What is the function of the oxygen sensor in the exhaust system on Chevrolet Tracker?

The oxygen sensor monitors exhaust gas oxygen levels, aiding the PCM in maintaining an optimal air/fuel ratio of 14.7:1. It sends voltage signals fluctuating between 1.0-volt and 0.1 volt when warmed up. OBD-II vehicles have two heated sensors: the upstream sensor in the exhaust manifold and the downstream sensor post-catalytic converter. The latter gauges the converter's efficiency. Issues in the oxygen sensor circuit can trigger diagnostic trouble codes. Before deeming the sensor faulty, other impacting components should be checked. To test, measure its voltage under various engine conditions. If malfunctioning, replace using an oxygen sensor wrench, applying anti-seize to the new sensor's threads and tightening to the specified torque.

OEM Chevrolet Oxygen Sensor

Oxygen O2 Sensor

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205 Oxygen Sensors found

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Chevrolet Oxygen Sensor Part Number: 12616203
$97.69 MSRP: $198.42
You Save: $100.73 (51%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Rear Oxygen Sensor; Sensor, Computer Control Sensors
Fits the following Chevrolet Models:
- Camaro | 2010-2011 | LS, LT | 6 Cyl 3.6 L GAS
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Chevrolet Oxygen Sensor Part Number: 12596701
$42.01 MSRP: $131.10
You Save: $89.09 (68%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
Fits the following Chevrolet Models:
- Malibu | 2007-2008 | Classic LS, LS, LT | 4 Cyl 2.2 L GAS
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Chevrolet Oxygen Sensor, Passenger Side Part Number: 12608663
$70.37 MSRP: $142.92
You Save: $72.55 (51%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Position: Passenger Side
Fits the following Chevrolet Models:
- Malibu | 2008-2012 | LT, LTZ | 6 Cyl 3.6 L GAS
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Chevrolet Oxygen Sensor Part Number: 12618009
$60.94 MSRP: $171.60
You Save: $110.66 (65%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
Fits the following Chevrolet Models:
- Malibu | 2010-2012 | LS, LT, LTZ | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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Chevrolet Oxygen Sensor Part Number: 12643708
$38.86 MSRP: $78.92
You Save: $40.06 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Lower Oxygen Sensor
Fits the following Chevrolet Models:
- Camaro | 2016 | SS | 8 Cyl 6.2 L GAS
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Chevrolet Oxygen Sensor Part Number: 12578576
$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
Fits the following Chevrolet Models:
- Cobalt | 2005-2010 | Base, LS, LT, LTZ, Sport, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS
- HHR | 2006-2011 | LS, LS Panel, LT, LT Panel, SS, SS Panel | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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Chevrolet Oxygen Sensor Part Number: 19178918
$80.06 MSRP: $142.96
You Save: $62.90 (44%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25163079, 25312200
Fits the following Chevrolet Models:
- Astro | 1996-1999 | Base, LS, LT | 6 Cyl 4.3 L GAS
- Blazer | 1996-2002 | Base, LS, LT, Trailblazer, Xtreme | 6 Cyl 4.3 L GAS
- C1500 | 1996-1999 | Base, Cheyenne, LS, Silverado, WT | 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 | 1996-1999 | Base, LS, LT | 8 Cyl 5.7 L GAS
- C2500 | 1996-2000 | Base, Cheyenne, LS, Silverado, WT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1996-1999 | Base, LS, LT | 8 Cyl 5.7 L GAS
- C3500 | 1996-2000 | Base, Cheyenne, LS, Silverado | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- Express 2500 | 1996-2002 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- Express 3500 | 1996-2002 | Base, LS | 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K1500 | 1996-1999 | Base, Cheyenne, LS, Silverado, WT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet 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
Fits the following Chevrolet Models:
- Corvette | 2005-2007 | Base, Z06 | 8 Cyl 6.0 L GAS, 8 Cyl 7.0 L GAS
- Equinox | 2005-2007 | LS, LT | 6 Cyl 3.4 L GAS
- Impala | 2004-2008 | 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
- Malibu | 2005-2007 | LS, LT, LTZ, Maxx LS, Maxx LT, Maxx LTZ | 6 Cyl 3.5 L GAS
- Monte Carlo | 2004-2007 | LS, LT, LTZ, 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 GAS, 8 Cyl 5.3 L GAS
- Uplander | 2005-2008 | Base, LS, LT | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
- Venture | 2005 | LS, LT, Plus | 6 Cyl 3.4 L GAS
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Chevrolet Oxygen Sensor Part Number: 19178930
$66.41 MSRP: $134.88
You Save: $68.47 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Replaces: 25312184, 25165313, 25171579
Fits the following Chevrolet Models:
- Beretta | 1994-1996 | Base | 4 Cyl 2.2 L GAS
- Blazer | 1995 | Base, LT | 6 Cyl 4.3 L GAS
- Camaro | 1994-1997 | Base, RS, Z28 | 6 Cyl 3.8 L GAS, 8 Cyl 5.7 L GAS
- Caprice | 1994-1996 | Classic, Classic LS | 8 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS
- Corsica | 1994-1996 | Base | 4 Cyl 2.2 L GAS, 6 Cyl 3.1 L GAS
- Corvette | 1995-2004 | 50th Anniversary Edition, 50th Anniversary Edition Pace Car, Base, Indianapolis 500 Pace Car, Z06 | 8 Cyl 5.7 L GAS
- Impala | 1994-1996 | SS | 8 Cyl 5.7 L GAS
- Lumina | 1995-1996 | Base, LS | 6 Cyl 3.1 L GAS, 6 Cyl 3.4 L GAS
- Lumina APV | 1994-1996 | Base, LS | 6 Cyl 3.4 L GAS
- Monte Carlo | 1995-1996 | LS, Z34 | 6 Cyl 3.1 L GAS, 6 Cyl 3.4 L GAS
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Chevrolet 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 Chevrolet Models:
- Colorado | 2004-2005 | Base, LS, Sport, Sport LS, Z71, Z71 LS, Z85, Z85 LS | 4 Cyl 2.8 L GAS, 5 Cyl 3.5 L GAS
- Trailblazer | 2004 | LS, LT, North Face | 6 Cyl 4.2 L GAS
- Trailblazer EXT | 2004 | LS, LT, North Face | 6 Cyl 4.2 L GAS
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Chevrolet 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 Chevrolet Models:
- Express 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
- Express 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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Chevrolet Oxygen Sensor Part Number: 12577588
$66.10 MSRP: $124.16
You Save: $58.06 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Replaces: 24577273
Fits the following Chevrolet Models:
- Trailblazer | 2002-2003 | LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS
- Trailblazer EXT | 2002-2003 | LS, LT, North Face | 6 Cyl 4.2 L GAS
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Chevrolet Oxygen Sensor Part Number: 12578624
$84.49 MSRP: $171.60
You Save: $87.11 (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: 24577303
Fits the following Chevrolet Models:
- Colorado | 2004-2005 | Base, LS, Sport, Sport LS, Z71, Z71 LS, Z85, Z85 LS | 4 Cyl 2.8 L GAS, 5 Cyl 3.5 L GAS
- Malibu | 2004-2008 | Base, Classic LS, LS, LT | 4 Cyl 2.2 L GAS
- Trailblazer | 2002-2005 | LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS
- Trailblazer EXT | 2002-2005 | LS, LT, North Face | 6 Cyl 4.2 L GAS
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Chevrolet Oxygen Sensor Part Number: 12597947
$84.49 MSRP: $171.60
You Save: $87.11 (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 Chevrolet Models:
- Malibu | 2008-2009 | Hybrid, LS, LT, LTZ | 4 Cyl 2.4 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.4 L GAS
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Chevrolet Oxygen Sensor, Driver Side Part Number: 19355308
$71.31 MSRP: $144.84
You Save: $73.53 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Position: Driver Side
- Replaces: 19178928, 25161131, 25312197
Fits the following Chevrolet Models:
- Camaro | 1998-2002 | Z28, Z28 SS | 8 Cyl 5.7 L GAS
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Chevrolet Oxygen Sensor Part Number: 19178936
$39.06 MSRP: $73.36
You Save: $34.30 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25320812
Fits the following Chevrolet Models:
- Cavalier | 1999-2001 | Base, LS, RS | 4 Cyl 2.2 L BI-FUEL, 4 Cyl 2.2 L GAS
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Chevrolet 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 Chevrolet Models:
- Blazer | 2019-2021 | Base, L, LT | 4 Cyl 2.5 L GAS
- Equinox | 2018-2020 | LT, Premier | 4 Cyl 2.0 L GAS
- Impala | 2014-2019 | 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
- Malibu | 2013-2022 | LS, LT, LTZ, Premier | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- Malibu Limited | 2016 | LS, LT, LTZ | 4 Cyl 2.5 L GAS
- Traverse | 2018-2019 | RS | 4 Cyl 2.0 L GAS
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Chevrolet Oxygen Sensor Part Number: 12670254
$38.43 MSRP: $72.16
You Save: $33.73 (47%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Post-Catalyst Bank 2; Lower Oxygen Sensor; Sensor, Computer Control Sensors
Fits the following Chevrolet Models:
- Corvette | 2020-2024 | E-Ray, Stingray | 8 Cyl 6.2 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.2 L GAS
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Chevrolet Oxygen Sensor Part Number: 12608693
$63.85 MSRP: $119.90
You Save: $56.05 (47%)
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
Fits the following Chevrolet Models:
- Equinox | 2008-2009 | LS, LT, LTZ | 6 Cyl 3.4 L GAS
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Chevrolet Oxygen Sensor, Passenger Side Part Number: 12589549
$69.46 MSRP: $124.05
You Save: $54.59 (45%)
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Sensor, Computer Control Sensors
- Position: Passenger Side
- Replaces: 12570794
Fits the following Chevrolet Models:
- Astro | 2003-2005 | Base, LS, LT | 6 Cyl 4.3 L GAS

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1-20 of 205 Results

Chevrolet 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 Chevrolet'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 Chevrolet Oxygen Sensor. You can shop at highly competitive prices and protect your budget. All our genuine Chevrolet parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Chevrolet Oxygen Sensor is installed to continuously monitor exhaust oxygen in order to ensure that the air fuel mix is efficient and the emissions are kept to a minimum by the engine computer. Over 100 years Chevrolet has gained the trust of its consumers with its products, which are known to become cars, trucks, and SUVs that are both practical everyday and bold. Nimble compacts to rugged pickups, the Chevrolet models are characterized by easy-to-use controls, roomy cabins, and robust engines that ensure that the long journeys and commutes to work are enjoyable. Such aspects as the automatization of emergency braking and the integration of smartphones demonstrate how the brand pays attention to drivers and is becoming more modernized. Chevy also focuses on value and provides very high warranty coverage and sensible prices, allowing families, users, and adventure seekers to climb into a car that seems to be theirs without causing the budget to stretch to its high limit. To enhance these brand strengths, the Oxygen Sensor is vital in the whole range of products, feeding real time information about the unused oxygen to the engine control unit which in turn adjusts injector pulse width to actual optimum combustion. A fine Oxygen Sensor contributes to a more readily accelerated, tailpipe cleaner, and economical fuel use in all Chevy cars, with a small turbo engine or a large V8. The constant reminder about this cheap component makes Chevrolet run at its optimal performance as well as safeguard the environment.

Chevrolet Oxygen Sensor Parts and Q&A

Oxygen Sensor
30028571
Q: What is the function of the oxygen sensor in the exhaust system on Chevrolet Tracker?
A:
The oxygen sensor monitors exhaust gas oxygen levels, aiding the PCM in maintaining an optimal air/fuel ratio of 14.7:1. It sends voltage signals fluctuating between 1.0-volt and 0.1 volt when warmed up. OBD-II vehicles have two heated sensors: the upstream sensor in the exhaust manifold and the downstream sensor post-catalytic converter. The latter gauges the converter's efficiency. Issues in the oxygen sensor circuit can trigger diagnostic trouble codes. Before deeming the sensor faulty, other impacting components should be checked. To test, measure its voltage under various engine conditions. If malfunctioning, replace using an oxygen sensor wrench, applying anti-seize to the new sensor's threads and tightening to the specified torque.