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

The beginning step for the heated Oxygen Sensor ho2s bank 1 sensor 1 replacement requires the upper Intake Manifold removal. First disconnect the engine wiring harness electrical connector from the ho2s electrical connector while removing the ho2s electrical connector retainer from the engine wiring harness clip. The Exhaust Manifold must be carefully inspected when removing the ho2s so both the pigtail and connectors remain undamaged to preserve sensor functionality. New sensors arrive with factory coating yet old sensors require gm p/n 12377953 anti-seize compound application to their threads prior to reuse. Tighten the ho2s against the Exhaust Manifold to 42 n.m (31 lb ft). Safely marry the engine wiring harness electrical connector to the ho2s electrical connector and then fit the ho2s electrical connector retainer into the engine wiring harness clip. The last step involves upper Intake Manifold replacement after verifying proper connection quality to avoid performance problems.

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.

OEM GMC Oxygen Sensor

Oxygen O2 Sensor

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89 Oxygen Sensors found

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GMC Oxygen Sensor Part Number: 12563848
$42.03 MSRP: $85.38
You Save: $43.35 (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
$66.41 MSRP: $134.88
You Save: $68.47 (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
$51.58 MSRP: $104.78
You Save: $53.20 (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
$69.02 MSRP: $140.18
You Save: $71.16 (51%)
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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
$63.75 MSRP: $129.48
You Save: $65.73 (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
$45.73 MSRP: $92.87
You Save: $47.14 (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
$22.11 MSRP: $41.52
You Save: $19.41 (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
$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
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
$84.49 MSRP: $171.60
You Save: $87.11 (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
$63.56 MSRP: $129.10
You Save: $65.54 (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
$41.06 MSRP: $83.40
You Save: $42.34 (51%)
Ships in 1-2 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
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
$52.99 MSRP: $94.39
You Save: $41.40 (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
$43.86 MSRP: $89.10
You Save: $45.24 (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
$58.38 MSRP: $118.58
You Save: $60.20 (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
$39.29 MSRP: $110.63
You Save: $71.34 (65%)
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
$47.00 MSRP: $85.06
You Save: $38.06 (45%)
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
$63.01 MSRP: $127.99
You Save: $64.98 (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
$80.91 MSRP: $164.32
You Save: $83.41 (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
$86.80 MSRP: $163.00
You Save: $76.20 (47%)
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
$55.86 MSRP: $113.46
You Save: $57.60 (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

Choose OEM Oxygen Sensor, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with GMC's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM GMC Oxygen Sensor. You can shop at highly competitive prices and protect your budget. All our genuine GMC parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

GMC Oxygen Sensor maintains the honesty of the fuel mix of the engine to generate more power and produce clean exhaust. GMC also designs cars that include trucks and SUVs that shake off the pounds, tough roads, and extended trips. Honey-thick hydraulically formed frames and high-torque beefy powertrains move without drama. Cabins remain silent courtesy of active sound absorbers; therefore, discussion is defeated by tire bumps. Drivers have faith in GMC since it affixes advanced technology such as surround vision and hitch guidance to uncivilized muscle. MultiPro tailgate folds, gets the cargo strapped and locked in less than a minute, making the weekend tasks not as painful. Long-lasting finishes combat salt, narrow panel cracks prevent dust, and all the driveshaft absorbs thousands of test miles of service until sold, keeping the reliability statistics high. The suspension tuning is a tradeoff between load hauling and smooth cruising that allows families to carry their gear and still have a relaxing ride on crack asphalt. Heavy paint is the secret of maintaining shine. The upstream Oxygen Sensor samples exhaust immediately after it exits the manifolds, generates a voltage that varies to either rich or lean in a matter of milliseconds, and provides the engine computer with the information it requires to give it the trim it needs on the fly. An Oxygen Sensor is mounted downstream of the catalytic converter and monitors the gases and compares to the upstream unit to make sure that the cat continues to do its job effectively. In the event when contamination dulls either sensor, the voltage swings become flat and the computer enriches the mix; the fuel economy decreases along with the emission scores. Replacing with a new unit is a way of regaining proper feedback, as well as maintaining high torque without gulping gas.

GMC Oxygen Sensor Parts and Q&A

Oxygen Sensor
12594452
Q: How to replace the Heated Oxygen Sensor (HO2S) for Bank 1 Sensor 1 on GMC Acadia?
A:
The beginning step for the heated Oxygen Sensor ho2s bank 1 sensor 1 replacement requires the upper Intake Manifold removal. First disconnect the engine wiring harness electrical connector from the ho2s electrical connector while removing the ho2s electrical connector retainer from the engine wiring harness clip. The Exhaust Manifold must be carefully inspected when removing the ho2s so both the pigtail and connectors remain undamaged to preserve sensor functionality. New sensors arrive with factory coating yet old sensors require gm p/n 12377953 anti-seize compound application to their threads prior to reuse. Tighten the ho2s against the Exhaust Manifold to 42 n.m (31 lb ft). Safely marry the engine wiring harness electrical connector to the ho2s electrical connector and then fit the ho2s electrical connector retainer into the engine wiring harness clip. The last step involves upper Intake Manifold replacement after verifying proper connection quality to avoid performance problems.
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.