How to replace the Heated Oxygen Sensor (HO2S) for Bank 2 Sensor 1 on GMC Sierra 1500 Classic?

A proper vehicle support system must be implemented before starting the HO2S for bank 2 sensor 1 replacement process. Gently separating the HO2S from its connector requires removing its harness clip before unclipping the sensor from the harness. After removing the connector position assurance retainer, disconnect the HO2S electrical connection users can proceed to remove the bank 2 sensor 1 HO2S unit. Installation of old HO2S requires threads to be treated with anti-seize compound GM P/N 12377953 equivalent to provide easier removal. This compound consists of liquid graphite and glass beads. Affix the bank 2 HO2S while ensuring it reaches 42 N.m tightening torque (31 lb ft). Following the repair of the bank 2 HO2S connect the HO2S electrical connector then install the CPA retainer before reattaching the HO2S to the harness with its clip and lowering the vehicle.

OEM GMC Sierra 1500 Classic Oxygen Sensor

Oxygen O2 Sensor

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6 Oxygen Sensors found

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GMC Sierra 1500 Classic 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:
- 2007 GMC Sierra 1500 Classic | Denali, SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Classic Oxygen Sensor Part Number: 19209808
$72.40 MSRP: $147.04
You Save: $74.64 (51%)
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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:
- 2007 GMC Sierra 1500 Classic | Denali, SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Classic Oxygen Sensor Part Number: 12599866
$62.61 MSRP: $127.15
You Save: $64.54 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 1500 Classic | Hybrid, SL, SLE, SLT, WT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS
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GMC Sierra 1500 Classic 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:
- 2007 GMC Sierra 1500 Classic | Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 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
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GMC Sierra 1500 Classic 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:
- 2007 GMC Sierra 1500 Classic | Denali, SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Classic Oxygen Sensor Part Number: 19209815
$102.18 MSRP: $182.46
You Save: $80.28 (44%)
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Replaces: 12590847
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 1500 Classic | SL, SLE, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS

GMC Sierra 1500 Classic Oxygen Sensor

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GMC Sierra 1500 Classic Oxygen Sensor Parts and Q&A

Oxygen Sensor
12572705
Q: How to replace the Heated Oxygen Sensor (HO2S) for Bank 2 Sensor 1 on GMC Sierra 1500 Classic?
A:
A proper vehicle support system must be implemented before starting the HO2S for bank 2 sensor 1 replacement process. Gently separating the HO2S from its connector requires removing its harness clip before unclipping the sensor from the harness. After removing the connector position assurance retainer, disconnect the HO2S electrical connection users can proceed to remove the bank 2 sensor 1 HO2S unit. Installation of old HO2S requires threads to be treated with anti-seize compound GM P/N 12377953 equivalent to provide easier removal. This compound consists of liquid graphite and glass beads. Affix the bank 2 HO2S while ensuring it reaches 42 N.m tightening torque (31 lb ft). Following the repair of the bank 2 HO2S connect the HO2S electrical connector then install the CPA retainer before reattaching the HO2S to the harness with its clip and lowering the vehicle.