HomeBelts and Cooling > SensorsStandard Ignition TX157 Engine Coolant Temperature Sensor
Part #: SS-251

Standard Ignition TX157 Engine Coolant Temperature Sensor

⚙️ 50 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
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Reliable Engine Coolant Temperature Sensor for Scion and Subaru Vehicles

The Standard Ignition TX157 Engine Coolant Temperature Sensor is designed to provide accurate temperature readings for your vehicle's engine management system. Compatible with select Scion and Subaru models, this sensor ensures optimal engine performance and helps prevent overheating issues.

  • Bolt-on attachment method for secure installation
  • Female rectangular plug-in connector with one connector
  • Two male blade terminals for reliable electrical contact
  • Engineered for precise coolant temperature measurement
  • Compatible with Scion FR-S and Subaru B9 Tribeca, Forester, Impreza, Legacy, Outback, Tribeca, and WRX models

Detailed Product Description

The Standard Ignition TX157 Engine Coolant Temperature Sensor features a bolt-on design that simplifies installation and ensures a firm fit. It includes a female rectangular plug-in connector with a single connection point, making it compatible with the original wiring harness of your vehicle. The sensor uses two male blade terminals to maintain consistent electrical contact, which is critical for accurate temperature data transmission to the engine control unit (ECU). This sensor is specifically designed for use in Scion and Subaru vehicles, including the FR-S, B9 Tribeca, Forester, Impreza, Legacy, Outback, Tribeca, and WRX models, providing reliable performance and helping maintain engine efficiency.

Common Applications and Issues Addressed

  • Prevents engine overheating by providing accurate coolant temperature readings
  • Helps maintain proper fuel mixture and engine timing
  • Resolves erratic temperature gauge readings
  • Eliminates engine stalling related to faulty temperature sensor data
  • Supports efficient engine warm-up and emissions control

Installation Notes and Tips

Installation of the TX157 sensor requires a bolt-on approach, ensuring a secure fit without the need for additional mounting hardware. When replacing the sensor, ensure the connector is fully seated and the blade terminals are clean and free of corrosion. It is recommended to disconnect the battery before installation to avoid electrical shorts. Verify compatibility with your specific Scion or Subaru model before installation to ensure proper fitment.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing dependable performance and durability. The TX157 Engine Coolant Temperature Sensor undergoes rigorous quality control testing to ensure reliability. Warranty coverage details can be obtained from the product documentation or Standard Ignition's official resources.

This part fits 50 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2014SubaruLegacy3.6LH6N/A
2014SubaruOutback2.5LH4N/A
2013ScionFR-SN/APrior to purchase, ensure compatibility with vehicle's alternator for proper fit.
2013SubaruLegacy2.5LH4N/A
2013SubaruOutback2.5LH4N/A
2012SubaruForesterN/A
2012SubaruImprezaN/A
2012SubaruLegacyN/A
2012SubaruOutback3.6LH6N/A
2012SubaruTribecaN/A
2012SubaruWRX2.5LH4N/A
2011SubaruForesterN/A
2011SubaruImprezaN/A
2011SubaruLegacyN/A
2011SubaruOutback3.6LH6N/A
2011SubaruTribecaN/A
2010SubaruForesterN/A
2010SubaruImprezaN/A
2010SubaruLegacy2.5LH4N/A
2010SubaruOutback3.6LH6N/A
2010SubaruTribecaN/A
2009SubaruForesterN/A
2009SubaruImprezaN/A
2009SubaruLegacy2.5LH4N/A
2009SubaruLegacy3.0LH6N/A
2009SubaruOutbackN/A
2009SubaruTribecaN/A
2008SubaruForester2.5LH4N/A2 Terminal Fitment
2008SubaruImprezaN/A
2008SubaruLegacy2.5LH4N/A
2008SubaruLegacy3.0LH6N/A
2008SubaruOutback2.5LH4N/A
2008SubaruOutback3.0LH6N/A
2008SubaruTribecaN/A
2007SubaruB9 TribecaN/A
2007SubaruForester2.5LH4N/A2 Terminal Fitment
2007SubaruImprezaN/A2 Terminal Fitment
2007SubaruLegacyN/A
2007SubaruOutback2.5LH4N/A
2007SubaruOutback3.0LH6N/A
2006SubaruB9 TribecaN/A
2006SubaruForester2.5LH4N/A2 Terminal Fitment
2006SubaruImprezaN/A2 Terminal Fitment
2006SubaruLegacyN/A
2006SubaruOutback2.5LH4N/A
2006SubaruOutback3.0LH6N/A
2005SubaruLegacyN/A
2005SubaruOutback2.5LH4N/A
2005SubaruOutback3.0LH6N/A
2004SubaruOutback3.0LH6N/A

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