | N/A | Heater Valve |
| 2019 | Audi | A8 Quattro | — | — | — | 3.0L | V6 | Left | Heater Valve |
| 2019 | Audi | Q5 | — | — | — | — | — | N/A | Heater Valve |
| 2019 | Audi | Q7 | — | — | — | 3.0L | V6 | Right | Heater Valve |
| 2019 | Audi | Q8 | — | — | — | — | — | N/A | Heater Valve |
| 2019 | Audi | S3 | — | — | Automatic Dual Clutch | — | — | Right | Heater Valve |
| 2019 | Audi | TT Quattro | — | AWD | — | — | — | N/A | Heater Valve |
| 2019 | Volkswagen | e-Golf | — | — | — | — | — | Left | Heater Valve |
| 2019 | Volkswagen | Golf | — | — | — | — | — | Left | Heater Valve |
| 2019 | Volkswagen | Golf Alltrack | — | — | — | — | — | Left | Heater Valve |
| 2019 | Volkswagen | Golf R | — | — | — | — | — | Left | Heater Valve |
| 2019 | Volkswagen | Golf SportWagen | — | — | — | — | — | Left | Heater Valve |
| 2019 | Volkswagen | GTI | — | — | — | — | — | Left | Heater Valve |
| 2019 | Volkswagen | Jetta | — | — | Automatic Dual Clutch | 2.0L | L4 | Right | Heater Valve |
| 2018 | Audi | A3 | — | — | — | — | — | Right | Heater Valve |
| 2018 | Audi | A3 Quattro | — | — | — | — | — | Right | Heater Valve |
| 2018 | Audi | A3 Sportback e-tron | — | — | — | — | — | Right | Heater Valve |
| 2018 | Audi | A4 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A4 allroad | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A4 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A5 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A5 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A5 Sportback | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A6 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A6 | Sport | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A6 | Premium | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A6 | Premium Plus | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | — | — | — | 3.0L | V6 | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | Sport | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | Sport | — | — | 3.0L | V6 | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | Premium | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | Premium | — | — | 3.0L | V6 | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | Premium Plus | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | Premium Plus | — | — | 3.0L | V6 | N/A | Heater Valve |
| 2018 | Audi | A6 Quattro | Prestige | — | — | 3.0L | V6 | N/A | Heater Valve |
| 2018 | Audi | A7 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | A8 Quattro | L | — | — | 3.0L | V6 | Left | Heater Valve |
| 2018 | Audi | A8 Quattro | L Sport | — | — | 4.0L | V8 | Left | Heater Valve |
| 2018 | Audi | Q2 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | Q2 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | Q3 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | Q3 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | Q5 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | Q7 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2018 | Audi | Q7 | — | — | — | 3.0L | V6 | N/A | Heater Valve |
| 2018 | Audi | RS7 | — | — | — | 4.0L | V8 | N/A | Heater Valve |
| 2018 | Audi | S3 | — | — | Automatic Dual Clutch | — | — | Right | Heater Valve |
| 2018 | Audi | S6 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | S7 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | S8 | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | TT | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | TT | — | — | — | — | — | Right | Heater Valve |
| 2018 | Audi | TT Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | TT RS Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | TT RS Quattro | — | — | — | — | — | Right | Heater Valve |
| 2018 | Audi | TTS Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Audi | TTS Quattro | — | — | — | — | — | Right | Heater Valve |
| 2018 | Volkswagen | e-Golf | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Volkswagen | Golf | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Volkswagen | Golf Alltrack | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Volkswagen | Golf R | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Volkswagen | Golf SportWagen | — | — | — | — | — | N/A | Heater Valve |
| 2018 | Volkswagen | GTI | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | A3 | — | — | — | 2.0L | L4 | Right | Heater Valve |
| 2017 | Audi | A3 Quattro | — | — | — | — | — | Right | Heater Valve |
| 2017 | Audi | A6 | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | A6 Quattro | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2017 | Audi | A6 Quattro | — | — | — | 3.0L | V6 | N/A | Heater Valve |
| 2017 | Audi | A7 | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | A7 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | A8 Quattro | — | — | — | 3.0L | V6 | Left | Heater Valve |
| 2017 | Audi | A8 Quattro | — | — | — | 4.0L | V8 | Left | To Auxiliary Radiator Hose; Heater Valve |
| 2017 | Audi | Q3 | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | Q3 Quattro | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2017 | Audi | Q5 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2017 | Audi | Q5 | — | — | — | 3.0L | V6 | Left | Heater Valve |
| 2017 | Audi | Q7 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2017 | Audi | Q7 | — | — | — | 3.0L | V6 | Left | Heater Valve |
| 2017 | Audi | RS7 | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | S3 | — | — | — | — | — | Right | Heater Valve |
| 2017 | Audi | S6 | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | S7 | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | S8 | — | — | — | — | — | N/A | Heater Valve |
| 2017 | Audi | TT | — | — | — | — | — | Right | Heater Valve |
| 2017 | Audi | TT Quattro | — | — | — | — | — | Right | Heater Valve |
| 2017 | Audi | TTS Quattro | — | — | — | — | — | Right | Heater Valve |
| 2017 | Volkswagen | Golf | — | — | — | — | — | Right | Heater Valve |
| 2017 | Volkswagen | Golf Alltrack | — | — | — | — | — | Right | Heater Valve |
| 2017 | Volkswagen | Golf R | — | — | — | — | — | Right | Heater Valve |
| 2017 | Volkswagen | Golf SportWagen | — | — | — | — | — | Right | Heater Valve |
| 2017 | Volkswagen | GTI | — | — | — | — | — | Right | Heater Valve |
| 2016 | Audi | A3 | — | — | — | — | — | Right | Heater Valve |
| 2016 | Audi | A3 Quattro | — | — | — | — | — | Right | Heater Valve |
| 2016 | Audi | A3 Sportback e-tron | — | — | — | — | — | Right | Heater Valve |
| 2016 | Audi | A4 allroad | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | A6 | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | A6 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | A7 | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | A7 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | A8 Quattro | — | — | — | — | — | Left | Heater Valve |
| 2016 | Audi | allroad | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | Q3 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2016 | Audi | Q3 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | Q5 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2016 | Audi | Q7 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2016 | Audi | RS7 | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | S3 | — | — | — | — | — | Right | Heater Valve |
| 2016 | Audi | S6 | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | S7 | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | S8 | — | — | — | — | — | N/A | Heater Valve |
| 2016 | Audi | TT | — | — | — | — | — | Right | Heater Valve |
| 2016 | Audi | TT Quattro | — | — | — | — | — | Right | Heater Valve |
| 2016 | Audi | TTS Quattro | — | — | — | — | — | Right | Heater Valve |
| 2016 | Volkswagen | Golf | — | — | — | — | — | Right | Heater Valve |
| 2016 | Volkswagen | Golf R | — | — | — | — | — | Right | Heater Valve |
| 2016 | Volkswagen | Golf SportWagen | — | — | — | — | — | Right | Heater Valve |
| 2016 | Volkswagen | GTI | — | — | — | — | — | Right | Heater Valve |
| 2015 | Audi | A3 | — | — | — | — | — | Right | Heater Valve |
| 2015 | Audi | A3 Quattro | — | — | — | — | — | Right | Heater Valve |
| 2015 | Audi | A4 allroad | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | A6 | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | A6 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | A7 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | A8 Quattro | — | — | — | — | — | Left | Heater Valve |
| 2015 | Audi | allroad | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | Q3 | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | Q3 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | Q5 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2015 | Audi | RS7 | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | S3 | — | — | — | — | — | Right | Heater Valve |
| 2015 | Audi | S6 | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | S7 | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | S8 | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | TT Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Audi | TTS Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Volkswagen | e-Golf | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Volkswagen | Golf | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Volkswagen | Golf R | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Volkswagen | Golf SportWagen | — | — | — | — | — | N/A | Heater Valve |
| 2015 | Volkswagen | GTI | — | — | — | — | — | N/A | Heater Valve |
| 2014 | Audi | A4 allroad | — | — | — | — | — | N/A | Heater Valve |
| 2014 | Audi | A6 | — | — | — | — | — | N/A | Heater Valve |
| 2014 | Audi | A6 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2014 | Audi | A7 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2014 | Audi | A8 Quattro | — | — | — | 3.0L | V6 | N/A | Heater Valve |
| 2014 | Audi | A8 Quattro | — | — | — | 6.3L | W12 | N/A | Heater Valve |
| 2014 | Audi | allroad | — | — | — | — | — | N/A | Heater Valve |
| 2014 | Audi | Q3 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2014 | Audi | Q5 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2014 | Audi | RS7 | — | — | — | — | — | N/A | Heater Valve |
| 2013 | Audi | A4 allroad | — | — | — | — | — | N/A | Heater Valve |
| 2013 | Audi | A6 | — | — | — | — | — | N/A | Heater Valve |
| 2013 | Audi | A6 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2013 | Audi | A8 Quattro | — | — | — | 6.3L | W12 | N/A | Heater Valve |
| 2013 | Audi | allroad | — | — | — | — | — | N/A | Heater Valve |
| 2013 | Audi | Q3 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2013 | Audi | Q5 | — | — | — | 2.0L | L4 | N/A | Heater Valve |
| 2012 | Audi | A6 | — | — | — | — | — | N/A | Heater Valve |
| 2012 | Audi | A6 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2012 | Audi | A8 Quattro | — | — | — | — | — | N/A | Heater Valve |
| 2011 | Audi | A8 Quattro | — | — | — | — | — | N/A | Heater Valve |
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