Four Seasons 36451 Engine Coolant Temperature Sensor

Four Seasons 36451 Coolant Temp Sensor

Four Seasons 36451 is an engine coolant temperature sensor for Mercedes-Benz applications that rely on accurate coolant temperature input for engine and HVAC control. This brass sensor uses a male M14 x 1.50 thread, a special connector shape, and a 2-terminal male connection for direct replacement service.

As part of the Four Seasons Coolant Temp Sensor line, this component is built for OE-style replacement needs where correct temperature signal output matters. It meets or exceeds OEM requirements and is a direct-fit option for select Mercedes-Benz 300E, 300CE, 300TE, 190E, and related models.

Key Features

• Engine coolant temperature sensor for Mercedes-Benz cooling system service
• Four Seasons part number 36451
• Brass sensor body for durable threaded installation
• Male connector and male fitting design
• M14 x 1.50 thread size
• 2-terminal electrical connection
• Meets or exceeds OEM requirements

Fitment Details

• Fits 1991-1993 Mercedes-Benz 300TE, N/A
• Fits 1988-1989 Mercedes-Benz 300TE, N/A
• Fits 1992 Mercedes-Benz 300CE, N/A
• Fits 1988-1989 Mercedes-Benz 300CE, N/A
• Fits 1992 Mercedes-Benz 300E, N/A
• Fits 1986-1989 Mercedes-Benz 300E, N/A
• Fits 1992 Mercedes-Benz 300SL, N/A
• Fits 1991 Mercedes-Benz 300SE, N/A
• Fits 1988-1989 Mercedes-Benz 300SE, N/A
• Fits 1991 Mercedes-Benz 300SEL, N/A
• Fits 1988-1989 Mercedes-Benz 300SEL, N/A
• Fits 1990 Mercedes-Benz 190E, N/A, Federal Emissions; Coolant Temp Sensor
• Fits 1987-1989 Mercedes-Benz 190E, N/A
• Fits 1987-1989 Mercedes-Benz 260E, N/A
• Fits 1986-1989 Mercedes-Benz 420SEL, N/A
• Fits 1989 Mercedes-Benz 560SEC, N/A, HVAC Blower Motor Resistor Harness with 2 terminals; Coolant Temp Sensor
• Fits 1986-1989 Mercedes-Benz 560SEL, N/A
• Fits 1986-1989 Mercedes-Benz 560SL, N/A
• Fits 1986-1988 Mercedes-Benz 560SEC, N/A

What This Sensor Helps Address

• Incorrect coolant temperature signal to the engine management system
• Hard starting or rough running related to temperature input errors
• Inaccurate gauge or control-system temperature readings
• Cooling system diagnosis when the original sensor is worn or failing
• Mercedes-Benz 300E coolant temp sensor replacement needs

Installation Notes

Verify the thread size, connector style, and terminal count before installation. This Four Seasons 36451 sensor uses an M14 x 1.50 male thread and a special connector shape, so matching the original sensor configuration is important for proper fitment. This part cross-references NGK 49632 and Global Parts Distributors LLC 1712677 for the same application.

Quality Assurance

Four Seasons states this coolant temp sensor meets or exceeds OEM requirements, supporting OE-style replacement for select Mercedes-Benz cooling system applications. Confirm vehicle year, model, and connector configuration before ordering.