Four Seasons 74906 HVAC Heater Control Valve - Left or Right

Overview of Four Seasons Heater Valve 74906

The Four Seasons Heater Valve 74906 is a rotary electronic heater valve designed for precise temperature control in HVAC systems. Engineered for compatibility with various Audi and Volkswagen models, this electric valve ensures reliable operation and efficient heating performance.

• Rotary electronic heater valve with electric operation
• Two hose connectors with 0.75-inch fitting size
• Thermoplastic and steel construction for durability
• Two female terminals for secure electrical connection
• Non-bypass style with two ports, no bypass function
• OE replacement part for direct fit and function
• Mounting hardware not included

Four Seasons Heater Valve Product Line Details

The Four Seasons Heater Valve product line focuses on temperature control components designed to meet or exceed original equipment specifications. This line includes electric heater valves like part number 74906, which provide precise modulation of coolant flow to the heater core. The Heater Valve series is engineered for durability and compatibility with a range of vehicle makes and models, including Audi and Volkswagen, ensuring dependable HVAC system performance.

Detailed Product Description

The Four Seasons Heater Valve 74906 features a rotary electric valve mechanism that controls the flow of coolant through the heater core, allowing for accurate temperature regulation inside the vehicle cabin. Constructed from thermoplastic and steel materials, this valve offers resistance to corrosion and wear. It includes two hose connectors, each with a 0.75-inch fitting size, and two female terminals for electrical connection. The non-bypass design means the valve does not include a bypass port, focusing solely on controlling flow through the heater core. This part is an OE replacement, ensuring it matches the fit and function of the original component in compatible Audi and Volkswagen vehicles.

Compatible Vehicles and Applications

• Compatible with Audi models including A3, A4, A5, A6, A7, A8, allroad, S3, S6, S7, S8, TT, and their Quattro variants
• Compatible with Volkswagen models such as e-Golf, Golf, Golf Alltrack, Golf R, Golf SportWagen, GTI, Jetta, Q2, Q3, Q5, Q7, Q8, RS7, and TTS Quattro
• Designed for HVAC temperature control and heater core coolant flow regulation
• Ideal for replacing faulty or leaking heater valves in these vehicles

Common Issues Addressed by Heater Valve 74906

• Inconsistent or no heat output from the vehicle’s HVAC system
• Coolant leaks around the heater valve area
• Failure of the heater valve to open or close properly, causing temperature control problems
• Electrical issues related to the valve’s operation terminals
• Replacement of worn or damaged original equipment heater valves

Installation Notes and Tips

• Verify compatibility with your specific Audi or Volkswagen model before installation
• Mounting hardware is not included; retain original hardware or source separately
• Ensure electrical connectors match the female terminals on the valve
• Inspect hoses and fittings for wear and replace if necessary to prevent leaks
• Follow vehicle manufacturer guidelines for heater valve replacement and coolant system bleeding

Quality Assurance and Warranty

The Four Seasons Heater Valve 74906 is manufactured to meet original equipment standards, providing reliable performance and fitment. While mounting hardware is not included, the valve’s thermoplastic and steel construction supports long-term durability. This part is backed by Four Seasons’ quality assurance protocols. Please refer to Four Seasons’ official warranty terms for specific coverage details.