What is the purpose and process of replacing a catalytic converter?

The catalytic converter is an emission control device added to the exhaust system to reduce pollutants from the exhaust gas stream. A three-way (reduction) catalyst design is used. The catalytic coating on the three-way catalyst contains platinum and rhodium, which lowers the levels of oxides of nitrogen (NOx) as well as hydrocarbons (HG) and carbon monoxide (CO). The test equipment for a catalytic converter is expensive and highly sophisticated. If you suspect that the converter on your vehicle is malfunctioning, take it to a dealer or authorized emissions inspection facility for diagnosis and repair. To replace the converter, raise the vehicle and support it securely on jackstands. Remove the bolts and detach the catalytic converter header pipe from the exhaust manifold. Remove the catalytic converter-to-exhaust pipe flange bolts and separate the exhaust pipe from the catalytic converter. Support the exhaust pipe. Remove the catalytic converter and pipe assembly. Clean the carbon deposits from the mounting flanges. Installation is the reverse of removal. Note: Because of a Federally mandated warranty which covers emissions-related components such as the catalytic converter, check with a dealer service department before replacing the converter at your own expense.

Genuine Chevrolet Trailblazer Catalytic Converter

Cat. Converter

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18 Catalytic Converters found

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Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15808213
$1208.33 MSRP: $1809.85
You Save: $601.52 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Chevrolet Trailblazer | 4 DOOR EXT | 8 Cyl 5.3L
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Chevrolet Trailblazer Converter Assembly, W/Up 3Way Ctltc
Part Number: 12705331
$352.45 MSRP: $526.05
You Save: $173.60 (33%)
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Product Specifications
- Other Name: Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021 Chevrolet Trailblazer | 4 DOOR EXT | 3 Cyl 1.3L
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Chevrolet Trailblazer Converter Assembly, W/Up 3Way Ctltc
Part Number: 12709243
$362.00 MSRP: $530.93
You Save: $168.93 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021 Chevrolet Trailblazer | 4 DOOR EXT | 3 Cyl 1.3L
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Chevrolet Trailblazer Converter Assembly, W/Up 3Way Ctltc
Part Number: 55515139
$688.28 MSRP: $1025.46
You Save: $337.18 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter
- Replaces: 55495073
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021 Chevrolet Trailblazer | 4 DOOR EXT | 3 Cyl 1.2L
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Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 25839176
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Chevrolet Trailblazer | 4 DOOR | 6 Cyl 4.2L
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Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 25887914
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P; Catalytic Converter, Converter & Pipe
- Replaces: 15892954
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Catalytic Converter Assembly (W/ Exhaust Manifold Pipe)
Part Number: 15083262
$1112.65 MSRP: $1665.53
You Save: $552.88 (34%)
Product Specifications
- Other Name: Converter Assembly, Catalytic (W/ Exhaust Manifold Pipe); Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15119821
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 5.3L
View related parts
Chevrolet Trailblazer Catalytic Converter (W/ Exhaust Pipe & Tail Pipe)
Part Number: 10367488
Product Specifications
- Other Name: Muffler Assembly, Exhaust (W/ Exhaust Pipe & Tail Pipe); Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Chevrolet Trailblazer | 4 DOOR EXT | 8 Cyl 5.3L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15190659
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003 Chevrolet Trailblazer | 4 DOOR EXT | 6 Cyl 4.2L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor (W/Exhaust Manifold Pipe)
Part Number: 15216000
Product Specifications
- Other Name: Converter,3Way Catalytic(W/Exhaust Manifold Pipe); Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Chevrolet Trailblazer | 4 DOOR | 6 Cyl 4.2L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15216001
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15798414
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 5.3L, 8 Cyl 6.0L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor (W/Exhaust Manifold Pipe)
Part Number: 15276514
Product Specifications
- Other Name: Converter,3Way Catalytic(W/Exhaust Manifold Pipe); Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Chevrolet Trailblazer | 4 DOOR | 6 Cyl 4.2L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15813517
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P; Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 5.3L, 8 Cyl 6.0L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15276513
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Trailblazer | 4 DOOR EXT | 6 Cyl 4.2L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor (W/Exhaust Manifold Pipe)
Part Number: 15155245
Product Specifications
- Other Name: Converter,3Way Catalytic(W/Exhaust Manifold Pipe); Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Chevrolet Trailblazer | 4 DOOR | 6 Cyl 4.2L
View related parts
Chevrolet Trailblazer 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold *Marked Print *Marked Print
Part Number: 15050555
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold *Marked Print; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Chevrolet Trailblazer | 4 DOOR EXT | 6 Cyl 4.2L

Chevrolet Trailblazer Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter Assembly (W/ Exhaust Manifold Pipe)
15083262
Q: What is the purpose and process of replacing a catalytic converter?
A: The catalytic converter is an emission control device added to the exhaust system to reduce pollutants from the exhaust gas stream. A three-way (reduction) catalyst design is used. The catalytic coating on the three-way catalyst contains platinum and rhodium, which lowers the levels of oxides of nitrogen (NOx) as well as hydrocarbons (HG) and carbon monoxide (CO). The test equipment for a catalytic converter is expensive and highly sophisticated. If you suspect that the converter on your vehicle is malfunctioning, take it to a dealer or authorized emissions inspection facility for diagnosis and repair. To replace the converter, raise the vehicle and support it securely on jackstands. Remove the bolts and detach the catalytic converter header pipe from the exhaust manifold. Remove the catalytic converter-to-exhaust pipe flange bolts and separate the exhaust pipe from the catalytic converter. Support the exhaust pipe. Remove the catalytic converter and pipe assembly. Clean the carbon deposits from the mounting flanges. Installation is the reverse of removal. Note: Because of a Federally mandated warranty which covers emissions-related components such as the catalytic converter, check with a dealer service department before replacing the converter at your own expense.

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