How to replace Knock Sensor 2 on 2009 GMC Sierra 1500?

The vehicle requires support before starting replacements on Knock Sensor 2. Disconnect the engine wiring harness electrical connector from the knock sensor while removing the knock sensor bolt (739) and the knock sensor (718). Position the knock sensor (718) to the engine block finally install the knock sensor bolt (739) and tighten it to 25 Nm (18 lb ft). Connect the engine wiring harness electrical connector to the knock sensor as the final step.

OEM 2009 GMC Sierra 1500 Knock Sensor

Engine Knock Sensor

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2 Knock Sensors found

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2009 GMC Sierra 1500 Knock Sensor Part Number: 12623730
$13.47 MSRP: $25.30
You Save: $11.83 (47%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaces: 12570125
- Item Weight: 0.50 Pounds
- Item Dimensions: 2.7 x 2.5 x 1.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12623730
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2009 GMC Sierra 1500 Submodels:
- Denali, Hybrid, SL, SLE, SLT, 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, 8 Cyl 6.2 L GAS
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2009 GMC Sierra 1500 Knock Sensor Part Number: 12600327
$14.15 MSRP: $26.57
You Save: $12.42 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Item Weight: 0.50 Pounds
- Item Dimensions: 7.8 x 2.3 x 1.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12600327
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2009 GMC Sierra 1500 Submodels:
- WT | 6 Cyl 4.3 L GAS

2009 GMC Sierra 1500 Knock Sensor

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2009 GMC Sierra 1500 Knock Sensor Parts and Q&A

Q: How to replace Knock Sensor 2 on 2009 GMC Sierra 1500?
A: The vehicle requires support before starting replacements on Knock Sensor 2. Disconnect the engine wiring harness electrical connector from the knock sensor while removing the knock sensor bolt (739) and the knock sensor (718). Position the knock sensor (718) to the engine block finally install the knock sensor bolt (739) and tighten it to 25 Nm (18 lb ft). Connect the engine wiring harness electrical connector to the knock sensor as the final step.