Four Seasons 37881 Engine Coolant Temperature Sensor

Four Seasons 37881 Coolant Temp Sensor

The Four Seasons 37881 coolant temp sensor is an OE-style engine coolant temperature sensor built for accurate temperature signal input to the vehicle’s engine management system. It uses a female rectangular connector, 2 terminals, and an M12-1.25 fitting thread size for the listed Saturn applications.

Four Seasons Coolant Temp Sensor line parts are built for direct replacement service in cooling-system and engine-control repairs. This sensor is a practical choice when diagnosing temperature-related drivability concerns on Saturn L300, LW300, Vue, LS2, and LW2 models.

Key Features

• Engine coolant temperature sensor for cooling-system and engine-control service
• Female rectangular connector with 2 terminals
• M12-1.25 fitting thread size
• Meets or exceeds OEM requirements
• Direct-fit replacement for listed Saturn applications
• Four Seasons part number 37881

Detailed Description

Four Seasons 37881 is an engine coolant temperature sensor that reports coolant temperature data to the vehicle control system. Accurate sensor input helps the engine computer manage fuel delivery, idle strategy, and temperature-based operation. This part cross-references A14231 for the same application. It is listed for 2001-2005 Saturn L300, 2001-2003 Saturn LW300, 2002-2003 Saturn Vue, 2000 Saturn LS2, and 2000 Saturn LW2.

For buyers searching for a coolant temp sensor for Saturn L300 or a replacement engine coolant temperature sensor for Saturn Vue, this Four Seasons 37881 part number provides a direct-reference option with the specified connector and thread configuration.

What It Helps Address

• Incorrect coolant temperature readings
• Hard starting or rough idle related to temperature input
• Cooling fan control concerns tied to sensor data
• Check engine light conditions involving coolant temperature circuits
• Fuel mixture issues caused by inaccurate engine temperature reporting

Installation Notes and Tips

Verify the connector shape, terminal count, and thread size before installation. Confirm the sensor location on the engine cooling circuit and compare the removed part to the new Four Seasons 37881 unit before threading it into place. Use the vehicle service procedure for torque and electrical connection checks, and clear diagnostic trouble codes after repair if required.

Quality Assurance

This Four Seasons coolant temp sensor is marked as meeting or exceeding OEM requirements for the listed applications. Four Seasons 37881 is built for replacement service where accurate coolant temperature signal output is required.