How to replace the heated oxygen sensor (HO2S) at Position 1 on 2005 Buick LaCrosse?

The replacement process for heated Oxygen Sensor (HO2S) at position 1 begins with disconnecting the Oxygen Sensor electrical connector then removing the ho2s while being mindful not to damage Exhaust Manifold/pipe threads due to avoid applying force beyond necessity. Maintain engine temperature above 48°c (120°F) because it makes removing the items easier. According to procedure, threads of new service sensors already have anti-seize compounds applied but used sensors must receive the application of anti-seize compound p/n 5613695 or any equivalent product. Fasten the ho2s with 1 to 42 n.m torque (31 lb ft) then connect the Oxygen Sensor electrical connector. The procedure demands careful handling of ho2s and o2s while maintaining their electrical connector and louvered end free from dirt and contamination. Also avoid all cleaning solvents as well as dropping sensors.

OEM 2005 Buick LaCrosse Oxygen Sensor

Oxygen O2 Sensor

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5 Oxygen Sensors found

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2005 Buick LaCrosse 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 2005 Buick LaCrosse Submodels:
- CX, CXL | 6 Cyl 3.8 L GAS
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2005 Buick LaCrosse Oxygen Sensor Part Number: 19209814
$59.22 MSRP: $120.28
You Save: $61.06 (51%)
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Product Specifications
- Other Name: Sensor Assembly, Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Replaces: 12574218
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.2 x 3.2 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19209814
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Buick LaCrosse Submodels:
- CX, CXL | 6 Cyl 3.8 L GAS
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2005 Buick LaCrosse 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
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.5 x 3.3 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12576131
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2005 Buick LaCrosse Submodels:
- CX, CXL | 6 Cyl 3.8 L GAS
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2005 Buick LaCrosse Oxygen Sensor Part Number: 12587096
$93.48 MSRP: $189.85
You Save: $96.37 (51%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Wideband Air/Fuel Sensor; Air / Fuel Ratio Sensor; Air/Fuel Sensor; Front Oxygen Sensor; Sensor, Computer Control Sensors
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.3 x 3.1 x 3.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12587096
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Buick LaCrosse Submodels:
- CXS | 6 Cyl 3.6 L GAS
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2005 Buick LaCrosse Oxygen Sensor Part Number: 12584050
$49.06 MSRP: $88.81
You Save: $39.75 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Rear Oxygen Sensor; Front Oxygen Sensor; Sensor, Computer Control Sensors
- Replaces: 12603139
- Item Weight: 0.50 Pounds
- Item Dimensions: 7.4 x 2.0 x 2.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12584050
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Buick LaCrosse Submodels:
- CXS | 6 Cyl 3.6 L GAS

2005 Buick LaCrosse Oxygen Sensor

With a comprehensive array of OEM 2005 Buick LaCrosse Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2005 Buick LaCrosse 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.

2005 Buick LaCrosse Oxygen Sensor Parts and Q&A

Q: How to replace the heated oxygen sensor (HO2S) at Position 1 on 2005 Buick LaCrosse?
A: The replacement process for heated Oxygen Sensor (HO2S) at position 1 begins with disconnecting the Oxygen Sensor electrical connector then removing the ho2s while being mindful not to damage Exhaust Manifold/pipe threads due to avoid applying force beyond necessity. Maintain engine temperature above 48°c (120°F) because it makes removing the items easier. According to procedure, threads of new service sensors already have anti-seize compounds applied but used sensors must receive the application of anti-seize compound p/n 5613695 or any equivalent product. Fasten the ho2s with 1 to 42 n.m torque (31 lb ft) then connect the Oxygen Sensor electrical connector. The procedure demands careful handling of ho2s and o2s while maintaining their electrical connector and louvered end free from dirt and contamination. Also avoid all cleaning solvents as well as dropping sensors.