How to replace the Heated Oxygen Sensor (HO2S) for Bank 2 Sensor 1 on 2007 Cadillac STS?

You should begin the Heated Oxygen Sensor (HO2S) for Bank 2 Sensor 1 replacement process by first turning off the ignition and removing the fuel injector sight shield when needed. To start remove the HO2S it requires disconnecting its electrical connector while also removing it from the wiring harness bracket. Then raise and stabilize the vehicle. The procedure of removing an oxygen sensor becomes easier when the engine maintains a temperature exceeding 48°C (120°F). Next, remove the HO2S. Always check that the new HO2S features an anti-seize compound already applied to its sensor threads; apply GM P/N 5613695 anti-seize compound or equivalent to the sensor threads when using the original sensor. The new HO2S requires installation according to a torque of 40 N.m (30 lb ft). After a fresh install of the HO2S electrical connector on the wiring harness bracket, reconnect the HO2S electrical connector. Next, reduce the vehicle height, then restore the fuel injector sight shield if required.

OEM 2007 Cadillac STS Oxygen Sensor

Oxygen O2 Sensor

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7 Oxygen Sensors found

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2007 Cadillac STS 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
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.3 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12590035
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2007 Cadillac STS Submodels:
- Base | 6 Cyl 3.6 L GAS, 8 Cyl 4.6 L GAS
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2007 Cadillac STS Oxygen Sensor
Part Number: 12596327
$132.76 MSRP: $269.65
You Save: $136.89 (51%)
Ships in 1-2 Business Days
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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
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.4 x 3.4 x 3.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12596327
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base | 6 Cyl 3.6 L GAS, 8 Cyl 4.6 L GAS
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2007 Cadillac STS Oxygen Sensor
Part Number: 12597449
$85.39 MSRP: $173.44
You Save: $88.05 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.3 x 3.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12597449
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 6 Cyl 3.6 L GAS
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2007 Cadillac STS Oxygen Sensor
Part Number: 12610969
$93.70 MSRP: $175.98
You Save: $82.28 (47%)
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
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.5 x 3.1 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12610969
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 8 Cyl 4.6 L GAS
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2007 Cadillac STS Oxygen Sensor
Part Number: 12588036
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.2 x 3.0 x 3.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12588036
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS
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2007 Cadillac STS Oxygen Sensor
Part Number: 12607145
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.5 x 3.0 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12607145
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 8 Cyl 4.6 L GAS
View related parts
2007 Cadillac STS Oxygen Sensor
Part Number: 12609159
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Rear Oxygen Sensor; Sensor, Computer Control Sensors
- Replaces: 12598300
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.2 x 3.2 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12609159
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS

2007 Cadillac STS Oxygen Sensor

With a comprehensive array of OEM 2007 Cadillac STS Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2007 Cadillac STS 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.

2007 Cadillac STS Parts Questions & Experts Answers

Q: How to replace the Heated Oxygen Sensor (HO2S) for Bank 2 Sensor 1 on 2007 Cadillac STS?
A: You should begin the Heated Oxygen Sensor (HO2S) for Bank 2 Sensor 1 replacement process by first turning off the ignition and removing the fuel injector sight shield when needed. To start remove the HO2S it requires disconnecting its electrical connector while also removing it from the wiring harness bracket. Then raise and stabilize the vehicle. The procedure of removing an oxygen sensor becomes easier when the engine maintains a temperature exceeding 48°C (120°F). Next, remove the HO2S. Always check that the new HO2S features an anti-seize compound already applied to its sensor threads; apply GM P/N 5613695 anti-seize compound or equivalent to the sensor threads when using the original sensor. The new HO2S requires installation according to a torque of 40 N.m (30 lb ft). After a fresh install of the HO2S electrical connector on the wiring harness bracket, reconnect the HO2S electrical connector. Next, reduce the vehicle height, then restore the fuel injector sight shield if required.

Related 2007 Cadillac STS Parts

Alternate Year Models

2006 Cadillac STS Oxygen Sensor 2008 Cadillac STS Oxygen Sensor