How to replace the Heated Oxygen Sensor (HO2S) Sensor 2 on 2009 GMC Envoy?

In order to replace the Heated Oxygen Sensor (HO2S) Sensor 2, lift the vehicle and hold it. Unscrew the HO2S electrical connector and take out the sensor. Anti-seize is applied to the threads in order to remove it easier in the future. Install the HO2S again, screw it tight, reattach the electrical connection and drop the car.

OEM 2009 GMC Envoy Oxygen Sensor

Oxygen O2 Sensor

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5 Oxygen Sensors found

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2009 GMC Envoy Oxygen Sensor Part Number: 12592591
$39.35 MSRP: $79.91
You Save: $40.56 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.2 x 3.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12592591
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2009 GMC Envoy Submodels:
- SLE, SLT | 6 Cyl 4.2 L GAS
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2009 GMC Envoy Oxygen Sensor Part Number: 12604575
$93.88 MSRP: $190.68
You Save: $96.80 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.1 x 3.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12604575
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2009 GMC Envoy Submodels:
- SLE, SLT | 6 Cyl 4.2 L GAS
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2009 GMC Envoy Oxygen Sensor Part Number: 12590749
$47.03 MSRP: $95.51
You Save: $48.48 (51%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.0 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12590749
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2009 GMC Envoy Submodels:
- Denali | 8 Cyl 5.3 L GAS
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2009 GMC Envoy Oxygen Sensor, Passenger Side Part Number: 12609477
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 3); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Position: Passenger Side
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.2 x 3.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12609477
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2009 GMC Envoy Submodels:
- Denali | 8 Cyl 5.3 L GAS
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2009 GMC Envoy Oxygen Sensor, Driver Side Part Number: 12612506
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 3); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Position: Driver Side
- Item Weight: 0.50 Pounds
- Item Dimensions: 7.3 x 2.1 x 2.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12612506
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2009 GMC Envoy Submodels:
- Denali | 8 Cyl 5.3 L GAS

2009 GMC Envoy Oxygen Sensor

With a comprehensive array of OEM 2009 GMC Envoy Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2009 GMC Envoy Oxygen Sensor are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2009 GMC Envoy Oxygen Sensor Parts and Q&A

Q: How to replace the Heated Oxygen Sensor (HO2S) Sensor 2 on 2009 GMC Envoy?
A: In order to replace the Heated Oxygen Sensor (HO2S) Sensor 2, lift the vehicle and hold it. Unscrew the HO2S electrical connector and take out the sensor. Anti-seize is applied to the threads in order to remove it easier in the future. Install the HO2S again, screw it tight, reattach the electrical connection and drop the car.