How to service the Coolant Temperature Sensor/Switch on GMC C2500?

In order to change the Coolant Temperature Sensor/Switch, first, raise the vehicle and drain out engine cogolent. After lowering the vehicle take the wire connector off the Engine Coolant Temperature (ECT) sensor and remove the ECT sensor. Before installation, apply sealer GM P/N 12346004 or an equivalent to the ECT sensor threads, then install the ECT sensor and torque it to 20 N.m (15 lb ft). Reattach the ECT sensor electrical connector, refill the engine with the coolant, and test the engine to identify possible leaks, before checking the engine coolant once more.

OEM GMC C2500 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).

10 Coolant Temperature Sensors found

View related parts
GMC C2500 Temperature Sending Unit Part Number: 25037333
$34.45 MSRP: $69.98
You Save: $35.53 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1995 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Coolant Temperature Sensor Part Number: 25037332
$41.23 MSRP: $77.42
You Save: $36.19 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor, Coolant Temperature (Engine Unit); Temperature Sensor; Coolant Sensor; Temperature Sending Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-2000 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
View related parts
GMC C2500 Coolant Temperature Sensor Part Number: 15326386
$24.96 MSRP: $46.88
You Save: $21.92 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Engine Coolant Temperature; Air Charge Temperature Sensor; Intake Air Temperature Sensor.; Temperature Sensor; Manifold Pressure Sensor; Oil Pressure Unit; Fan Switch; Other Sensors
- Replaces: 12146312, 25036979
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-2000, 1985-1986 GMC C2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Temperature Sending Unit Part Number: 8993146
Product Specifications
- Other Name: Sensor Assembly-Engine Wtr Temperature (1 Terminal); Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990, 1984-1986 GMC C2500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SLE, Sierra SLX | 6 Cyl 4.1 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
View related parts
GMC C2500 Temperature Sending Unit Part Number: 25036512
Product Specifications
- Other Name: Switch; Switch, Coolant Temperature (Engine Unit)
- Replaces: 25036507
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Temperature Sending Unit Part Number: 12554253
Product Specifications
- Other Name: Sensor, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 7.4 L GAS
View related parts
GMC C2500 Temperature Sending Unit Part Number: 14040900
Product Specifications
- Other Name: Switch Assembly, Engine Metal Temperature Indicator; Switch, Engine Coolant Temperature ( Engine Unit); Switch, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS
View related parts
GMC C2500 Temperature Sending Unit Part Number: 25037177
Product Specifications
- Other Name: Switch, Engine Coolant Temperature Indicator; Switch, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 8 Cyl 6.2 L DIESEL
View related parts
GMC C2500 Temperature Sending Unit Part Number: 25037175
Product Specifications
- Other Name: Switch Assembly, Engine Coolant Temperature Indicator; Switch, Engine Coolant Temperature ( Engine Unit); Switch, Coolant Temperature (Engine Unit)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
View related parts
GMC C2500 Fan Switch Part Number: 12556263
Product Specifications
- Other Name: Sensor, Coolant Temperature (Engine Unit); Temperature Sending Unit
- Replaces: 12554641
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS

GMC C2500 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 GMC C2500 parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM GMC C2500 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.

GMC C2500 Coolant Temperature Sensor is one of the little yet very important elements that impact on the performance of the GMC C2500 vehicles. Being one of the most reliable and effective sensors this device properly measures the temperature of the coolant and enables the engine to work as planned and without danger. The Coolant Temperature Sensor ideal for different GMC C2500 series manufactured from 1960 to 1998, improves the functional capability of the car by giving instant information to avoid excessive heat and resultant damage to the engine. This is rather crucial due to the fact that GMC C2500 is well known for its ruggedness and its ability in delivering optimal result in challenging operations. In the automotive market, the Coolant Temperature Sensor is designed to be strong and precisely engineered to last long and to give its prime performance under different driving situations. Used in the regulation of the engine temperature, the GMC C2500 Coolant Temperature Sensor also plays a role in saving fuel while at the same time reducing cases of overheating. This critical component also proves themselves an ongoing example of GMC's devotion to their products' quality and constant improvements, which makes GMC an unquestioned choice for people who look for dependable and powerful vehicles for their C2500. By being built to work just as a GMC C2500's part with its integration capacity with the entire trucking system, the Coolant Temperature Sensor is one of the most crucial components of the vehicle.

GMC C2500 Coolant Temperature Sensor Parts Questions & Experts Answers

Coolant Temperature Sensor
15326386
Q: How to service the Coolant Temperature Sensor/Switch on GMC C2500?
A:
In order to change the Coolant Temperature Sensor/Switch, first, raise the vehicle and drain out engine cogolent. After lowering the vehicle take the wire connector off the Engine Coolant Temperature (ECT) sensor and remove the ECT sensor. Before installation, apply sealer GM P/N 12346004 or an equivalent to the ECT sensor threads, then install the ECT sensor and torque it to 20 N.m (15 lb ft). Reattach the ECT sensor electrical connector, refill the engine with the coolant, and test the engine to identify possible leaks, before checking the engine coolant once more.