Four Seasons 36479 Engine Cooling Fan Switch

Reliable Engine Cooling Fan Switch for Mercedes-Benz and Volvo

The Four Seasons Temperature Switch part number 36479 is designed to maintain optimal engine temperature by controlling the cooling fan operation. Compatible with select Mercedes-Benz and Volvo models, this radiator-mounted temperature switch ensures precise fan activation and deactivation based on engine heat levels.

• Connector color: White with open male connector
• Two terminal pins for secure electrical connection
• Fitting thread size: M14 x 1.50, male fitting
• Temperature activation range: turns on at 212°F and off at 203°F
• Meets or exceeds OEM specifications for reliable performance

Four Seasons Temperature Switch Product Line Overview

The Temperature Switch line by Four Seasons focuses on temperature-sensitive components that regulate engine cooling systems. This product line includes switches engineered to activate cooling fans at precise temperature thresholds, helping to prevent engine overheating and maintain efficient operation. The 36479 switch is part of this line, offering compatibility with specific Mercedes-Benz and Volvo vehicles and designed for radiator mounting.

Detailed Product Description and Attributes

This engine cooling fan switch features a white, open male connector with two terminal pins, ensuring a stable electrical connection. The switch mounts directly to the radiator using a male fitting with an M14 x 1.50 thread size. It functions as a temperature switch, activating the cooling fan at 212°F and turning it off at 203°F to maintain optimal engine temperature. The part meets or exceeds original equipment manufacturer (OEM) standards, providing dependable operation in demanding conditions.

Applications and Common Issues Addressed

• Prevents engine overheating by activating the cooling fan at the correct temperature
• Ensures cooling fan deactivation to avoid unnecessary power consumption
• Replaces faulty or worn temperature switches in Mercedes-Benz 300SDL, 380SL, 380SLC, 500SEL, 560SL and Volvo 740, 745, 760, DL, GLE models
• Helps maintain consistent engine temperature for improved performance
• Addresses intermittent fan operation or failure to engage

Installation Notes and Tips

When installing the Four Seasons Temperature Switch 36479, ensure the radiator mount location is clean and free of debris. Use the correct M14 x 1.50 thread size to secure the switch firmly without over-tightening. Verify the connector pins align properly with the vehicle’s wiring harness and confirm the white open male connector is fully seated. Testing the switch operation after installation is recommended to confirm proper fan activation and deactivation temperatures.

Quality Assurance and Warranty

Four Seasons Temperature Switch 36479 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. This part undergoes rigorous quality control to maintain consistent temperature switching accuracy. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship, providing confidence in the product’s longevity.