How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 on GMC Sierra 3500?

To change the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1, first lift and support the vehicle properly. De-attach the connector position assurance (CPA) and the HO2S electric connector and un-install the HO2S. In the installation of this sensor, on the threads of it that are being installed, it is evidenced that a special anti-seize compound made of liquid graphite and another of glass beads should be implemented. This compound is pre-applied on new or service replacement sensors. In case of reinstallation of old sensor, coat the threads with anti-seize compound GM P/N 12377953 or equivalent. Put in the HO2S and tighten it to 42 N.m (31 lb ft). Redo the HO2S electrical connector and the CPA retainer and let the vehicle loose.

OEM GMC Sierra 3500 Oxygen Sensor

Oxygen O2 Sensor

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9 Oxygen Sensors found

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GMC Sierra 3500 Oxygen Sensor, Driver Side
Part Number: 19209812
$72.70 MSRP: $147.66
You Save: $74.96 (51%)
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:
- 2003-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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GMC Sierra 3500 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:
- 2003-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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GMC Sierra 3500 Oxygen Sensor
Part Number: 19178942
$56.64 MSRP: $159.48
You Save: $102.84 (65%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25315814
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2002 GMC Sierra 3500 | Base, SL, SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Sierra 3500 Oxygen Sensor, Driver Side
Part Number: 12572707
$69.11 MSRP: $140.39
You Save: $71.28 (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 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
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GMC Sierra 3500 Oxygen Sensor
Part Number: 12572705
$88.71 MSRP: $180.18
You Save: $91.47 (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 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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GMC Sierra 3500 Oxygen Sensor
Part Number: 12565397
$66.42 MSRP: $134.91
You Save: $68.49 (51%)
Ships in 1-2 Business Days
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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:
- 2001-2002 GMC Sierra 3500 | Base, SL, SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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GMC Sierra 3500 Oxygen Sensor, Driver Side
Part Number: 19355311
$79.31 MSRP: $161.10
You Save: $81.79 (51%)
Ships in 1-2 Business Days
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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:
- 2001-2002 GMC Sierra 3500 | Base, SL, SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Sierra 3500 Oxygen Sensor
Part Number: 19355306
$60.86 MSRP: $123.60
You Save: $62.74 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly, Heated Oxygen; Sensor, Computer Control Sensors
- Replaces: 19178116, 25163080, 25312201
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2002 GMC Sierra 3500 | Base, SL, SLE, SLT | 8 Cyl 6.0 L GAS
View related parts
GMC Sierra 3500 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:
- 2001-2002 GMC Sierra 3500 | Base, SL, SLE, SLT | 8 Cyl 8.1 L GAS

GMC Sierra 3500 Oxygen Sensor

Our website offers an extensive catalog of genuine GMC Sierra 3500 Oxygen Sensor at unbeatable prices. Every OEM GMC Sierra 3500 Oxygen Sensor comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

GMC Sierra 3500 Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor, Driver Side
12572707
Q: How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 on GMC Sierra 3500?
A: To change the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1, first lift and support the vehicle properly. De-attach the connector position assurance (CPA) and the HO2S electric connector and un-install the HO2S. In the installation of this sensor, on the threads of it that are being installed, it is evidenced that a special anti-seize compound made of liquid graphite and another of glass beads should be implemented. This compound is pre-applied on new or service replacement sensors. In case of reinstallation of old sensor, coat the threads with anti-seize compound GM P/N 12377953 or equivalent. Put in the HO2S and tighten it to 42 N.m (31 lb ft). Redo the HO2S electrical connector and the CPA retainer and let the vehicle loose.

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