HomeBelts and Cooling > SensorsFour Seasons 37881 Engine Coolant Temperature Sensor
Part #: 37881

Four Seasons 37881 Engine Coolant Temperature Sensor

Coolant Temp Sensor
⚙️ 12 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Coolant Temp Sensor
🚗Fitment: Saturn, L300, LW300, Vue, LS2, and LW2
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Engine Coolant Temperature Sensor for Saturn Vehicles

The Four Seasons Coolant Temp Sensor 37881 is designed to provide accurate temperature readings for your Saturn L300, LS2, LW2, LW300, and Vue models. This engine coolant temperature sensor ensures your vehicle's cooling system operates efficiently by monitoring coolant temperature and relaying data to the engine control unit.

  • Connector Gender: Female
  • Connector Shape: Rectangular
  • Fitting Thread Size: M12-1.25
  • Number of Terminals: 2
  • Meets or exceeds OEM specifications
  • Compatible with Saturn L300, LS2, LW2, LW300, and Vue

About the Four Seasons Coolant Temp Sensor Product Line

The Four Seasons Coolant Temp Sensor line focuses on delivering precise and durable temperature sensors for automotive cooling systems. This product line is engineered to meet or exceed original equipment manufacturer standards, ensuring reliable performance and compatibility. The Coolant Temp Sensor 37881 is part of this line, offering a direct fit and dependable operation for select Saturn models.

Detailed Product Description

This engine coolant temperature sensor features a female rectangular connector with two terminals, designed for secure and accurate electrical connections. The M12-1.25 fitting thread size allows for proper installation in the cooling system. By providing real-time temperature data, the sensor helps the engine control unit regulate fuel injection and ignition timing, contributing to optimal engine performance and fuel efficiency.

Common Issues Addressed by This Sensor

  • Engine overheating due to inaccurate temperature readings
  • Poor fuel economy caused by incorrect coolant temperature data
  • Check engine light triggered by faulty temperature sensor signals
  • Erratic engine performance related to cooling system malfunctions
  • Failed emissions tests linked to improper engine temperature regulation

Installation Notes and Tips

When installing the Four Seasons Coolant Temp Sensor 37881, ensure the engine is cool to avoid burns. Use the correct M12-1.25 thread size to avoid cross-threading. Verify the rectangular female connector fits securely with the vehicle’s wiring harness. It is recommended to inspect the sensor wiring and connector for damage before installation to ensure proper function.

Quality Assurance and Warranty

This Four Seasons Coolant Temp Sensor meets or exceeds OEM specifications, providing reliable and consistent performance. The part number 37881 is manufactured under strict quality control standards to ensure durability and accuracy. Please refer to Four Seasons’ warranty policy for coverage details.

BrandFour Seasons
Part Number37881
PositionCoolant Temp Sensor
Connector GenderFemale
Connector ShapeRectangular
DescriptionCoolant Temp Sensor
Fitting Thread SizeM12-1.25
Meets / Exceeds OEM?YES
Number of Terminals2
StyleCoolant Temp Sensor
TypeCoolant Temp Sensor

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005SaturnL300N/ACoolant Temp Sensor
2004SaturnL3003.0LV6N/ACoolant Temp Sensor
2003SaturnL300N/ACoolant Temp Sensor
2003SaturnLW300N/ACoolant Temp Sensor
2003SaturnVue3.0LV6N/ACoolant Temp Sensor
2002SaturnL300N/ACoolant Temp Sensor
2002SaturnLW300N/ACoolant Temp Sensor
2002SaturnVue3.0LV6N/ACoolant Temp Sensor
2001SaturnL300N/ACoolant Temp Sensor
2001SaturnLW300N/ACoolant Temp Sensor
2000SaturnLS2N/ACoolant Temp Sensor
2000SaturnLW2N/ACoolant Temp Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3788190541937A14231SU1326

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.