How to replace the Knock Sensor (KS) on Chevrolet Express 2500?

The replacement process starts by removing the Intake Manifold and following up by disconnecting the Knock Sensor (KS) wiring harness assembly and removing the sensor. Tumble the fastener notice before sensor installation followed by ks attachment at 20 n.m torque (15 lb ft). Reattach the wiring harness assembly before intake manifold reinstallation.

Where is the knock sensor located and How to its removal and installation on Chevrolet Express 2500?

The Knock Sensor (KS) is positioned at the top rear part of the engine. Start your work by disconnecting the negative Battery Cable for safety purpose. Then, you need to take out the engine cover and disconnect the ks harness connector. Next, get rid of the ks bolt and remove the ks . To install, first install Knock Sensor bolt and bolt, tighting the Knock Sensor bolt to 25 n.m (18 lb ft). One then connects the ks harness connector and then reinstall the engine cover.

OEM Chevrolet Express 2500 Knock Sensor

Engine Knock 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).

8 Knock Sensors found

View related parts
Chevrolet Express 2500 Knock Sensor Part Number: 12623730
$13.47 MSRP: $25.30
You Save: $11.83 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaces: 12570125
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2020 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Knock Sensor Part Number: 21024981
$32.61 MSRP: $61.25
You Save: $28.64 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaced by: 19434673
- Replaces: 21024729
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 Chevrolet Express 2500 | Base, LS | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Knock Sensor Part Number: 12623095
$23.43 MSRP: $44.02
You Save: $20.59 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2024 Chevrolet Express 2500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 6.6 L GAS
View related parts
Chevrolet Express 2500 Knock Sensor Part Number: 12589867
$62.53 MSRP: $127.00
You Save: $64.47 (51%)
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaces: 10456603
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2007 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Knock Sensor Part Number: 10456288
$45.57 MSRP: $92.57
You Save: $47.00 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); ESC Sensor; Sensor, Engine Crankcase Ventilator
- Replaces: 10456018
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express 2500 | Base, LS | 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
View related parts
Chevrolet Express 2500 Knock Sensor Part Number: 10456287
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Control Module; ESC Sensor; Sensor
- Replaces: 10456017
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express 2500 | Base, LS | 8 Cyl 5.0 L GAS
View related parts
Chevrolet Express 2500 Knock Sensor Part Number: 10456075
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 Chevrolet Express 2500 | Base | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Knock Sensor Part Number: 12590195
$23.74 MSRP: $42.39
You Save: $18.65 (44%)
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Express 2500 | Base | 6 Cyl 4.3 L GAS

Chevrolet Express 2500 Knock Sensor

Want to cut long-term maintenance and repair costs? Choose OEM Knock Sensor. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet Express 2500 parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Express 2500 Knock 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 Express 2500 Knock Sensor Parts and Q&A

Knock Sensor
12623730
Q: How to replace the Knock Sensor (KS) on Chevrolet Express 2500?
A:
The replacement process starts by removing the Intake Manifold and following up by disconnecting the Knock Sensor (KS) wiring harness assembly and removing the sensor. Tumble the fastener notice before sensor installation followed by ks attachment at 20 n.m torque (15 lb ft). Reattach the wiring harness assembly before intake manifold reinstallation.
Knock Sensor
21024981
Q: Where is the knock sensor located and How to its removal and installation on Chevrolet Express 2500?
A:
The Knock Sensor (KS) is positioned at the top rear part of the engine. Start your work by disconnecting the negative Battery Cable for safety purpose. Then, you need to take out the engine cover and disconnect the ks harness connector. Next, get rid of the ks bolt and remove the ks . To install, first install Knock Sensor bolt and bolt, tighting the Knock Sensor bolt to 25 n.m (18 lb ft). One then connects the ks harness connector and then reinstall the engine cover.