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Four Seasons 37904 Engine Coolant Temperature Sensor
Reliable Engine Coolant Temperature Sensor for Toyota Prius Models
The Four Seasons Coolant Temp Sensor 37904 is designed to provide accurate temperature readings for your Toyota Prius, Prius C, Prius Plug-In, Prius Prime, and Prius V. This sensor helps maintain optimal engine performance by monitoring coolant temperature and ensuring your vehicle's cooling system operates efficiently.
- Connector Gender: Female
- Connector Shape: Rectangular
- Fitting Thread Size: M16-1.50
- Number of Terminals: 2
- Meets or exceeds OEM specifications
- Compatible with multiple Toyota Prius models
About the Four Seasons Coolant Temp Sensor Product Line
The Four Seasons Coolant Temp Sensor line focuses on delivering precise and durable engine coolant temperature sensors that meet or exceed original equipment manufacturer standards. The 37904 sensor is part of this line, ensuring reliable fitment and performance for Toyota Prius vehicles. This product line emphasizes quality and compatibility to support proper engine management and cooling system function.
Detailed Product Description
The Four Seasons Coolant Temp Sensor 37904 features a female rectangular connector with two terminals, designed for secure and reliable electrical connections. The sensor’s M16-1.50 fitting thread size ensures proper installation and sealing within the engine cooling system. By accurately measuring coolant temperature, this sensor provides critical data to the engine control unit, helping regulate fuel injection, ignition timing, and cooling fan operation. This sensor is compatible with Toyota Prius, Prius C, Prius Plug-In, Prius Prime, and Prius V models, making it a suitable replacement part for maintaining your vehicle’s cooling system integrity.
Common Issues Addressed by This Coolant Temp Sensor
- Erratic or inaccurate engine temperature readings
- Engine overheating due to faulty temperature monitoring
- Poor fuel economy caused by incorrect temperature data
- Check engine light triggered by coolant temperature sensor faults
- Cooling fan malfunction or improper operation
Installation Notes and Tips
- Ensure the engine is cool before removing the old sensor to avoid burns
- Use the correct M16-1.50 thread size to avoid cross-threading
- Verify the connector is female and rectangular to match the vehicle wiring harness
- Check for proper sealing to prevent coolant leaks
- Consult the vehicle’s service manual for torque specifications and sensor location
Quality Assurance and Warranty
The Four Seasons Coolant Temp Sensor 37904 meets or exceeds OEM standards, ensuring reliable performance and durability. This sensor undergoes rigorous testing to confirm fitment and function for Toyota Prius models. Please refer to Four Seasons’ warranty policy for specific coverage details.
| Brand | Four Seasons |
| Part Number | 37904 |
| Position | Coolant Temp Sensor |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Description | Coolant Temp Sensor |
| Fitting Thread Size | M16-1.50 |
| Meets / Exceeds OEM? | YES |
| Number of Terminals | 2 |
| Style | Coolant Temp Sensor |
| Type | Coolant Temp Sensor |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2017 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2017 | Toyota | Prius C | N/A | Coolant Temp Sensor |
| 2017 | Toyota | Prius Prime | N/A | Coolant Temp Sensor |
| 2017 | Toyota | Prius V | N/A | Coolant Temp Sensor |
| 2016 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2016 | Toyota | Prius C | N/A | Coolant Temp Sensor |
| 2016 | Toyota | Prius V | N/A | Coolant Temp Sensor |
| 2015 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2015 | Toyota | Prius C | N/A | Coolant Temp Sensor |
| 2015 | Toyota | Prius Plug-In | N/A | Coolant Temp Sensor |
| 2015 | Toyota | Prius V | N/A | Coolant Temp Sensor |
| 2014 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2014 | Toyota | Prius C | N/A | Coolant Temp Sensor |
| 2014 | Toyota | Prius Plug-In | N/A | Coolant Temp Sensor |
| 2014 | Toyota | Prius V | N/A | Coolant Temp Sensor |
| 2013 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2013 | Toyota | Prius C | N/A | Coolant Temp Sensor |
| 2013 | Toyota | Prius Plug-In | N/A | Coolant Temp Sensor |
| 2013 | Toyota | Prius V | N/A | Coolant Temp Sensor |
| 2012 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2012 | Toyota | Prius C | N/A | Coolant Temp Sensor |
| 2012 | Toyota | Prius Plug-In | N/A | Coolant Temp Sensor |
| 2012 | Toyota | Prius V | N/A | Coolant Temp Sensor |
| 2011 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2010 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2009 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2008 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2007 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2006 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2005 | Toyota | Prius | N/A | Coolant Temp Sensor |
| 2004 | Toyota | Prius | N/A | Coolant 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.