Four Seasons 36400 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Jeep Applications

The Four Seasons 36400 coolant temp sensor provides direct temperature input for engine management and gauge operation. Built with a brass body, male connector, oval connector shape, and 2 terminals, it meets or exceeds OEM requirements for a dependable replacement on select Jeep models.

Key Features

• Engine coolant temperature sensor for accurate coolant temperature signal output
• Brass construction for corrosion resistance in cooling system environments
• Male connector with oval shape and 2 terminals
• 3/8" pipe thread size, 43/64" x 18
• Meets or exceeds OEM specifications
• Four Seasons coolant temp sensor line, part number 36400

Product Details

Four Seasons 36400 is a coolant temp sensor designed for select Jeep Cherokee, Comanche, Wagoneer, and Wrangler applications. This engine coolant temperature sensor threads into the cooling system and sends temperature data used by the vehicle’s control system and dash instrumentation. If you are searching for a Jeep Cherokee coolant temperature sensor, Jeep Wrangler coolant temp sensor, or a Four Seasons 36400 replacement, this part matches the listed fitment and connector style.

This part cross-references Gates 6828 for the same application.

Common Problems It Can Address

• Incorrect coolant temperature readings on the gauge or scan data
• Hard starting or poor cold-engine fuel control caused by faulty temperature input
• Cooling fan operation issues tied to inaccurate sensor signals
• Check engine light concerns related to coolant temperature sensor faults
• Intermittent drivability problems from unstable engine temperature reporting

Installation Notes and Tips

• Verify the 3/8" pipe thread size and 2-terminal oval connector before installation.
• Inspect the connector and wiring for corrosion, looseness, or heat damage.
• Use the correct thread sealant only if specified by the vehicle service procedure.
• Confirm the cooling system is at a safe temperature before removing the old sensor.
• After installation, check for leaks and verify temperature readings during engine warm-up.

Quality Assurance

Four Seasons 36400 meets or exceeds OEM requirements and is built as a direct replacement coolant temp sensor for the listed Jeep applications.

Fitment

• Fits 1985-1990 Jeep Cherokee, N/A
• Fits 1986-1990 Jeep Comanche, N/A
• Fits 1986-1990 Jeep Wagoneer, N/A
• Fits 1987-1990 Jeep Wrangler, N/A