How to replace the Heated Oxygen Sensor (HO2S) on Chevrolet Impala?

A heated Oxygen Sensor (HO2S) replacement begins with obtaining these essential tools: an Oxygen Sensor wrench (J 39194). Handle the ho2s sensor with great care while keeping the permanently attached pigtail and connector protected to maintain proper sensor functionality. Oxygen Sensor wrench (J 39194). Take proper precautions when handling ho2s because damage to its pigtail or connector will lead to sensor performance decline. Start by removing the sight shield from the fuel injector then remove the ho2s electrical cpa retainer before disconnecting the ho2s wiring harness connector from the electrical connector of the ho2s. Detach the ho2s electrical connector from its position on the fuel injector sight shield bracket. Engine temps should exceed 48°c (120°F) while performing this task because operating at lower temperatures can cause damage to Exhaust Manifold or pipe threads and make the process more difficult. You should use an Oxygen Sensor wrench (J 39194) to uninstall the ho2s. When installing the sensor apply a special anti-seize compound to the threads of new or reused components when necessary using p/n 12377953 or equivalent class of compounds. Use the Oxygen Sensor wrench (J 39194) to install the rear Oxygen Sensor into the right Exhaust Manifold with 41 n.m (30 lb ft) torque setting. After connecting the ho2s electrical connector to the wiring harness connector, secure the ho2s electrical connector to the fuel injector sight shield bracket before installing the ho2s electrical cpa retainer and putting the fuel injector sight shield back in place.

OEM Chevrolet Impala Oxygen Sensor

Oxygen O2 Sensor

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14 Oxygen Sensors found

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Chevrolet Impala Oxygen Sensor Part Number: 19209814
$59.22 MSRP: $120.28
You Save: $61.06 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly, Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Replaces: 12574218
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Chevrolet Impala | Base, LS, Police, SS | 6 Cyl 3.8 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 19209807
$87.79 MSRP: $178.30
You Save: $90.51 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor
- Replaces: 12570149, 12574924, 12572772
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2008 Chevrolet Impala | 50th Anniversary Edition, Base, LS, LT, LTZ, Police, SS | 6 Cyl 3.4 L GAS, 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS, 8 Cyl 5.3 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 19178958
$65.65 MSRP: $133.34
You Save: $67.69 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor; Manifold
- Replaces: 25178022, 25312203, 25312211, 25164488
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2003 Chevrolet Impala | Base, LS, LS Sport, Police | 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
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Chevrolet Impala 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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Chevrolet Impala | SS | 8 Cyl 5.7 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 19178747
$83.90 MSRP: $151.86
You Save: $67.96 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaced by: 19355307
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Chevrolet Impala | Base, LS, LS Sport, Police, SS | 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 12643707
$44.51 MSRP: $70.58
You Save: $26.07 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor; Upper Oxygen Sensor
- Replaces: 12627139
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Impala | Eco, LS, LT, LTZ | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 12640453
$52.04 MSRP: $105.70
You Save: $53.66 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2020 Chevrolet Impala | LS, LT, LTZ, Premier | 6 Cyl 3.6 L BI-FUEL, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 12634061
$45.24 MSRP: $91.88
You Save: $46.64 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor; Upper Oxygen Sensor; Lower Oxygen Sensor
- Replaces: 12607333
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2013 Chevrolet Impala | LS, LT, LTZ, Police | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Chevrolet Impala Oxygen Sensor, Driver Side Part Number: 12608662
$61.06 MSRP: $124.02
You Save: $62.96 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2011 Chevrolet Impala | 50th Anniversary Edition, LS, LT, LTZ, Police | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX
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Chevrolet Impala Oxygen Sensor Part Number: 12580466
$68.95 MSRP: $140.05
You Save: $71.10 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Chevrolet Impala | SS | 8 Cyl 5.3 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 12559850
$59.96 MSRP: $121.78
You Save: $61.82 (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:
- 2001-2005 Chevrolet Impala | Base | 6 Cyl 3.4 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 12661898
$63.01 MSRP: $127.99
You Save: $64.98 (51%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Lower Oxygen Sensor
- Replaces: 12643903
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Impala | Eco, LS, LT, LTZ | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Chevrolet Impala Oxygen Sensor Part Number: 12615124
$96.41 MSRP: $195.82
You Save: $99.41 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Chevrolet Impala | SS | 8 Cyl 5.3 L GAS
View related parts
Chevrolet Impala Oxygen Sensor Part Number: 12584925
$81.31 MSRP: $165.13
You Save: $83.82 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Chevrolet Impala | 50th Anniversary Edition, LS, LT, LTZ, Police | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS

Chevrolet Impala Oxygen Sensor

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The Oxygen Sensor in Chevrolet Impala vehicles helps in regulating the air-fuel mixture with a view of decreasing on emission and increase in the engine performance level. Due to it being able to get samples of the oxygen level within the exhaust gases that the engine is putting out, the sensor gets to feed real time information to the engine control module/ECM. One of the high-tech components is used to sustain these factors to keep the combustion process efficient and emissions in check. Chevrolet Impala Oxygen Sensors are mainly of the heated category to facilitate a faster response for proper functioning. The technologies used in these sensors are include zirconia and electrochemical methods among others from previous years. Oxygen Sensor can cause high emission, high fuel consumption and unstable engine performance if there is a failure. This component should regularly be maintained and checked to guarantee the proper running of the vehicle.

Chevrolet Impala Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor
19178747
Q: How to replace the Heated Oxygen Sensor (HO2S) on Chevrolet Impala?
A:
A heated Oxygen Sensor (HO2S) replacement begins with obtaining these essential tools: an Oxygen Sensor wrench (J 39194). Handle the ho2s sensor with great care while keeping the permanently attached pigtail and connector protected to maintain proper sensor functionality. Oxygen Sensor wrench (J 39194). Take proper precautions when handling ho2s because damage to its pigtail or connector will lead to sensor performance decline. Start by removing the sight shield from the fuel injector then remove the ho2s electrical cpa retainer before disconnecting the ho2s wiring harness connector from the electrical connector of the ho2s. Detach the ho2s electrical connector from its position on the fuel injector sight shield bracket. Engine temps should exceed 48°c (120°F) while performing this task because operating at lower temperatures can cause damage to Exhaust Manifold or pipe threads and make the process more difficult. You should use an Oxygen Sensor wrench (J 39194) to uninstall the ho2s. When installing the sensor apply a special anti-seize compound to the threads of new or reused components when necessary using p/n 12377953 or equivalent class of compounds. Use the Oxygen Sensor wrench (J 39194) to install the rear Oxygen Sensor into the right Exhaust Manifold with 41 n.m (30 lb ft) torque setting. After connecting the ho2s electrical connector to the wiring harness connector, secure the ho2s electrical connector to the fuel injector sight shield bracket before installing the ho2s electrical cpa retainer and putting the fuel injector sight shield back in place.