How to replace the right side catalytic converter on Cadillac STS?

Starting the right side Catalytic Converter replacement requires removal of the right bank exhaust manifold heat shield. Begin by taking out the nuts from the Catalytic Converter before raising the vehicle for support. The front driveshaft needs removal when your vehicle has awd. You should first disconnect both the left side and right side Catalytic Converter's Oxygen Sensor electrical connector and muffler pipe connections. Start by removing Exhaust Pipe fasteners from the right bank Catalytic Converter and then proceed with carefully removing the combination of the converter and the seal/heat shield and Oxygen Sensor from the exhaust manifold. Take out the Oxygen Sensor that exists within the Catalytic Converter. During installation connect the sensor to the Catalytic Converter and check the seal/heat shield sealing point on the converter for wear and make replacements if needed. Position the Catalytic Converter carefully onto the exhaust manifold while secure fasteners to hold it in place. After that, install the Catalytic Converter seal/heat shield to the converter. Reconnect the Oxygen Sensor wiring while conducting a seal inspection on the Catalytic Converter. Replace the seal if found damaged during the check. Secure the muffler pipes to the left and right side catalytic converters while tightening their nuts to 22 n.m (16 lb ft). Reinstallation of the front driveshaft happens if your vehicle has awd. Lower the vehicle while tightening the Catalytic Converter fasteners to 50 n.m (37 lb ft) torque level. Reinstall the right bank exhaust manifold heat shield as your last step.

OEM Cadillac STS Catalytic Converter

Cat. Converter

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4 Catalytic Converters found

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Cadillac STS Catalytic Converter, Passenger Side Part Number: 25939989
$1823.57 MSRP: $2734.93
You Save: $911.36 (34%)
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Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe; Converter
- Position: Passenger Side
- Replaces: 15828676
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2011 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac STS Catalytic Converter, Driver Side Part Number: 19420099
$1225.85 MSRP: $1828.00
You Save: $602.15 (33%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic "Kit"; Exhaust Pipe; Converter & Pipe; Converter; Converter, Catalytic Converter
- Position: Driver Side
- Replaces: 15288738, 12622977, 25768053
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Cadillac STS | Base | 6 Cyl 3.6 L GAS
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Cadillac STS Catalytic Converter, Driver Side Part Number: 19418949
$1987.37 MSRP: $2971.44
You Save: $984.07 (34%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic"Kit"; Converter & Pipe; Converter; Converter, Catalytic Converter
- Position: Driver Side
- Replaces: 15828675, 25857957, 25890498, 25971634
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2011 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS
View related parts
Cadillac STS Catalytic Converter, Passenger Side Part Number: 19420108
$1225.85 MSRP: $1828.00
You Save: $602.15 (33%)
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic "Kit"; Exhaust Pipe; Converter & Pipe; Converter; Converter, Catalytic Converter
- Position: Passenger Side
- Replaces: 12622978, 15288739, 25768054
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Cadillac STS | Base | 6 Cyl 3.6 L GAS

Cadillac STS Catalytic Converter

Want to cut long-term maintenance and repair costs? Choose OEM Catalytic Converter. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Cadillac STS parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Cadillac STS Catalytic Converter 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.

The Catalytic Converter is one of the crucial parts of the Cadillac STS's exhaust/emission systems, which is respected for its efficiency. Built to scope emissions that are toxic during the burning process and change them into less dangerous compounds, Catalytic Converter is vital for boosting at once both energy and security. Thus, converting carbon monoxide, hydrocarbons and oxides of nitrogen into water, carbon dioxide, and nitrogen the Cadillac STS models fully complies with the environmental requirements. It fits well with different Cadillac STS models; the catalytic converter has been updated from one with basic three-way systems to such that has enhanced techniques of cutting down the NOx emission. Thus, Catalytic Converter is an obligatory component that not only serves the purpose of emissions reduction but also can considerably enhance the car's performance with the help of options that provide optimal flow rate together with high catalyst effectiveness. These features include the direct-fit which in turn enable easy installation; a feature that sets it apart form some of the premier automotive markets. The Cadillac STS is one of the well-known luxury sedans and this high-quality catalytic converter is also very useful for the car, and further enhances the car's identity as a performance sedan. In that sense, Catalytic Converter reflects Cadillac's most recent technology and environmental consciousness by focusing on the minimization of emissions obtaining that the Cadillac STS delivers energy and elegance on wheels.

Cadillac STS Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter, Passenger Side
25939989
Q: How to replace the right side catalytic converter on Cadillac STS?
A:
Starting the right side Catalytic Converter replacement requires removal of the right bank exhaust manifold heat shield. Begin by taking out the nuts from the Catalytic Converter before raising the vehicle for support. The front driveshaft needs removal when your vehicle has awd. You should first disconnect both the left side and right side Catalytic Converter's Oxygen Sensor electrical connector and muffler pipe connections. Start by removing Exhaust Pipe fasteners from the right bank Catalytic Converter and then proceed with carefully removing the combination of the converter and the seal/heat shield and Oxygen Sensor from the exhaust manifold. Take out the Oxygen Sensor that exists within the Catalytic Converter. During installation connect the sensor to the Catalytic Converter and check the seal/heat shield sealing point on the converter for wear and make replacements if needed. Position the Catalytic Converter carefully onto the exhaust manifold while secure fasteners to hold it in place. After that, install the Catalytic Converter seal/heat shield to the converter. Reconnect the Oxygen Sensor wiring while conducting a seal inspection on the Catalytic Converter. Replace the seal if found damaged during the check. Secure the muffler pipes to the left and right side catalytic converters while tightening their nuts to 22 n.m (16 lb ft). Reinstallation of the front driveshaft happens if your vehicle has awd. Lower the vehicle while tightening the Catalytic Converter fasteners to 50 n.m (37 lb ft) torque level. Reinstall the right bank exhaust manifold heat shield as your last step.