How to replace the catalytic converter (L26/3.8L) on Buick Lucerne?

The first step in Catalytic Converter (L26/3.8L) replacement requires vehicle elevation. First disconnect the heated Oxygen Sensor electrical connector then unscrew the stud nuts which secure the Catalytic Converter pipe before removing its gasket. Before you detach the Catalytic Converter nuts and Catalytic Converter itself and Catalytic Converter gasket you must support the exhaust system. Before installation of new ho2s perform an inspection of the Exhaust Manifold surfaces along with the gasket mating areas on the exhaust pipe. For installation, first, install the ho2s. The flexible coupling in the Catalytic Converter assembly demands converter support and strictly limits rear vertical motion between 6-degree upward or downward positions. Attach a fresh gasket to each exhaust pipe stud afterward you can put in the Catalytic Converter and support it properly. Fix the Catalytic Converter nuts at 60 n.m (44 lb ft) of torque. The next step involves mounting new sparse gaskets to the Catalytic Converter pipe alongside its stud nuts before tightening everything to 35 n.m (26 lb ft). Use a wrench to detach the exhaust system support then connect the ho2s electrical connector before checking for exhaust leaks and underbody contact and finishing by lowering the vehicle.

OEM Buick Lucerne Catalytic Converter

Cat. Converter

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9 Catalytic Converters found

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Buick Lucerne Catalytic Converter Part Number: 25793491
$575.51 MSRP: $851.52
You Save: $276.01 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Buick Lucerne | CX, CXL, CXL Special Edition | 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Lucerne Catalytic Converter Part Number: 19420116
$1236.87 MSRP: $1922.48
You Save: $685.61 (36%)
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 19332463, 15921944
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Buick Lucerne | CX, CXL | 6 Cyl 3.8 L GAS
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Buick Lucerne Catalytic Converter Part Number: 15886962
$1096.67 MSRP: $1703.08
You Save: $606.41 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Buick Lucerne | CX, CXL, CXL Special Edition | 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Lucerne Cross Over Part Number: 24503125
$437.51 MSRP: $654.11
You Save: $216.60 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Crossover Pipe; Front Pipe; Cross Over Pipe; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Buick Lucerne | CX, CXL | 6 Cyl 3.8 L GAS
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Buick Lucerne Exhaust Pipe Part Number: 12564240
$61.91 MSRP: $92.15
You Save: $30.24 (33%)
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Crossover Pipe; Front Pipe; Cross Over Pipe
- Position: Front
- Replaces: 12556489
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Buick Lucerne | CXL, CXS, Super | 8 Cyl 4.6 L GAS
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Buick Lucerne Catalytic Converter Part Number: 25793479
Product Specifications
- Other Name: Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Buick Lucerne | CXL, CXS, Super | 8 Cyl 4.6 L GAS
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Buick Lucerne Catalytic Converter Part Number: 15921945
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15786790, 19332465
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Buick Lucerne | CX, CXL | 6 Cyl 3.8 L GAS
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Buick Lucerne Catalytic Converter Part Number: 15886960
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Buick Lucerne | CX, CXL, CXL Special Edition | 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Lucerne Catalytic Converter Part Number: 15921985
$1823.92 MSRP: $2726.00
You Save: $902.08 (34%)
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Buick Lucerne | CX, CXL | 6 Cyl 3.8 L GAS

Buick Lucerne Catalytic Converter

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The Buick Lucerne Catalytic Converter is a part of the exhaust system in Buick's full-size premium luxury sedan, Lucerne that was manufactured from 2005 to 2011. Chemically efficient, the Buick Lucerne Catalytic Converter which has made a name for itself as a dependable and high-performing auto part, converts toxic gases, including Carbon Monoxide, Hydrocarbons, and Oxides of Nitrogen to less hazardous emissions to boost the vehicle's performance and safety. This converter is made up of a honeycomb core that has been electroplated with precious metals such as platinum, palladium and rhodium that at the same time, lower back pressure of the exhaust and improve the engines power. The Buick Lucerne interacts with several models; in the same way, they uphold the company's tag for emissions control and responsibility towards the environment. However, it should be noted that the availability of the additional features such as, the serial-based Magnetic Ride Control Technology enriches the functionality of the Lucerne's Catalytic Converter through enhancing the Automotive Control and Comfort. Buick Lucerne Catalytic Converter is famous in auto market for being able to meet and surpass set emission requirements and at the same time being part of the total system of the car. Thanks to its quality, effectiveness, and reliability in safety, the Buick Lucerne Catalytic Converter is an important resource among the car's highlights as a premium sedan favorite among car lovers, guaranteeing that the driver practices a comfortable and environmentally friendly highway experience.

Buick Lucerne Catalytic Converter Parts and Q&A

Exhaust Pipe
12564240
Q: How to replace the catalytic converter (L26/3.8L) on Buick Lucerne?
A:
The first step in Catalytic Converter (L26/3.8L) replacement requires vehicle elevation. First disconnect the heated Oxygen Sensor electrical connector then unscrew the stud nuts which secure the Catalytic Converter pipe before removing its gasket. Before you detach the Catalytic Converter nuts and Catalytic Converter itself and Catalytic Converter gasket you must support the exhaust system. Before installation of new ho2s perform an inspection of the Exhaust Manifold surfaces along with the gasket mating areas on the exhaust pipe. For installation, first, install the ho2s. The flexible coupling in the Catalytic Converter assembly demands converter support and strictly limits rear vertical motion between 6-degree upward or downward positions. Attach a fresh gasket to each exhaust pipe stud afterward you can put in the Catalytic Converter and support it properly. Fix the Catalytic Converter nuts at 60 n.m (44 lb ft) of torque. The next step involves mounting new sparse gaskets to the Catalytic Converter pipe alongside its stud nuts before tightening everything to 35 n.m (26 lb ft). Use a wrench to detach the exhaust system support then connect the ho2s electrical connector before checking for exhaust leaks and underbody contact and finishing by lowering the vehicle.