How to replace the catalytic converter heat shield on Cadillac DeVille?

To remove the Catalytic Converter heat shield, first remove the exhaust system also considering wearing eye protection in order to avoid injury during the process of drilling rivets. Drill the center of the heat shield rivets, then pull down on the heat shield, to disengage it from the retaining stud, slide it to the left, out from under the oxygen sensor wiring harness heat shield. Position the heat shield when installing by sliding it to the right for fitting under the oxygen sensor wiring harness heat shield, pressing it up for the retaining stud and matching the holes of the heat shield with those of the floor panel. Make use of a rivet gun to attach the oxygen sensor wiring harness heat shield and the Catalytic Converter heat shield on the floor panel using a single rivet and install the remainder of the rivets and lastly fixing the exhaust system back.

OEM Cadillac DeVille Catalytic Converter

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22 Catalytic Converters found

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Cadillac DeVille 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:
- 1996-2005 Cadillac DeVille | Base, Concours, d'Elegance, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25056586
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985 Cadillac DeVille | Base, Cabriolet, d'Elegance | 8 Cyl 4.1 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25103919
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1987 Cadillac DeVille | Base, d'Elegance, Touring | 8 Cyl 4.1 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25145132
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Replaces: 25131658
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Cadillac DeVille | Base | 8 Cyl 4.9 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25678524
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Exhaust Pipe; Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 Cadillac DeVille | Base, DHS, DTS | 8 Cyl 4.6 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25727006
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Exhaust Pipe; Muffler; Muffler Assembly; Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Cadillac DeVille | Base, DHS, DTS | 8 Cyl 4.6 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25678523
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Exhaust Pipe; Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 Cadillac DeVille | Base, DHS, DTS | 8 Cyl 4.6 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25709776
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/ Catalytic Converter, Exhaust; Exhaust Pipe; Intermediate Pipe; Intermed Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001 Cadillac DeVille | Base, DHS, DTS | 8 Cyl 4.6 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25145556
Product Specifications
- Other Name: Converter; Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Cadillac DeVille | Base, Touring | 8 Cyl 4.9 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25145124
Product Specifications
- Other Name: Converter Assembly-Warm Up 3Way Catalytic; Converter; Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Cadillac DeVille | Concours | 8 Cyl 4.6 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25056619
Product Specifications
- Other Name: Converter; Converter, Exhaust System Catalytic; Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 Cadillac DeVille | Base | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac DeVille Catalytic Converter Part Number: 25056700
Product Specifications
- Other Name: Converter; Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985 Cadillac DeVille | Base, Cabriolet, d'Elegance | 8 Cyl 4.1 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25128263
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1990 Cadillac DeVille | Base, d'Elegance, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 4.5 L GAS
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Cadillac DeVille Exhaust Pipe Part Number: 25724154
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Crossover Pipe; Front Pipe; Connector Pipe
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Cadillac DeVille | Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
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Cadillac DeVille Converter Part Number: 25128764
Product Specifications
- Other Name: Converter, Catalytic Converter; Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1987 Cadillac DeVille | Base, d'Elegance, Touring | 8 Cyl 4.1 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25161559
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 Cadillac DeVille | Base, Concours, d'Elegance | 8 Cyl 4.6 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25314806
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Replaces: 25161562
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-1998 Cadillac DeVille | Base, Concours, d'Elegance | 8 Cyl 4.6 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25145555
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Cadillac DeVille | Base, Touring | 8 Cyl 4.9 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25129703
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991 Cadillac DeVille | Base, Spring Edition, Touring | 8 Cyl 4.9 L GAS
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Cadillac DeVille Catalytic Converter Part Number: 25316765
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999 Cadillac DeVille | Base, Concours, d'Elegance | 8 Cyl 4.6 L GAS

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Cadillac DeVille 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 DeVille parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Cadillac DeVille 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 in Cadillac DeVille vehicles is the part of the emissions system and it controls certain noxious gases such as Carbon Monoxide, Hydrocarbons, and Oxides of Nitrogen and converts them into less toxic products like water, Carbon Dioxide, and Nitrogen. Generally constructed with a honeycomb structure coated with the catalysts such as platinum, palladium, and rhodium, this small device brings about the described change through redox reactions. Several conditions for converter failure include engine problems or high impact in an accident, poor performance, noises like a rumbling, or Check Engine light. Higher performance catalytic converters for better performance that provides excellent oxidation and reduction systems that are efficient in their work and still preserve high potency of the catalysts. There are universal and direct fit converters that are available and while the former is universal, the latters are designed to replace the factory converters without the need to cut or weld it.

Cadillac DeVille Catalytic Converter Parts Questions & Experts Answers

Exhaust Pipe
12564240
Q: How to replace the catalytic converter heat shield on Cadillac DeVille?
A:
To remove the Catalytic Converter heat shield, first remove the exhaust system also considering wearing eye protection in order to avoid injury during the process of drilling rivets. Drill the center of the heat shield rivets, then pull down on the heat shield, to disengage it from the retaining stud, slide it to the left, out from under the oxygen sensor wiring harness heat shield. Position the heat shield when installing by sliding it to the right for fitting under the oxygen sensor wiring harness heat shield, pressing it up for the retaining stud and matching the holes of the heat shield with those of the floor panel. Make use of a rivet gun to attach the oxygen sensor wiring harness heat shield and the Catalytic Converter heat shield on the floor panel using a single rivet and install the remainder of the rivets and lastly fixing the exhaust system back.