How to replace the Heated Oxygen Sensor (HO2S) for Bank 1 Sensor 1 on Cadillac CTS?

Before installing the heated Oxygen Sensor (HO2S) for bank 1 sensor 1 turn off the ignition and detach the ho2s electrical connection before taking out the sensor from its harness bracket. The replacement process becomes simpler if the engine temperature reaches 48°c (120°F). After removing the Catalytic Converter from the system move on to the ho2s extraction. New oxygen sensors require special anti-seize compound on their threads before installation. The original sensor requires gm p/n 5613695 anti-seize compound or a similar product for application. Put the ho2s into position on the Catalytic Converter before applying 40 n.m (30 lb ft) of torque. The vehicle needs to be lowered as you need to connect the ho2s electrical connector to the wiring harness bracket. Once that is done reconnect the ho2s electrical connector.

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Oxygen O2 Sensor

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33 Oxygen Sensors found

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Cadillac CTS Oxygen Sensor Part Number: 12615194
$96.41 MSRP: $195.82
You Save: $99.41 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2015 Cadillac CTS | V | 8 Cyl 6.2 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12607410
$42.90 MSRP: $87.14
You Save: $44.24 (51%)
Ships in 1-2 Business Days
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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:
- 2009-2015 Cadillac CTS | V | 8 Cyl 6.2 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 24402860
$74.85 MSRP: $152.02
You Save: $77.17 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | Base, Luxury, Luxury Sport | 6 Cyl 3.2 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12616203
$97.69 MSRP: $198.42
You Save: $100.73 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2012 Cadillac CTS | Base, Luxury, Performance, Premium, V | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12666671
$37.57 MSRP: $76.30
You Save: $38.73 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Lower Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2017 Cadillac CTS | Luxury, Performance, Premium, Premium Luxury | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12590035
$82.97 MSRP: $154.82
You Save: $71.85 (47%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Cadillac CTS | Base, V | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS, 8 Cyl 5.7 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12575657
$149.69 MSRP: $304.03
You Save: $154.34 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Wideband Air/Fuel Sensor; Air / Fuel Ratio Sensor; Air/Fuel Sensor; Front Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Cadillac CTS | Base, V | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS, 8 Cyl 5.7 L GAS
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Cadillac CTS Oxygen Sensor, Driver Side Part Number: 12601266
$36.31 MSRP: $73.74
You Save: $37.43 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Cadillac CTS | Base, V | 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12634062
$77.42 MSRP: $157.26
You Save: $79.84 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor; Upper Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2019 Cadillac CTS | Base, Luxury, Performance, Premium, Vsport, Vsport Premium, Vsport Premium Luxury | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12671087
$35.91 MSRP: $72.94
You Save: $37.03 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Lower Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Cadillac CTS | Luxury, Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12675980
$35.70 MSRP: $100.52
You Save: $64.82 (65%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Front Oxygen Sensor; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | Base, Luxury, Performance, Premium | 4 Cyl 2.0 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12671088
$39.93 MSRP: $72.28
You Save: $32.35 (45%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Post-Catalyst Bank 2; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Cadillac CTS | Base, Luxury, Premium Luxury, V, Vsport, Vsport Premium Luxury | 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 89017722
$82.85 MSRP: $168.29
You Save: $85.44 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Kit, Oxygen; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Cadillac CTS | Base | 6 Cyl 3.6 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 12666672
$37.83 MSRP: $76.84
You Save: $39.01 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2017 Cadillac CTS | Luxury, Performance, Premium, Premium Luxury | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
View related parts
Cadillac CTS Oxygen Sensor Part Number: 12665162
$38.01 MSRP: $71.38
You Save: $33.37 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Lower Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | V | 8 Cyl 6.2 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 24402859
$28.99 MSRP: $54.44
You Save: $25.45 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | Base, Luxury, Luxury Sport | 6 Cyl 3.2 L GAS
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Cadillac CTS Oxygen Sensor Part Number: 19209815
$97.78 MSRP: $182.46
You Save: $84.68 (47%)
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Replaces: 12590847
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Cadillac CTS | Base, V | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS, 8 Cyl 6.0 L GAS
View related parts
Cadillac CTS Oxygen Sensor Part Number: 12587533
Product Specifications
- Other Name: Sensor
- Replaces: 12575658
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Cadillac CTS | Base | 6 Cyl 3.6 L GAS
View related parts
Cadillac CTS Oxygen Sensor Part Number: 12573005
Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Cadillac CTS | V | 8 Cyl 5.7 L GAS
View related parts
Cadillac CTS Oxygen Sensor Part Number: 19237464
Product Specifications
- Other Name: Sensor Assembly, Heated Oxygen (Position 1)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Cadillac CTS | Base | 6 Cyl 3.6 L GAS

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1-20 of 33 Results

Cadillac CTS Oxygen Sensor

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The Oxygen Sensor in Cadillac CTS vehicles play an important function of determining the amount of unburned Oxygen in the exhaust which is vital in controlling the air fuel mixture as well as emission levels. It uses an output of voltage signal which is proportional to the oxygen concentration and relay the information to the engine control computer to control the fuel injector timing. Most Cadillac CTS cars have both the upstream and downstream oxygen sensors with the upstream sensor primarily used to give feedback for proper functioning of the car's engine. Cadillac CTS vehicles of past years come equipped with such oxygen sensors as standard zirconium dioxide oxygen sensors as well as innovative air/fuel ratio sensors. In contrast with the traditional feedback devices that produce voltage signal when the mixture is rich or lean, air/fuel ratio sensors provide a wider operating range and use current signals. In any case, a bad oxygen sensor is likely to up emission rates and lower fuel efficiency which is why it is vital to maintain these parts in order to achieve the optimal performance from the vehicle.

Cadillac CTS Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor
12596327
Q: How to replace the Heated Oxygen Sensor (HO2S) for Bank 1 Sensor 1 on Cadillac CTS?
A:
Before installing the heated Oxygen Sensor (HO2S) for bank 1 sensor 1 turn off the ignition and detach the ho2s electrical connection before taking out the sensor from its harness bracket. The replacement process becomes simpler if the engine temperature reaches 48°c (120°F). After removing the Catalytic Converter from the system move on to the ho2s extraction. New oxygen sensors require special anti-seize compound on their threads before installation. The original sensor requires gm p/n 5613695 anti-seize compound or a similar product for application. Put the ho2s into position on the Catalytic Converter before applying 40 n.m (30 lb ft) of torque. The vehicle needs to be lowered as you need to connect the ho2s electrical connector to the wiring harness bracket. Once that is done reconnect the ho2s electrical connector.