How to replace Knock Sensor 1 on Chevrolet Silverado 1500?

Start by correctly elevating and supporting the vehicle before beginning sensor knock 1 replacement. When necessary you should first detach and remove the oil pan skid plate along with its retaining bolts. Begin by removing the protective bolt of the knock sensor and the insulation before aligning the buckle of the timing chain in such a position. As for the installation, ensure the timing chain is below the knock sensor point. The first step involves disconnecting the electrical connector from the engine wiring harness which serves the knock sensor and using a socket wrench to remove both the bolt and sensor from its block. Position the knock sensor to the front section of the engine block before fixing it with a bolt that reaches 25 Nm (18 lb ft). Connect the engine wiring harness electrical connector to the knock sensor position the knock sensor sleeve in proper placement over the knock sensor. Secure the knock sensor heat shield onto the engine block after setting the bolt at a torque level of 10 Nm (89 lb in). After replacing the skid plate users should return the vehicle to its initial position and secure all corresponding bolts at a torque of 28 Nm (21 lb ft).

OEM Chevrolet Silverado 1500 Knock Sensor

Engine Knock Sensor

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Chevrolet Silverado 1500 Knock Sensor
Part Number: 12623730
$13.47 MSRP: $25.30
You Save: $11.83 (47%)
Ships in 1-2 Business Days
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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:
- 2007-2013 Chevrolet Silverado 1500 | Hybrid, LS, LT, LTZ, WT, XFE | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX
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Chevrolet Silverado 1500 Knock Sensor
Part Number: 21024981
$31.97 MSRP: $60.05
You Save: $28.08 (47%)
Ships in 1 Business Day
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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:
- 2001-2004 Chevrolet Silverado 1500 | Base, LS, LT, WT | 6 Cyl 4.3 L GAS
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Chevrolet Silverado 1500 Knock Sensor
Part Number: 12623095
$22.97 MSRP: $43.16
You Save: $20.19 (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:
- 2014-2023 Chevrolet Silverado 1500 | Custom, Custom Trail Boss, High Country, LS, LT, LT Trail Boss, LTZ, PPV, RST, SSV, WT, ZR2 | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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Chevrolet Silverado 1500 Knock Sensor
Part Number: 12589867
$64.53 MSRP: $131.06
You Save: $66.53 (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:
- 1999-2006 Chevrolet Silverado 1500 | Base, Hybrid, LS, LT, SS, WT, Z71 Off-Road | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Silverado 1500 Knock Sensor
Part Number: 12590195
$22.72 MSRP: $42.39
You Save: $19.67 (47%)
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:
- 2005-2006 Chevrolet Silverado 1500 | Base, LS, LT, WT | 6 Cyl 4.3 L GAS
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Chevrolet Silverado 1500 Knock Sensor
Part Number: 12663209
$4.19 MSRP: $7.57
You Save: $3.38 (45%)
Ships in 1-2 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:
- 2019-2023 Chevrolet Silverado 1500 | Custom, Custom Trail Boss, LT, LT Trail Boss, RST, WT | 4 Cyl 2.7 L GAS
View related parts
Chevrolet Silverado 1500 Knock Sensor
Part Number: 12600327
$14.61 MSRP: $27.43
You Save: $12.82 (47%)
Ships in 1 Business Day
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:
- 2007-2013 Chevrolet Silverado 1500 | LS, WT | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Silverado 1500 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:
- 1999-2000 Chevrolet Silverado 1500 | Base, LS, LT | 6 Cyl 4.3 L GAS

Chevrolet Silverado 1500 Knock Sensor

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Chevrolet Silverado 1500 Knock Sensor Parts Questions & Experts Answers

Knock Sensor
12623730
Q: How to replace Knock Sensor 1 on Chevrolet Silverado 1500?
A: Start by correctly elevating and supporting the vehicle before beginning sensor knock 1 replacement. When necessary you should first detach and remove the oil pan skid plate along with its retaining bolts. Begin by removing the protective bolt of the knock sensor and the insulation before aligning the buckle of the timing chain in such a position. As for the installation, ensure the timing chain is below the knock sensor point. The first step involves disconnecting the electrical connector from the engine wiring harness which serves the knock sensor and using a socket wrench to remove both the bolt and sensor from its block. Position the knock sensor to the front section of the engine block before fixing it with a bolt that reaches 25 Nm (18 lb ft). Connect the engine wiring harness electrical connector to the knock sensor position the knock sensor sleeve in proper placement over the knock sensor. Secure the knock sensor heat shield onto the engine block after setting the bolt at a torque level of 10 Nm (89 lb in). After replacing the skid plate users should return the vehicle to its initial position and secure all corresponding bolts at a torque of 28 Nm (21 lb ft).