What is the purpose and location of the catalytic converter?

Located underneath the vehicle, the catalytic converter is an emission control device. This device reduces the pollutants in the exhaust gas stream such as hydrocarbons, carbon monoxide and oxides of nitrogen. These pollutants can be reduced by two catalysts that are used in the converter. If you suspect a problem, take it to a dealer or authorized emissions inspection facility for diagnosis and repair. Every time the vehicle is raised for underbody servicing, check the converter for leaks, corrosion and other dents which may have caused damage to this part. A vacuum gauge can tell if there is a restricted converter. If there is a sharp drop in vacuum after the fourth test compared to idle, then there may be a plugging or restriction in the converter. Because cutting could be required during replacement, it is best to let someone else replace it if one lacks these tools; this can be done at a muffler shop or dealer service department. To replace it, raise vehicle, disconnect oxygen sensor connector, take off flange nuts at front of converter and remove catalyst based on specific setup of exhaust system. The process of installation is simply reversing what was done when removing.

Genuine Cadillac DTS Catalytic Converter

Cat. Converter

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5 Catalytic Converters found

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Cadillac DTS 3Way Catalytic Convertor Assembly
Part Number: 10367532
$1036.43 MSRP: $1550.56
You Save: $514.13 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic ; Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Cadillac DTS | 4 DOOR | 8 Cyl 4.6L
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Cadillac DTS CONVERTER ASM,3WAY CTLTC "KIT"
Part Number: 19418965
$1033.31 MSRP: $1545.86
You Save: $512.55 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Catalytic Converter
- Replaces: 10367531
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Cadillac DTS | 4 DOOR | 8 Cyl 4.6L
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Cadillac DTS 3Way Catalytic Convertor Assembly
Part Number: 25793478
$1363.08 MSRP: $2130.00
You Save: $766.92 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic ; Converter, Catalytic Converter; Catalytic Converter
- Replaced by: 19419595
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Cadillac DTS | 4 DOOR, FUNERAL COACH, LIMOUSINE | 8 Cyl 4.6L
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Cadillac DTS Exhaust Manifold Pipe Assembly Front
Part Number: 12564240
$61.64 MSRP: $92.15
You Save: $30.51 (34%)
Product Specifications
- Other Name: Pipe Assembly, Exhaust Manifold Front
- Position: Front
- Replaces: 12556489
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Cadillac DTS | 4 DOOR, FUNERAL COACH, LIMOUSINE | 8 Cyl 4.6L
View related parts
Cadillac DTS 3Way Catalytic Convertor Assembly
Part Number: 25793479
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic ; Converter, Catalytic Converter; Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Cadillac DTS | 4 DOOR, FUNERAL COACH, LIMOUSINE | 8 Cyl 4.6L

Cadillac DTS Catalytic Converter Parts Questions & Experts Answers

Exhaust Manifold Pipe Assembly Front
12564240
Q: What is the purpose and location of the catalytic converter?
A: Located underneath the vehicle, the catalytic converter is an emission control device. This device reduces the pollutants in the exhaust gas stream such as hydrocarbons, carbon monoxide and oxides of nitrogen. These pollutants can be reduced by two catalysts that are used in the converter. If you suspect a problem, take it to a dealer or authorized emissions inspection facility for diagnosis and repair. Every time the vehicle is raised for underbody servicing, check the converter for leaks, corrosion and other dents which may have caused damage to this part. A vacuum gauge can tell if there is a restricted converter. If there is a sharp drop in vacuum after the fourth test compared to idle, then there may be a plugging or restriction in the converter. Because cutting could be required during replacement, it is best to let someone else replace it if one lacks these tools; this can be done at a muffler shop or dealer service department. To replace it, raise vehicle, disconnect oxygen sensor connector, take off flange nuts at front of converter and remove catalyst based on specific setup of exhaust system. The process of installation is simply reversing what was done when removing.