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
$12.33 MSRP: $23.16
You Save: $10.83 (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
$30.83 MSRP: $57.90
You Save: $27.07 (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
$27.32 MSRP: $51.30
You Save: $23.98 (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
$5.88 MSRP: $9.22
You Save: $3.34 (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
$7.10 MSRP: $12.68
You Save: $5.58 (45%)
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
$5.10 MSRP: $9.58
You Save: $4.48 (47%)
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

Our website offers an extensive catalog of genuine Chevrolet Trailblazer Coolant Temperature Sensor at unbeatable prices. Every OEM Chevrolet Trailblazer Coolant Temperature Sensor comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

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.