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

If you need to replace the Heated Oxygen Sensor (HO2S) for Bank 1 Sensor 1, first lift and hold the vehicle. For a 2-wheel drive (2WD), remove the disconnect connector position assurance (CPA) retainer and then disconnect the HO2S pigtail electrical connector from the engine wiring harness electrical connector. For a 4-wheel drive (4WD), disconnect the CPA retainer, disconnect the event husk electrical SlinkySnap connection from the HO2S pigtail electrical connector. Disconnect the HO2S pigtail electrical connector clip from the fuel line bracket and then disconnect the HO2S. When reinstalling, if putting back the old sensor, apply anti-seize compound GM P/N 12377953 or equivalent, since a special anti-seize compound, which is a blend of liquid graphite and glass beads, is applied on the HO2S threads to help with easy removal. Install the HO2S and secure it with 42 N.m (31 lb ft). For the 4WD, install the "HO2S pigtail electrical connector clip" to the "fuel line bracket," connecting the "engine wiring harness electrical connector" at the "HO2S pigtail electrical connector," then install the "CPA retainer." In the case of a 2WD, connect the HO2S pigtail electrical connector to the engine wiring harness electrical connector, and then connect the CPA retainer before lowering 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
$49.77 MSRP: $101.10
You Save: $51.33 (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 | WT | 6 Cyl 4.3 L GAS
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GMC Sierra 1500 Oxygen Sensor, Driver Side
Part Number: 19209812
$72.70 MSRP: $147.66
You Save: $74.96 (51%)
Ships in 1-2 Business Days
ADD TO CART
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
$66.42 MSRP: $134.91
You Save: $68.49 (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:
- 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
$50.56 MSRP: $102.72
You Save: $52.16 (51%)
Ships in 1-2 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:
- 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
$55.19 MSRP: $112.10
You Save: $56.91 (51%)
Ships in 1-2 Business Days
ADD TO CART
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
$54.85 MSRP: $111.40
You Save: $56.55 (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
View related parts
GMC Sierra 1500 Oxygen Sensor
Part Number: 12572705
$88.71 MSRP: $180.18
You Save: $91.47 (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
View related parts
GMC Sierra 1500 Oxygen Sensor
Part Number: 12599866
$68.20 MSRP: $138.49
You Save: $70.29 (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
$40.26 MSRP: $81.76
You Save: $41.50 (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
View related parts
GMC Sierra 1500 Oxygen Sensor
Part Number: 12587785
$52.20 MSRP: $106.02
You Save: $53.82 (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
View related parts
GMC Sierra 1500 Oxygen Sensor
Part Number: 12589321
$71.00 MSRP: $144.20
You Save: $73.20 (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
View related parts
GMC Sierra 1500 Oxygen Sensor
Part Number: 12583804
$56.19 MSRP: $114.12
You Save: $57.93 (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
View related parts
GMC Sierra 1500 Oxygen Sensor
Part Number: 12670253
$38.96 MSRP: $79.14
You Save: $40.18 (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
View related parts
GMC Sierra 1500 Oxygen Sensor
Part Number: 19355306
$60.86 MSRP: $123.60
You Save: $62.74 (51%)
Ships in 1-2 Business Days
ADD TO CART
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:
- 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
$79.31 MSRP: $161.10
You Save: $81.79 (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
View related parts
GMC Sierra 1500 Oxygen Sensor
Part Number: 12705534
$54.24 MSRP: $96.86
You Save: $42.62 (44%)
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
View related parts
GMC Sierra 1500 Oxygen Sensor, Passenger Side
Part Number: 12702181
$46.70 MSRP: $83.40
You Save: $36.70 (44%)
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

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GMC Sierra 1500 Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor
12599866
Q: How to replace the Heated Oxygen Sensor (HO2S) for Bank 1 Sensor 1 on GMC Sierra 1500?
A: If you need to replace the Heated Oxygen Sensor (HO2S) for Bank 1 Sensor 1, first lift and hold the vehicle. For a 2-wheel drive (2WD), remove the disconnect connector position assurance (CPA) retainer and then disconnect the HO2S pigtail electrical connector from the engine wiring harness electrical connector. For a 4-wheel drive (4WD), disconnect the CPA retainer, disconnect the event husk electrical SlinkySnap connection from the HO2S pigtail electrical connector. Disconnect the HO2S pigtail electrical connector clip from the fuel line bracket and then disconnect the HO2S. When reinstalling, if putting back the old sensor, apply anti-seize compound GM P/N 12377953 or equivalent, since a special anti-seize compound, which is a blend of liquid graphite and glass beads, is applied on the HO2S threads to help with easy removal. Install the HO2S and secure it with 42 N.m (31 lb ft). For the 4WD, install the "HO2S pigtail electrical connector clip" to the "fuel line bracket," connecting the "engine wiring harness electrical connector" at the "HO2S pigtail electrical connector," then install the "CPA retainer." In the case of a 2WD, connect the HO2S pigtail electrical connector to the engine wiring harness electrical connector, and then connect the CPA retainer before lowering the vehicle.