How to replace the Engine Coolant Temperature Sensor on Chevrolet Trailblazer?

To replace Engine Coolant Temperature Sensor, simply turn OFF the ignition and lift the vehicle to a desirable support level. Flushing the cooling system below the ECT sensor, then lower the vehicle. Disconnect the electrical connector of the engine coolant temperature (ECT) sensor and remove the ECT sensor. For installation, apply ECT sensor threads with sealer GM P/N 12346004 (Canadian P/N 10953480) or analog, and fix the ECT sensor and tighten it to 20 N.m (15 lb ft). Connect the electrical connector of the ECT sensor along with topping off the engine coolant.

OEM Chevrolet Trailblazer Coolant Temperature Sensor

Coolant Water Temperature Sensor

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

7 Coolant Temperature Sensors found

View related parts
Chevrolet Trailblazer Coolant Temperature Sensor Part Number: 12641073
$12.58 MSRP: $23.62
You Save: $11.04 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Engine Coolant Temperature Sensor; Temperature Sensor; Temperature Sending Unit; Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | L, LS, LT | 3 Cyl 1.2 L GAS
View related parts
Chevrolet Trailblazer Coolant Temperature Sensor, Black Part Number: 12608814
$30.66 MSRP: $57.58
You Save: $26.92 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Engine Coolant Temperature *Ite Or Black; Engine Coolant Temperature Sensor; Temperature Sensor; Temperature Sending Unit; Coolant Temperature Sensor; Engine Oil Pressure/Temperature Sensor; Computer Control Sensors
- Replaces: 15369305, 25037062, 12191170, 15326388
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Chevrolet Trailblazer | Base, LS, LT, SS | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Trailblazer Coolant Temperature Sensor Part Number: 12601050
$27.86 MSRP: $52.32
You Save: $24.46 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor, Engine Coolant Temperature; Temperature Sending Unit; Sensor, Coolant Temperature (Engine Unit); Sensor, Computer Control Sensors
- Replaces: 12609558, 12586299, 12590959
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Chevrolet Trailblazer | Base, LS, LT | 6 Cyl 4.2 L GAS
View related parts
Chevrolet Trailblazer Coolant Temperature Sensor Part Number: 55489870
$6.00 MSRP: $9.41
You Save: $3.41 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Engine Coolant Temperature Sensor; Temperature Sensor; Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | ACTIV, LS, LT, RS | 3 Cyl 1.3 L GAS
View related parts
Chevrolet Trailblazer Coolant Temperature Sensor Part Number: 55497116
$6.93 MSRP: $12.94
You Save: $6.01 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Engine Coolant Temperature (Part Of Coolin; Engine Coolant Temperature Sensor; Temperature Sensor; Coolant Temperature Sensor; Drive Motor Battery Cooling Sensor.
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | ACTIV, LS, LT, RS | 3 Cyl 1.3 L GAS
View related parts
Chevrolet Trailblazer Coolant Temperature Sensor Part Number: 55488246
$5.40 MSRP: $9.78
You Save: $4.38 (45%)
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Engine Coolant Temperature Sensor; Temperature Sensor; Sensor, Coolant Temperature (Engine Unit); Sensor, Transmission Oil Cooler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | ACTIV, LS, LT, RS | 3 Cyl 1.3 L GAS
View related parts
Chevrolet Trailblazer Coolant Temperature Sensor Part Number: 19244715
$43.71 MSRP: $81.56
You Save: $37.85 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Engine Coolant Temperature; Temperature Sending Unit; Sensor, Coolant Temperature (Engine Unit); Sensor, Computer Control Sensors
- Replaces: 12564512
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 Chevrolet Trailblazer | LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS

Chevrolet Trailblazer Coolant Temperature Sensor

Want to cut long-term maintenance and repair costs? Choose OEM Coolant Temperature Sensor. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet Trailblazer parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Trailblazer Coolant Temperature Sensor includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

Chevrolet Trailblazer Coolant Temperature Sensor is used to regulate engine coolant temperature, to maintain efficiency of working in the motor. With the assistance of the sensor, the temperature is recorded instantaneously to ensure that the engine does not lose its competency and output regularly. It is not stated exactly which Trailblazer models contain which style of Coolant Temperature Sensor, but it is known that there may be many different styles. The primary function remains consistent: to allow correct measurements of the coolant temperature which is vital for efficient control of the engine. Therefore it can be realized that this sensor is essential in the overall running and durability of the vehicle hence plays an important role in the automotive system.

Chevrolet Trailblazer Coolant Temperature Sensor Parts Questions & Experts Answers

Coolant Temperature Sensor, Black
12608814
Q: How to replace the Engine Coolant Temperature Sensor on Chevrolet Trailblazer?
A:
To replace Engine Coolant Temperature Sensor, simply turn OFF the ignition and lift the vehicle to a desirable support level. Flushing the cooling system below the ECT sensor, then lower the vehicle. Disconnect the electrical connector of the engine coolant temperature (ECT) sensor and remove the ECT sensor. For installation, apply ECT sensor threads with sealer GM P/N 12346004 (Canadian P/N 10953480) or analog, and fix the ECT sensor and tighten it to 20 N.m (15 lb ft). Connect the electrical connector of the ECT sensor along with topping off the engine coolant.