Global Parts 1712578 Engine Coolant Temperature Sensor

Brand Global Parts 1712578
Fits Buick, Chevrolet, GMC, Isuzu, Saab, and Oldsmobile · 27 vehicles

Specific fit. Threaded sensor with a sealed, direct-install design.

Brass and plastic. Durable construction with a blade terminal and oval connector.

Engine feedback. Sends temperature input to the engine management system.

Cross-references Standard Ignition TX108, 213-963 and 213963 for the same application. See all 5.

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Engine Coolant Temperature Sensor for GM SUVs

Global Parts 1712578 is an engine coolant temperature sensor used to send temperature feedback to the engine management system. On modern vehicles, that signal helps the ECM manage A/C operation; on earlier systems, it can directly shut the compressor off to help prevent failure. This Global Parts 1712578 sensor is a direct-fit option for select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab applications.

Key Features

  • Engine coolant temperature sensor for temperature signal feedback
  • M12 x 1.75 thread with 2-terminal electrical connection
  • Designed for select GM and related platform vehicles
  • Cross-references Standard Ignition TX108
  • Interchanges with 213-963, 213963, SU1485, and WT5122

Detailed Description

Global Parts 1712578 is built for vehicles that rely on accurate coolant temperature input for engine control and A/C system logic. It is listed for 2002-2005 Chevrolet Trailblazer and Trailblazer EXT, 2002-2005 GMC Envoy and Envoy XL, 2004-2005 Buick Rainier and GMC Envoy XUV, 2003-2005 Isuzu Ascender, 2005 Saab 9-7x, and 2002-2004 Oldsmobile Bravada. If you are searching for an engine coolant temperature sensor for a Chevrolet Trailblazer, GMC Envoy, or Buick Rainier, this part number 1712578 matches the specified thread and terminal configuration.

What It Helps Address

  • Incorrect coolant temperature readings at the ECM
  • A/C compressor shutdown caused by faulty temperature input
  • Hard starting or poor drivability related to bad sensor data
  • Cooling system warning lights triggered by sensor faults
  • Intermittent temperature signal loss from a worn sensor

Installation Notes and Tips

Verify the M12 x 1.75 thread and 2-terminal connector before installation. Confirm the vehicle application by year, make, and model, especially on Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x platforms. Inspect the connector and wiring for corrosion or damage before replacing the sensor.

Quality Assurance

Global Parts supplies replacement components for engine management and cooling system service. Part number 1712578 is cataloged against established interchange references for application matching and fitment verification.

This part fits 27 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2005BuickRainier4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2005ChevroletTrailblazer4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2005ChevroletTrailblazer EXT4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2005GMCEnvoy4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2005GMCEnvoy XL4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2005GMCEnvoy XUV4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2005IsuzuAscender4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2005Saab9-7x4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2004BuickRainier4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2004ChevroletTrailblazer4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2004ChevroletTrailblazer EXT4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2004GMCEnvoy4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2004GMCEnvoy XL4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2004GMCEnvoy XUV4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2004IsuzuAscender4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2004OldsmobileBravada4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2003ChevroletTrailblazer4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2003ChevroletTrailblazer EXT4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2003GMCEnvoy4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2003GMCEnvoy XL4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2003IsuzuAscender4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2003OldsmobileBravada4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2002ChevroletTrailblazer4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2002ChevroletTrailblazer EXT4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2002GMCEnvoy4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2002GMCEnvoy XL4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
2002OldsmobileBravada4.2LL6N/ACoolant Temp Sensor; M12 x 1.75 Thread; 2 Terminal
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — TX108213-963213963SU1485WT5122