Four Seasons 74935 HVAC Heater Control Valve - Rear

Overview of Four Seasons Heater Valve 74935 for BMW X5

The Four Seasons Heater Valve 74935 is a single solenoid electronic heater valve designed specifically for BMW X5 models. Engineered with durable thermoplastic and steel materials, this electric bypass valve ensures precise temperature control within your vehicle's HVAC system.

• Single solenoid electronic heater valve for reliable operation
• Constructed from thermoplastic and steel for durability
• Features 3 connectors and 2 terminal pins for secure electrical connections
• Bypass style valve with precise opening dimensions (0.78-0.81 inches)
• Compatible with BMW X5 HVAC temperature control systems

Four Seasons Heater Valve Product Line Details

The Heater Valve product line by Four Seasons focuses on temperature control components designed to regulate coolant flow within vehicle heating systems. The 74935 heater valve is part of this line, offering an electric operation type that integrates seamlessly with BMW X5 HVAC systems to maintain optimal cabin temperature and comfort.

Technical Description and Specifications

This HVAC heater control valve operates electrically via a single solenoid, allowing precise modulation of coolant flow. The valve body is made from a combination of thermoplastic and steel, providing resistance to heat and corrosion. It includes three connectors and two terminal pins to ensure stable electrical connectivity. The bypass style design features openings measuring approximately 0.78 to 0.81 inches (19.75 to 20.45 mm), which are critical for proper fitment and flow control within the BMW X5 heating system.

Common Applications and Problem Resolution

• Restores proper heater function in BMW X5 models experiencing inconsistent cabin heat
• Resolves issues related to heater valve failure such as coolant leaks or valve sticking
• Improves HVAC temperature regulation by replacing faulty or worn heater valves
• Addresses electrical operation faults in the heater control valve system
• Prevents overheating or insufficient heating caused by malfunctioning bypass valves

Installation Notes and Tips

When installing the Four Seasons Heater Valve 74935 on a BMW X5, ensure all electrical connectors are securely attached to avoid intermittent operation. Verify that the valve openings align correctly with the vehicle’s coolant lines to prevent leaks. It is recommended to inspect the surrounding HVAC components for wear or damage during replacement to maintain system integrity.

Quality Assurance and Warranty

Four Seasons manufactures the Heater Valve 74935 to meet OEM standards for fit, form, and function. The combination of thermoplastic and steel materials ensures durability under typical operating conditions. While specific warranty details are not provided here, Four Seasons products generally come with a limited warranty covering defects in materials and workmanship.