How to service the Bank 1 Sensor 1 oxygen sensor on Cadillac DeVille?

You need an engine temperature of at least 48°c (120°F) to remove bank 1 sensor 1 successfully. Species-made anti-seize compound gets applied to all Oxygen Sensor threads before installation. The new and reused service sensors require different thread treatment with the new ones arriving with standard coating yet the reused sensors need application of anti-seize compound p/n 5613695 or an equivalent product. Start the procedure by removing the rear Oxygen Sensor electrical connector before extracting the rear Oxygen Sensor from the rear Exhaust Manifold. The rear Oxygen Sensor should be installed into the rear Exhaust Manifold followed by a 41 n.m (30 lb ft) torque setting. Finish the installation by reconnecting the rear Oxygen Sensor connector and returning the vehicle to its normal position.

How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 on Cadillac DeVille?

To replace the heated Oxygen Sensor (HO2S) bank 2 sensor 1, first of all, verify the engine temperature to above 48°C (120°F) to aid in removal. Apply anti-seize compound p/n5613695 or equivalent on thread of the reused sensor since new service sensors should already have this applied. Start by lifting the vehicle and installing car stands, and then take off the air deflector. Unplug front o2s electrical connector and remove front o2s from front Exhaust Manifold. For the installation, fit the front o2s into the front Exhaust Manifold and tighten it to 41 n.m (28 lb ft). Connect the front o2s electrical connector, re-install the air deflector, lower the car, and do a code clear.

OEM Cadillac DeVille Oxygen Sensor

Oxygen O2 Sensor

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10 Oxygen Sensors found

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Cadillac DeVille Oxygen Sensor Part Number: 19211435
$52.82 MSRP: $164.76
You Save: $111.94 (68%)
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Product Specifications
- Other Name: Sensor Assembly, Oxygen; Sensor, Computer Control Sensors
- Replaces: 05613719, 25165116, 19178940, 19178746, 25106169, 5613719, 25165119
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1995 Cadillac DeVille | Base, Cabriolet, Concours, Spring Edition, Touring, d'Elegance | 8 Cyl 4.1 L GAS, 8 Cyl 4.5 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 4.9 L GAS
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Cadillac DeVille Oxygen Sensor Part Number: 19178958
$61.65 MSRP: $125.22
You Save: $63.57 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor; Manifold
- Replaces: 25178022, 25312203, 25312211, 25164488
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Cadillac DeVille | Base, Concours, d'Elegance | 8 Cyl 4.6 L GAS
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Cadillac DeVille Oxygen Sensor Part Number: 12569429
$54.71 MSRP: $111.12
You Save: $56.41 (51%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Cadillac DeVille | Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
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Cadillac DeVille Oxygen Sensor Part Number: 12559850
$59.96 MSRP: $121.78
You Save: $61.82 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2004 Cadillac DeVille | Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
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Cadillac DeVille Oxygen Sensor Part Number: 5613719
$52.82 MSRP: $164.76
You Save: $111.94 (68%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly, Oxygen; Sensor
- Replaced by: 19211435
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1987 Cadillac DeVille | Base, Cabriolet, d'Elegance, Touring | 8 Cyl 4.1 L GAS
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Cadillac DeVille Oxygen Sensor, Driver Side Part Number: 19355308
$71.31 MSRP: $144.84
You Save: $73.53 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Position: Driver Side
- Replaces: 19178928, 25161131, 25312197
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Cadillac DeVille | Base, Concours, d'Elegance | 8 Cyl 4.6 L GAS
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Cadillac DeVille Oxygen Sensor Part Number: 19178939
$50.91 MSRP: $143.32
You Save: $92.41 (65%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25132086, 25165311, 25312178
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Cadillac DeVille | Base | 8 Cyl 4.9 L GAS
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Cadillac DeVille Oxygen Sensor Part Number: 12567497
$68.94 MSRP: $123.09
You Save: $54.15 (44%)
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Cadillac DeVille | Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
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Cadillac DeVille Oxygen Sensor Part Number: 19178945
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25315373
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999, 1996-1997 Cadillac DeVille | Base, Concours, d'Elegance | 8 Cyl 4.6 L GAS
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Cadillac DeVille Oxygen Sensor Part Number: 12559849
$58.70 MSRP: $104.83
You Save: $46.13 (44%)
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2003 Cadillac DeVille | Base, DHS, DTS | 8 Cyl 4.6 L GAS

Cadillac DeVille Oxygen Sensor

Want to cut long-term maintenance and repair costs? Choose OEM Oxygen Sensor. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Cadillac DeVille parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Cadillac DeVille Oxygen Sensor includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

Cadillac DeVille vehicles Oxygen Sensor monitors the air/fuel mixture in the engine exhaust to enhance the engine's performance besides restricting emissions. Despite the unit's high cost, the sensor features a zirconium dioxide sensing element with a platinum coating that converts the mixture's condition into a voltage signal, indicating richness or leanness. This feedback enables the engine control system work in the closed- loop manner and fine tune the air-fuel mixture to ensure the catalytic converter is functioning at its premier. Cadillac DeVille vehicles, as with many other automobiles, usually possess two oxygen sensors with the upstream sensor as the primary feedback supplier to the controller while the downstream is positioned after the catalytic converter. Contamination of the sensor may eventually occur and this will result in high emission together with low fuel economy. Some newer vehicles use what is described as an air fuel ratio sensor in place of the more conventional oxygen sensor; this new kind of sensor has a broader range of input and measures the air/fuel ratio more effectively.

Cadillac DeVille Oxygen Sensor Parts and Q&A

Oxygen Sensor
12559850
Q: How to service the Bank 1 Sensor 1 oxygen sensor on Cadillac DeVille?
A:
You need an engine temperature of at least 48°c (120°F) to remove bank 1 sensor 1 successfully. Species-made anti-seize compound gets applied to all Oxygen Sensor threads before installation. The new and reused service sensors require different thread treatment with the new ones arriving with standard coating yet the reused sensors need application of anti-seize compound p/n 5613695 or an equivalent product. Start the procedure by removing the rear Oxygen Sensor electrical connector before extracting the rear Oxygen Sensor from the rear Exhaust Manifold. The rear Oxygen Sensor should be installed into the rear Exhaust Manifold followed by a 41 n.m (30 lb ft) torque setting. Finish the installation by reconnecting the rear Oxygen Sensor connector and returning the vehicle to its normal position.
Oxygen Sensor
12569429
Q: How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 on Cadillac DeVille?
A:
To replace the heated Oxygen Sensor (HO2S) bank 2 sensor 1, first of all, verify the engine temperature to above 48°C (120°F) to aid in removal. Apply anti-seize compound p/n5613695 or equivalent on thread of the reused sensor since new service sensors should already have this applied. Start by lifting the vehicle and installing car stands, and then take off the air deflector. Unplug front o2s electrical connector and remove front o2s from front Exhaust Manifold. For the installation, fit the front o2s into the front Exhaust Manifold and tighten it to 41 n.m (28 lb ft). Connect the front o2s electrical connector, re-install the air deflector, lower the car, and do a code clear.