How to service the oxygen sensor located pre-catalytic converter on 2003 Chevrolet Cavalier?

In order to service the oxygen sensor pre-catalytic converter, de-mount the exhaust manifold heat shield and unconnect the harness connector. Gently take the sensor out ensuring not to break the pigtail and threads. Wipe the connector and use solvents. Before fitting, apply anti-seize compound to the threads and later reattach the harness, and the heat shield.

OEM 2003 Chevrolet Cavalier Oxygen Sensor

Oxygen O2 Sensor

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2 Oxygen Sensors found

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2003 Chevrolet Cavalier Oxygen Sensor Part Number: 19353136
$87.86 MSRP: $165.01
You Save: $77.15 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 12588274, 12578574, 12568223
- Item Weight: 0.70 Pounds
- Item Dimensions: 8.4 x 3.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19353136
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 Chevrolet Cavalier Submodels:
- Base, LS, LS Sport | 4 Cyl 2.2 L BI-FUEL, 4 Cyl 2.2 L GAS
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2003 Chevrolet Cavalier Oxygen Sensor Part Number: 12568234
$55.45 MSRP: $112.62
You Save: $57.17 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Replaces: 12569496
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.2 x 3.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12568234
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Chevrolet Cavalier Submodels:
- Base, LS, LS Sport | 4 Cyl 2.2 L BI-FUEL, 4 Cyl 2.2 L GAS

2003 Chevrolet Cavalier Oxygen Sensor

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2003 Chevrolet Cavalier Oxygen Sensor Parts and Q&A

Q: How to service the oxygen sensor located pre-catalytic converter on 2003 Chevrolet Cavalier?
A: In order to service the oxygen sensor pre-catalytic converter, de-mount the exhaust manifold heat shield and unconnect the harness connector. Gently take the sensor out ensuring not to break the pigtail and threads. Wipe the connector and use solvents. Before fitting, apply anti-seize compound to the threads and later reattach the harness, and the heat shield.