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

Vehicle support and elevation should become the first step for bank 1 sensor 2 heated Oxygen Sensor (HO2S) replacement. First remove the cpa retainer from the ho2s electrical connector then break its connection to the engine wiring harness electrical connector . Remove the ho2s from the Exhaust Pipe with caution to avoid damaging the pigtail and connectors because sensor performance may suffer from such damage. Apply anti-seize compound gm p/n 12377953 or equivalent with a special liquid graphite and glass bead composition to the ho2s threads to enhance sensor thread extraction before reinstalling the sensor. Tighten the install position of the ho2s on the Exhaust Pipe to 42 n.m (31 lb ft). Connect the ho2s electrical connector to the engine wiring harness electrical connector then place the cpa retainer before lowering the vehicle. The sensor performance requires the vehicle harness connector peripheral seal to stay intact along with protective measures against water entry and damage to wiring from contact cleaners and physical abuse.

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

Maintenance of the heated Oxygen Sensor (HO2S) bank 1 sensor 1 requires initially raising and supporting the vehicle. Before proceeding start by removing the front propeller shaft from the front Differential in case it becomes necessary. Pull off both the connector position assurance (CPA) retainer and disconnect the ho2s electrical connector from its fuel line clip position. Matte hose vehicles that use either the 4.8l or 5.3l engine should first disconnect the ho2s electrical connector . Vehicle owners should disconnect the ho2s electrical connector during sensor replacement on those vehicles with a 6.0l engine yet this step is unnecessary for vehicles with a 4.8l or 5.3l engine. Remove the ho2s. Install anti-seize compound gm p/n 12377953 on threads when using original ho2s, although new sensors arrive with pre-applied coating. Tighten the ho2s to 42 n.m (31 lb-ft) after its installation. For 6.0l engines connect the ho2s electrical connector. Engines with 4.8l or 5.3l require connecting the ho2s electrical connector. You must connect the ho2s electrical connector at the fuel line clip and then remove the cpa retainer before possibly reinstalling the front propeller shaft to the front Differential when you lower the vehicle.

How to replace the Heated Oxygen Sensor - Bank 1 Sensor 1 on GMC Yukon?

In order to replace the heated Oxygen Sensor - bank 1 sensor 1, first, lift and support the vehicle. Remove the front propeller shaft from front Differential, in the case the automobile is 4 wheel driven. Take off the connector position assurance (CPA) retainer and disengage the engine wiring harness electrical connector from the ho2s. Take the clip from the ho2s electrical connector clip from the fuel line clip, then take the ho2s. When installing old sensor, one should coat its thread with anti-seize compound gm p/n 12377953 or equivalent. Replace the ho2s and tighten according to the value of 42 nm (31 lb ft). The engine wiring harness electrical connector should be connected to ho2s and the engine wiring harness electrical connector clip should be fixed to the fuel line clip. Finally, install the cpa retainer and reinstall the front propeller shaft to the front Differential if the vehicle had 4wd, after that, lift the vehicle.

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Oxygen O2 Sensor

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89 Oxygen Sensors found

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GMC Oxygen Sensor
Part Number: 12563848
$45.79 MSRP: $93.00
You Save: $47.21 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 24577046
Fits the following GMC Models:
- Sonoma | 2000-2003 | SL, SLE, SLS | 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS
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GMC Oxygen Sensor
Part Number: 19178930
$65.10 MSRP: $132.24
You Save: $67.14 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Replaces: 25312184, 25165313, 25171579
Fits the following GMC Models:
- Jimmy | 1995 | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- Sonoma | 1994-1995 | SL, SLE, SLS | 6 Cyl 4.3 L GAS
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GMC Oxygen Sensor
Part Number: 12576131
$50.56 MSRP: $102.72
You Save: $52.16 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
Fits the following GMC Models:
- Sierra 1500 | 2005 | Hybrid | 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV)
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GMC Oxygen Sensor
Part Number: 12616125
$68.72 MSRP: $148.56
You Save: $79.84 (54%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
Fits the following GMC Models:
- Acadia | 2009-2011 | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Oxygen Sensor
Part Number: 12573721
$62.49 MSRP: $126.94
You Save: $64.45 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
Fits the following GMC Models:
- Canyon | 2004-2005 | SL, SLE, Z71 Fleet, Z71 SL, Z71 SLE, Z85 SL, Z85 SLE | 4 Cyl 2.8 L GAS, 5 Cyl 3.5 L GAS
- Envoy | 2004 | SLE, SLT | 6 Cyl 4.2 L GAS
- Envoy XL | 2004 | SLE, SLT | 6 Cyl 4.2 L GAS
- Envoy XUV | 2004 | SLE, SLT | 6 Cyl 4.2 L GAS
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GMC Oxygen Sensor
Part Number: 12666612
$44.84 MSRP: $91.05
You Save: $46.21 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Sensor, Computer Control Sensors
Fits the following GMC Models:
- Savana 2500 | 2016-2020 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Savana 3500 | 2016-2020 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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GMC Oxygen Sensor
Part Number: 12639692
$22.81 MSRP: $42.84
You Save: $20.03 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
Fits the following GMC Models:
- Terrain | 2011-2017 | Denali, SL, SLE, SLT | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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GMC Oxygen Sensor
Part Number: 12609456
$49.77 MSRP: $101.10
You Save: $51.33 (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
Fits the following GMC Models:
- Sierra 1500 | 2008-2013 | WT | 6 Cyl 4.3 L GAS
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GMC Oxygen Sensor
Part Number: 12586996
$92.04 MSRP: $186.94
You Save: $94.90 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor
Fits the following GMC Models:
- Envoy | 2005 | SLE, SLT | 6 Cyl 4.2 L GAS
- Envoy XL | 2005 | SLE, SLT | 6 Cyl 4.2 L GAS
- Envoy XUV | 2005 | SLE, SLT | 6 Cyl 4.2 L GAS
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GMC Oxygen Sensor
Part Number: 19178938
$62.31 MSRP: $126.56
You Save: $64.25 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25165314, 25161152, 25312185
Fits the following GMC Models:
- C1500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C1500 Suburban | 1994-1995 | Base, SLE, SLT | 8 Cyl 5.7 L GAS
- C2500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1994-1995 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C3500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- G1500 | 1994-1995 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS
- G2500 | 1994-1995 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- G3500 | 1994-1996 | Magnavan, Rally, Rally Camper Special, Rally STX, Vandura, Vandura Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- K1500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLS, Sierra SLT, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- K1500 Suburban | 1994-1995 | Base, SLE, SLT | 8 Cyl 5.7 L GAS
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GMC Oxygen Sensor, Passenger Side
Part Number: 12687606
$40.26 MSRP: $81.76
You Save: $41.50 (51%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 2 S; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Position: Passenger Side
Fits the following GMC Models:
- Sierra 1500 | 2019-2023 | 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
- Yukon | 2021-2023 | AT4, Denali, SLE, SLT | 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Yukon XL | 2021-2023 | AT4, Denali, SLE, SLT | 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Oxygen Sensor
Part Number: 12679935
$51.94 MSRP: $92.53
You Save: $40.59 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Upper Oxygen Sensor; Sensor, Computer Control Sensors
Fits the following GMC Models:
- Sierra 1500 | 2019-2022 | Base, Elevation, Pro, SLE | 4 Cyl 2.7 L GAS
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GMC Oxygen Sensor
Part Number: 12679885
$43.01 MSRP: $87.36
You Save: $44.35 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Upper Oxygen Sensor; Sensor, Computer Control Sensors
Fits the following GMC Models:
- Savana 2500 | 2021-2024 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 6.6 L GAS
- Savana 3500 | 2021-2024 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 6.6 L GAS
- Sierra 2500 HD | 2020-2024 | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2020-2024 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Oxygen Sensor
Part Number: 19178959
$61.61 MSRP: $125.14
You Save: $63.53 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25165312, 25312179
Fits the following GMC Models:
- Jimmy | 1995 | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- Safari | 1994 | Base, SLE, SLT, SLX | 6 Cyl 4.3 L GAS
- Sonoma | 1995 | SL, SLE, SLS | 6 Cyl 4.3 L GAS
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GMC Oxygen Sensor
Part Number: 12618010
$59.33 MSRP: $120.51
You Save: $61.18 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
Fits the following GMC Models:
- Terrain | 2010-2011 | SLE, SLT | 4 Cyl 2.4 L GAS
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GMC Oxygen Sensor, Passenger Side
Part Number: 12702181
$46.70 MSRP: $83.40
You Save: $36.70 (44%)
Ships in 1-3 Business Days
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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
Fits the following GMC Models:
- Sierra 1500 | 2019-2021 | Base | 6 Cyl 4.3 L GAS
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GMC Oxygen Sensor
Part Number: 12661898
$63.34 MSRP: $128.67
You Save: $65.33 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Lower Oxygen Sensor
- Replaces: 12643903
Fits the following GMC Models:
- Acadia | 2017-2021 | SL, SLE, SLT | 4 Cyl 2.5 L GAS
- Terrain | 2018-2020 | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC 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
Fits the following GMC Models:
- Sierra 1500 | 2001-2002 | C3, Denali | 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2001-2002 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 1999-2002 | Base, SL, SLE, SLT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2001-2002 | Base, SL, SLE, SLT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 3500 | 2001-2002 | Base, SL, SLE, SLT | 8 Cyl 6.0 L GAS
- Yukon | 2001-2002 | Denali | 8 Cyl 6.0 L GAS
- Yukon XL 1500 | 2001-2002 | Denali | 8 Cyl 6.0 L GAS
- Yukon XL 2500 | 2000-2002 | SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Oxygen Sensor
Part Number: 19355310
$57.89 MSRP: $163.00
You Save: $105.11 (65%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly, Heated Oxygen; Sensor, Computer Control Sensors
- Replaces: 19178935, 25312194, 25161128
Fits the following GMC Models:
- Safari | 1996-1999 | Base, SL, SLE, SLT, SLX | 6 Cyl 4.3 L GAS
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GMC Oxygen Sensor
Part Number: 12567254
$54.77 MSRP: $111.24
You Save: $56.47 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
Fits the following GMC Models:
- Sonoma | 2003-2004 | SL, SLS | 6 Cyl 4.3 L GAS

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GMC Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor
12594452
Q: How to replace the Heated Oxygen Sensor (HO2S) for Bank 1 Sensor 2 on GMC Acadia?
A: Vehicle support and elevation should become the first step for bank 1 sensor 2 heated Oxygen Sensor (HO2S) replacement. First remove the cpa retainer from the ho2s electrical connector then break its connection to the engine wiring harness electrical connector . Remove the ho2s from the Exhaust Pipe with caution to avoid damaging the pigtail and connectors because sensor performance may suffer from such damage. Apply anti-seize compound gm p/n 12377953 or equivalent with a special liquid graphite and glass bead composition to the ho2s threads to enhance sensor thread extraction before reinstalling the sensor. Tighten the install position of the ho2s on the Exhaust Pipe to 42 n.m (31 lb ft). Connect the ho2s electrical connector to the engine wiring harness electrical connector then place the cpa retainer before lowering the vehicle. The sensor performance requires the vehicle harness connector peripheral seal to stay intact along with protective measures against water entry and damage to wiring from contact cleaners and physical abuse.
Oxygen Sensor
12572705
Q: How to replace the Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 on GMC Sierra 1500?
A: Maintenance of the heated Oxygen Sensor (HO2S) bank 1 sensor 1 requires initially raising and supporting the vehicle. Before proceeding start by removing the front propeller shaft from the front Differential in case it becomes necessary. Pull off both the connector position assurance (CPA) retainer and disconnect the ho2s electrical connector from its fuel line clip position. Matte hose vehicles that use either the 4.8l or 5.3l engine should first disconnect the ho2s electrical connector . Vehicle owners should disconnect the ho2s electrical connector during sensor replacement on those vehicles with a 6.0l engine yet this step is unnecessary for vehicles with a 4.8l or 5.3l engine. Remove the ho2s. Install anti-seize compound gm p/n 12377953 on threads when using original ho2s, although new sensors arrive with pre-applied coating. Tighten the ho2s to 42 n.m (31 lb-ft) after its installation. For 6.0l engines connect the ho2s electrical connector. Engines with 4.8l or 5.3l require connecting the ho2s electrical connector. You must connect the ho2s electrical connector at the fuel line clip and then remove the cpa retainer before possibly reinstalling the front propeller shaft to the front Differential when you lower the vehicle.
Oxygen Sensor
12583804
Q: How to replace the Heated Oxygen Sensor - Bank 1 Sensor 1 on GMC Yukon?
A: In order to replace the heated Oxygen Sensor - bank 1 sensor 1, first, lift and support the vehicle. Remove the front propeller shaft from front Differential, in the case the automobile is 4 wheel driven. Take off the connector position assurance (CPA) retainer and disengage the engine wiring harness electrical connector from the ho2s. Take the clip from the ho2s electrical connector clip from the fuel line clip, then take the ho2s. When installing old sensor, one should coat its thread with anti-seize compound gm p/n 12377953 or equivalent. Replace the ho2s and tighten according to the value of 42 nm (31 lb ft). The engine wiring harness electrical connector should be connected to ho2s and the engine wiring harness electrical connector clip should be fixed to the fuel line clip. Finally, install the cpa retainer and reinstall the front propeller shaft to the front Differential if the vehicle had 4wd, after that, lift the vehicle.