How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 on Chevrolet Avalanche 2500?

To replace Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2, initially, lift up and adequately support the vehicle. Remove the connector position assurance (CPA) retainer and remove the HO2S sensor electr cal connector. Remove the HO2S . When installing, also ensure that a special anti-seize compound will be applied to the HO2S threads; this compound includes liquid graphite and glass bead, whereas new or service replacement sensors already contain this. If replacing the old sensor, lubricate the threads with anti-seize compound GM P/N 12377953 or something similar. Install the HO2S and tighten it to 42 N.m (31 lb ft). Next, connect the HO2S electrical connector and the CPA retainer while lowering the vehicle.

OEM Chevrolet Avalanche 2500 Oxygen Sensor

Oxygen O2 Sensor

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12 Oxygen Sensors found

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Chevrolet Avalanche 2500 Oxygen Sensor Part Number: 19178961
$61.43 MSRP: $124.77
You Save: $63.34 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25315809
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Avalanche 2500 | Base | 8 Cyl 8.1 L GAS
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Chevrolet Avalanche 2500 Oxygen Sensor, Driver Side Part Number: 19209812
$78.63 MSRP: $147.66
You Save: $69.03 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Position: Driver Side
- Replaces: 19210423, 25333817
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 Chevrolet Avalanche 2500 | Base, LS, LT | 8 Cyl 8.1 L GAS
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Chevrolet Avalanche 2500 Oxygen Sensor Part Number: 19209808
$72.40 MSRP: $147.04
You Save: $74.64 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Replaces: 12575389, 19256731, 25333812, 12583806, 19210711, 12573168
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Avalanche 2500 | Base, LS, LT | 8 Cyl 8.1 L GAS
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Chevrolet Avalanche 2500 Oxygen Sensor Part Number: 12599866
$62.61 MSRP: $127.15
You Save: $64.54 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Avalanche 2500 | LS, LT | 8 Cyl 8.1 L GAS
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Chevrolet Avalanche 2500 Oxygen Sensor Part Number: 12589321
$72.41 MSRP: $147.08
You Save: $74.67 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Avalanche 2500 | LS, LT | 8 Cyl 8.1 L GAS
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Chevrolet Avalanche 2500 Oxygen Sensor, Driver Side Part Number: 12572707
$70.50 MSRP: $143.19
You Save: $72.69 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 3); Sensor, Computer Control Sensors
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Avalanche 2500 | Base, LS, LT | 8 Cyl 8.1 L GAS
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Chevrolet Avalanche 2500 Oxygen Sensor Part Number: 12572705
$90.49 MSRP: $183.78
You Save: $93.29 (51%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Avalanche 2500 | Base, LS, LT | 8 Cyl 8.1 L GAS
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Chevrolet Avalanche 2500 Oxygen Sensor Part Number: 12565397
$67.75 MSRP: $137.61
You Save: $69.86 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 12563346
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Avalanche 2500 | Base | 8 Cyl 8.1 L GAS
View related parts
Chevrolet Avalanche 2500 Oxygen Sensor, Driver Side Part Number: 19355311
$80.91 MSRP: $164.32
You Save: $83.41 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Position: Driver Side
- Replaces: 19178923, 25315815
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Avalanche 2500 | Base | 8 Cyl 8.1 L GAS
View related parts
Chevrolet Avalanche 2500 Heated Oxygen Sensor Assembly Part Number: 19355306
$57.54 MSRP: $116.86
You Save: $59.32 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Oxygen Sensor; Sensor, Computer Control Sensors
- Replaces: 19178116, 25163080, 25312201
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Avalanche 2500 | Base | 8 Cyl 8.1 L GAS
View related parts
Chevrolet Avalanche 2500 Oxygen Sensor, Driver Side Part Number: 12565415
$54.79 MSRP: $170.94
You Save: $116.15 (68%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Avalanche 2500 | Base | 8 Cyl 8.1 L GAS
View related parts
Chevrolet Avalanche 2500 Oxygen Sensor Part Number: 12573005
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 Chevrolet Avalanche 2500 | Base, LS, LT | 8 Cyl 8.1 L GAS

Chevrolet Avalanche 2500 Oxygen Sensor

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Chevrolet Avalanche 2500 Oxygen Sensor Parts and Q&A

Oxygen Sensor
12599866
Q: How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 on Chevrolet Avalanche 2500?
A:
To replace Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2, initially, lift up and adequately support the vehicle. Remove the connector position assurance (CPA) retainer and remove the HO2S sensor electr cal connector. Remove the HO2S . When installing, also ensure that a special anti-seize compound will be applied to the HO2S threads; this compound includes liquid graphite and glass bead, whereas new or service replacement sensors already contain this. If replacing the old sensor, lubricate the threads with anti-seize compound GM P/N 12377953 or something similar. Install the HO2S and tighten it to 42 N.m (31 lb ft). Next, connect the HO2S electrical connector and the CPA retainer while lowering the vehicle.