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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21 Catalytic Converters found

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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
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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:
- 2021-2023 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L
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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
ADD TO CART
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%)
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 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:
- 2021-2023 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
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Chevrolet Trailblazer CONVERTER ASM-W/UP 3WAY CTLTC
Part Number: 25204734
$502.47 MSRP: $757.87
You Save: $255.40 (34%)
Ships in 1-2 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:
- 2024-2025 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L
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Chevrolet Trailblazer CONVERTER ASM-W/UP 3WAY CTLTC
Part Number: 25204733
$819.49 MSRP: $1236.03
You Save: $416.54 (34%)
Ships in 1-2 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:
- 2024-2025 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer CONVERTER ASM-W/UP 3WAY CTLTC
Part Number: 25204398
$1122.63 MSRP: $1680.59
You Save: $557.96 (34%)
Ships in 1-2 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:
- 2024-2025 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
View related parts
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
View related parts
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
View related parts
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

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1-20 of 21 Results

Chevrolet Trailblazer Catalytic Converter

The Catalytic Converter of Chevrolet Trailblazer vehicles is one of the necessary constituents of the emission system that changes toxic gases such as Carbon Monoxide, Hydrocarbons, and Oxides of Nitrogen into less lethal fumes such as water, Carbon Dioxide, and Nitrogen. This gadget hosts chemical reagents such as platinum, palladium, and rhodium, which acts like an agent to encourage reactions but will not change. There are cases that catalytic converters in Trailblazers have problems such as internal plugging, low efficiency, and can even be structurally damaged by a chip on the road hence manifesting in poor performance as well as Check Engine lights. For even higher flow rates, there are high flow performance cat-back catalytic converters for sale which can be direct fit or universal types where cutting and clamping will be needed for the fitment. In general, Catalytic Converters are essential in lowering the emission of hazardous gases and adhering to the emission standards of Chevrolet Trailblazer cars.

Each OEM Chevrolet Trailblazer Catalytic Converter we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

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.

Related Chevrolet Trailblazer Parts

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2025 Catalytic Converter 2024 Catalytic Converter 2023 Catalytic Converter 2022 Catalytic Converter 2021 Catalytic Converter 2009 Catalytic Converter 2008 Catalytic Converter 2007 Catalytic Converter 2006 Catalytic Converter 2005 Catalytic Converter 2004 Catalytic Converter 2003 Catalytic Converter 2002 Catalytic Converter