How to Replace a Heated Oxygen Sensor (HO2S) with an Oxygen Sensor Wrench on 2003 Buick Regal?

In order to change the Heated Oxygen Sensor (HO2S), one just needs to obtain the tools and work with the sensor attentively, ensuring that the connectors are not contaminated. Take out the fuel injector sight shield, and unplug HO2S wiring harness. Carefully take off the HO2S on the exhaust manifold, work in anti-seize compound and put back the components.

OEM 2003 Buick Regal Oxygen Sensor

Oxygen O2 Sensor

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3 Oxygen Sensors found

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2003 Buick Regal Oxygen Sensor Part Number: 19209807
$87.79 MSRP: $178.30
You Save: $90.51 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor
- Replaces: 12570149, 12574924, 12572772
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.4 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19209807
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 Buick Regal Submodels:
- GS, LS | 6 Cyl 3.8 L GAS
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2003 Buick Regal Oxygen Sensor Part Number: 19178747
$83.90 MSRP: $151.86
You Save: $67.96 (45%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaced by: 19355307
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.1 x 2.1 x 2.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19178747
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Buick Regal Submodels:
- GS, GSE, LS, LSE | 6 Cyl 3.8 L GAS
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2003 Buick Regal Oxygen Sensor Part Number: 19178958
$61.65 MSRP: $125.22
You Save: $63.57 (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
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.0 x 2.1 x 2.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19178958
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Buick Regal Submodels:
- 25th Anniversary Edition, GS, GSE, LS, LSE | 6 Cyl 3.8 L GAS

2003 Buick Regal Oxygen Sensor

With a comprehensive array of OEM 2003 Buick Regal Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2003 Buick Regal Oxygen Sensor are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2003 Buick Regal Oxygen Sensor Parts and Q&A

Q: How to Replace a Heated Oxygen Sensor (HO2S) with an Oxygen Sensor Wrench on 2003 Buick Regal?
A: In order to change the Heated Oxygen Sensor (HO2S), one just needs to obtain the tools and work with the sensor attentively, ensuring that the connectors are not contaminated. Take out the fuel injector sight shield, and unplug HO2S wiring harness. Carefully take off the HO2S on the exhaust manifold, work in anti-seize compound and put back the components.