How to Replace a Heated Oxygen Sensor (HO2S) Safely and Effectively on 2004 Buick Century?

In order to change the Heated Oxygen Sensor (HO2S), lift and hold the car. Unscrew the electrical connecting piece and loosen the sensor with the Heated Oxygen Sensor Wrench. Before re-assembling, apply anti-seize compound on the threads. Screw the sensor and re-join the electrical connector and then depress the vehicle.

OEM 2004 Buick Century Oxygen Sensor

Oxygen O2 Sensor

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

2 Oxygen Sensors found

View related parts
2004 Buick Century Oxygen Sensor Part Number: 19178747
$83.90 MSRP: $151.86
You Save: $67.96 (45%)
Ships in 1-2 Business Days
ADD TO CART
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 2004 Buick Century Submodels:
- Custom, Limited | 6 Cyl 3.1 L GAS
View related parts
2004 Buick Century 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
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.3 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12559850
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Buick Century Submodels:
- Custom, Limited, Special Edition | 6 Cyl 3.1 L GAS

2004 Buick Century Oxygen Sensor

With a comprehensive array of OEM 2004 Buick Century Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2004 Buick Century 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.

2004 Buick Century Oxygen Sensor Parts and Q&A

Q: How to Replace a Heated Oxygen Sensor (HO2S) Safely and Effectively on 2004 Buick Century?
A: In order to change the Heated Oxygen Sensor (HO2S), lift and hold the car. Unscrew the electrical connecting piece and loosen the sensor with the Heated Oxygen Sensor Wrench. Before re-assembling, apply anti-seize compound on the threads. Screw the sensor and re-join the electrical connector and then depress the vehicle.