Four Seasons 35946 Engine Cooling Fan Switch

Reliable Engine Cooling Fan Switch for GM Vehicles

The Four Seasons Temperature Switch 35946 is engineered to maintain optimal engine temperature by controlling the cooling fan operation. Designed for select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, this engine cooling fan switch ensures your vehicle’s cooling system functions efficiently.

• Connector color: Black with a round shape for secure connection
• Single terminal male connector for straightforward installation
• Engine-mounted fitting with 3/8" pipe thread size (43/64" x 18)
• Temperature activation set at 212°F to open the cooling fan circuit
• Meets or exceeds OEM specifications for reliable performance

About the Four Seasons Temperature Switch Product Line

The Temperature Switch line by Four Seasons focuses on precision-engineered components that regulate engine cooling fan operation based on temperature thresholds. This product line is designed to provide consistent and accurate fan control, helping to prevent engine overheating and maintain proper operating temperatures in various GM vehicles.

Detailed Product Description

The Four Seasons 35946 engine cooling fan switch is a temperature-activated switch that opens the fan circuit at 212°F, allowing the cooling fan to engage when needed. It features a black, round male connector with a single terminal, ensuring compatibility with the vehicle’s wiring harness. The switch mounts directly on the engine using a male fitting with a 3/8" pipe thread, providing a secure and leak-free installation. This part is engineered to meet or exceed original equipment manufacturer (OEM) standards, making it suitable for a range of GM models including the Chevrolet Camaro, Pontiac Firebird, Buick LeSabre, Cadillac DeVille, and Oldsmobile Cutlass Calais.

Common Applications and Issues Addressed

• Prevents engine overheating by activating the cooling fan at the correct temperature
• Resolves intermittent or non-functioning cooling fan problems
• Replaces faulty or worn temperature switches causing erratic fan operation
• Ensures proper engine temperature regulation for improved performance
• Eliminates electrical connection issues with a secure male terminal design

Installation Notes and Tips

• Ensure the engine is cool before removing the old switch to avoid burns
• Use appropriate thread sealant compatible with cooling system fluids on the 3/8" pipe thread
• Verify connector polarity and secure the male terminal firmly to prevent loose connections
• Check for coolant leaks after installation and tighten as necessary
• Consult vehicle-specific service manual for exact switch location and removal procedures

Quality Assurance and Warranty

The Four Seasons Temperature Switch 35946 is manufactured to meet or exceed OEM quality standards, ensuring durability and reliable operation. This part undergoes rigorous testing to confirm temperature accuracy and electrical integrity. While specific warranty details may vary, Four Seasons typically offers a limited warranty covering defects in material and workmanship.