Four Seasons 35937 Engine Coolant Temperature Sender

Reliable Engine Coolant Temperature Sender for Select GM Vehicles

The Four Seasons Temperature Switch 35937 is engineered to provide accurate engine coolant temperature monitoring for various Buick, Chevrolet, GMC, and Pontiac models. Designed for engine-mounted installation, this temperature switch helps regulate cooling fan operation to maintain optimal engine performance.

• Connector color: Black with a round shape for secure connection
• Single terminal male connector for straightforward wiring
• Male fitting with 3/8" pipe thread size (43/64" x 18) for precise fitment
• Temperature activation range: turns on at 237°F and off at 209°F
• Designed to open the cooling fan circuit when temperature threshold is reached
• Meets or exceeds OEM specifications for reliable performance
• Compatible with engine-mounted cooling fan systems

About the Four Seasons Temperature Switch Product Line

The Temperature Switch line by Four Seasons focuses on components that regulate engine cooling systems by monitoring temperature changes. The 35937 engine coolant temperature sender is part of this line, providing dependable switching functionality to control cooling fans in select GM vehicles. This product line emphasizes OEM-level fit and function to ensure proper engine temperature management.

Detailed Product Description

The Four Seasons 35937 engine coolant temperature sender is designed to accurately detect engine temperature and activate the cooling fan accordingly. Featuring a black, round male connector with a single terminal, it ensures a secure electrical connection. The male fitting with a 3/8" pipe thread size allows for precise installation in the engine mount location. This temperature switch operates by opening the fan circuit at 237°F and closing it at 209°F, helping maintain engine temperature within optimal limits. It is compatible with various Buick, Chevrolet, GMC, and Pontiac models including Camaro, Celebrity, Century, Citation II, Firebird, P20, and P3500.

Common Applications and Issues Addressed

• Regulates cooling fan operation to prevent engine overheating
• Ensures proper engine temperature readings for efficient cooling system function
• Replaces faulty or worn temperature senders causing erratic fan behavior
• Helps maintain engine performance by preventing temperature-related shutdowns
• Supports cooling system diagnostics and maintenance in GM vehicles

Installation Notes and Tips

• Install in the engine-mounted location as specified for your vehicle model
• Ensure the 3/8" pipe thread fitting is properly sealed to prevent coolant leaks
• Verify connector polarity and secure the male terminal connection
• Check cooling fan operation after installation to confirm proper switching
• Consult vehicle service manual for torque specifications and installation procedures

Quality Assurance and Warranty

The Four Seasons Temperature Switch 35937 meets or exceeds OEM standards, ensuring reliable performance and durability. This part is manufactured to provide consistent temperature sensing and fan control in compatible Buick, Chevrolet, GMC, and Pontiac vehicles. Warranty coverage details should be confirmed with the product documentation or manufacturer.