How to replace the Heated Oxygen Sensor (Bank 1 Sensor 1) on the LC3 engine on 2006 Cadillac STS?

The heated Oxygen Sensor (Bank 1 Sensor 1) on the lc3 engine located on the right side during driver seat operation needs replacement by first removing the engine sight shield followed by the front air inlet housing panel. Start by disconnecting the Oxygen Sensor electrical connector from the engine wiring harness at the rear of the right head and then remove the wire harness from its bracket ensuring record of wire routing and attachment points for future reinstallation. After raising and supporting the vehicle you can pull out the Oxygen Sensor from its position at the Exhaust Manifold. Follow installation steps by coating the new sensor with anti-seize compound p/n 5613695 when it will be reused and apply torque at 42 n.m (31 lb ft) toward the heated Oxygen Sensor (HO2S) installation. Post-installation requires lowering the vehicle while following the previous wiring path for reconnecting the Oxygen Sensor electrical connector followed by wire harness bracket attachment then front air inlet housing panel and engine sight shield reinstallation.

OEM 2006 Cadillac STS Oxygen Sensor

Oxygen O2 Sensor

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6 Oxygen Sensors found

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2006 Cadillac STS Oxygen Sensor
Part Number: 12575657
$146.75 MSRP: $298.07
You Save: $151.32 (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
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.4 x 3.4 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12575657
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2006 Cadillac STS Submodels:
- Base | 6 Cyl 3.6 L GAS, 8 Cyl 4.6 L GAS
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2006 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 2006 Cadillac STS Submodels:
- Base | 6 Cyl 3.6 L GAS, 8 Cyl 4.6 L GAS
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2006 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.
More Info
Fits the following 2006 Cadillac STS Submodels:
- Base | 6 Cyl 3.6 L GAS, 8 Cyl 4.6 L GAS
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2006 Cadillac STS Oxygen Sensor, Driver Side
Part Number: 12597912
$174.78 MSRP: $328.22
You Save: $153.44 (47%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Wideband Air/Fuel Sensor; Air / Fuel Ratio Sensor; Air/Fuel Sensor
- Position: Driver Side
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.1 x 3.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12597912
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Cadillac STS Submodels:
- Base | 8 Cyl 4.6 L GAS
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2006 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 2006 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS
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2006 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 2006 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS

2006 Cadillac STS Oxygen Sensor

With a comprehensive array of OEM 2006 Cadillac STS Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2006 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.

2006 Cadillac STS Parts Questions & Experts Answers

Q: How to replace the Heated Oxygen Sensor (Bank 1 Sensor 1) on the LC3 engine on 2006 Cadillac STS?
A: The heated Oxygen Sensor (Bank 1 Sensor 1) on the lc3 engine located on the right side during driver seat operation needs replacement by first removing the engine sight shield followed by the front air inlet housing panel. Start by disconnecting the Oxygen Sensor electrical connector from the engine wiring harness at the rear of the right head and then remove the wire harness from its bracket ensuring record of wire routing and attachment points for future reinstallation. After raising and supporting the vehicle you can pull out the Oxygen Sensor from its position at the Exhaust Manifold. Follow installation steps by coating the new sensor with anti-seize compound p/n 5613695 when it will be reused and apply torque at 42 n.m (31 lb ft) toward the heated Oxygen Sensor (HO2S) installation. Post-installation requires lowering the vehicle while following the previous wiring path for reconnecting the Oxygen Sensor electrical connector followed by wire harness bracket attachment then front air inlet housing panel and engine sight shield reinstallation.