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

The replacement of the Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 requires a vehicle lift to support the vehicle's body. Disconnect both the fuel composition sensor electric connector and connector position assurance (CPA) retainer if present. Remove the HO2S electrical connector from its fuel line clip when a fuel composition sensor exists on the vehicle. Separate the HO2S electrical connector from the vehicle in models with either a 4.8L or 5.3L engine while 6.0L engines require the same action. Remove the HO2S. New sensors arrive pre-coated with anti-seize compound GM P/N 12377953 so use this product to coat old sensor threads when reinstalling. Install the HO2S utilizing a torque of 42 N.m (31 lb ft). The electrical connector of the HO2S needs attachment for both 6.0L or 4.8L and 5.3L motor vehicles. To install the HO2S electrical connector you must connect it to the fuel line clip before removing the CPA retainer to reconnect the fuel composition sensor electrical connector. Finally, lower the vehicle.

OEM GMC Sierra 1500 Oxygen Sensor

Oxygen O2 Sensor

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26 Oxygen Sensors found

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GMC Sierra 1500 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:
- 2003-2007 GMC Sierra 1500 | Base, Denali, 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 GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Oxygen Sensor Part Number: 12609456
$50.77 MSRP: $103.12
You Save: $52.35 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 3); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2013 GMC Sierra 1500 | WT | 6 Cyl 4.3 L GAS
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GMC Sierra 1500 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:
- 2003-2007 GMC Sierra 1500 | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Oxygen Sensor Part Number: 12565397
$67.75 MSRP: $137.61
You Save: $69.86 (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 1500 | C3, Denali | 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Oxygen Sensor Part Number: 19178942
$56.64 MSRP: $159.48
You Save: $102.84 (65%)
ADD TO CART
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 1500 | C3, Denali | 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Oxygen Sensor Part Number: 12576131
$51.58 MSRP: $104.78
You Save: $53.20 (51%)
Ships in 1-2 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:
- 2005 GMC Sierra 1500 | Hybrid | 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV)
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GMC Sierra 1500 Oxygen Sensor Part Number: 12659516
$56.30 MSRP: $114.34
You Save: $58.04 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Rear Oxygen Sensor; Front Oxygen Sensor; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Replaces: 12637679
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Oxygen Sensor Part Number: 12609457
$50.35 MSRP: $102.26
You Save: $51.91 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 3); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2013 GMC Sierra 1500 | 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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GMC Sierra 1500 Oxygen Sensor Part Number: 12572705
$90.49 MSRP: $183.78
You Save: $93.29 (51%)
Ships in 1 Business Day
ADD TO CART
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:
- 2003-2007 GMC Sierra 1500 | Base, Denali, 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 GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 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:
- 2006-2007 GMC Sierra 1500 | 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 Oxygen Sensor, Passenger Side Part Number: 12687606
$41.06 MSRP: $83.40
You Save: $42.34 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 2 S; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2023 GMC Sierra 1500 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Oxygen Sensor Part Number: 12587785
$50.59 MSRP: $102.74
You Save: $52.15 (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:
- 2005 GMC Sierra 1500 | Base, Hybrid, 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 Oxygen Sensor Part Number: 12589321
$72.41 MSRP: $147.08
You Save: $74.67 (51%)
Ships in 1-3 Business Days
ADD TO CART
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:
- 2006-2013 GMC Sierra 1500 | 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, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Oxygen Sensor Part Number: 12583804
$57.31 MSRP: $116.40
You Save: $59.09 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2013 GMC Sierra 1500 | 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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GMC Sierra 1500 Oxygen Sensor Part Number: 12670253
$39.74 MSRP: $80.72
You Save: $40.98 (51%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Lower Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2023 GMC Sierra 1500 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 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:
- 1999-2002 GMC Sierra 1500 | Base, C3, Denali, HT, 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 GAS, 8 Cyl 6.0 L GAS
View related parts
GMC Sierra 1500 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:
- 2001-2002 GMC Sierra 1500 | C3, Denali | 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Oxygen Sensor Part Number: 12705534
$54.59 MSRP: $98.80
You Save: $44.21 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Replaced by: 12736854
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023 GMC Sierra 1500 | Elevation, Pro, SLE | 4 Cyl 2.7 L GAS
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GMC Sierra 1500 Oxygen Sensor, Passenger Side Part Number: 12702181
$47.00 MSRP: $85.06
You Save: $38.06 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 2 S; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Position: Passenger Side
- Replaces: 12688831, 12697487
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 GMC Sierra 1500 | Base | 6 Cyl 4.3 L GAS
View related parts
GMC Sierra 1500 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:
- 2006-2008 GMC Sierra 1500 | SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L GAS

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GMC Sierra 1500 Oxygen Sensor

Want to cut long-term maintenance and repair costs? Choose OEM Oxygen Sensor. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine GMC Sierra 1500 parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM GMC Sierra 1500 Oxygen Sensor includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

GMC Sierra 1500 Oxygen Sensor Parts and Q&A

Oxygen Sensor, Driver Side
19209812
Q: How to replace the Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 on GMC Sierra 1500?
A:
The replacement of the Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 requires a vehicle lift to support the vehicle's body. Disconnect both the fuel composition sensor electric connector and connector position assurance (CPA) retainer if present. Remove the HO2S electrical connector from its fuel line clip when a fuel composition sensor exists on the vehicle. Separate the HO2S electrical connector from the vehicle in models with either a 4.8L or 5.3L engine while 6.0L engines require the same action. Remove the HO2S. New sensors arrive pre-coated with anti-seize compound GM P/N 12377953 so use this product to coat old sensor threads when reinstalling. Install the HO2S utilizing a torque of 42 N.m (31 lb ft). The electrical connector of the HO2S needs attachment for both 6.0L or 4.8L and 5.3L motor vehicles. To install the HO2S electrical connector you must connect it to the fuel line clip before removing the CPA retainer to reconnect the fuel composition sensor electrical connector. Finally, lower the vehicle.