What is the purpose of the catalytic converter and how can it be replaced?

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 (HC) 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-muffler flange nuts and push the muffler back far enough for the studs to clear the converter flange. 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.

What are the important considerations for inspecting and repairing the Catalytic Converter,Exhaust Pipe and Muffler?

The exhaust manifolds, catalytic converters, muffler, resonators, the tailpipe and all connecting pipes, brackets, hangers and clamps are the components of the exhaust system. The mounting brackets and rubber hangers connect the exhaust system to the body. It is important to note that installation errors with any of these parts may cause excessive noise or vibration. In addition to this, regular checks should be conducted on it to ensure safety and silence. Inspect for damaged/bent parts, open seams/holes/loose connections/excessive corrosion or other defects which might permit exhaust fumes into the vehicle. Additionally, examine the pipe connections for leakage and hangers for wear and tear. Do not forget to inspect the catalytic converter when you are going by the exhaust system. In other words, decayed components of an exhaust should never be repaired but rather they need new ones. It will take welding equipment if these items have corroded together too much; in this case a muffler repair shop can remove corroded sections by means of a cutting torch as an easy way out. If you have ordinary tools at home you can save money by cutting with a hacksaw off those old components or better still use special pneumatic chisels if you have compressed air at hand. However, if you decide doing it alone so as to economize just cut off old parts with a hacksaw blade. Also use special pneumatic-cutting chisels if you have access to compressed air for doing this job yourself at home.Be careful as there is a danger of metal chips hitting your eyes so you'd better put on some protective goggles; besides it is also recommended wearing work gloves protecting your hands.Well then start taking out from rear end its car parts until reaching front end.Whenever dismounting the elements comprising systems' components it is important to put penetrating oil on all joints.The new gaskets should replace old ones, also it is necessary to install new hangers and clamps.Use anti-seize compound on the threads of all exhaust system fasteners during re-assembly. Besides, there should be enough space between those parts newly installed and all areas of the underbody that would protect the interior carpet and insulation from being damaged by overheated floor pan. Be especially concerned about the catalytic converter and heat shield. Every now and then, check the heat shield for cracks, dents or loose and missing nuts/bolts.It is important to inspect the converter for cracks or other damage.If a catalytic converter becomes bad it must be replaced immediately.

Genuine Chevrolet Colorado Catalytic Converter

Cat. Converter

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24 Catalytic Converters found

View related parts
Chevrolet Colorado Warm Up 3Way Catalytic Convertor Assembly
Part Number: 12642270
$1234.95 MSRP: $1850.00
You Save: $615.05 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, Warm Up 3Way Catalytic; Catalytic Converter
- Replaced by: 25203946
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2021 Chevrolet Colorado | CREW CAB - 5'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 4 Cyl 2.5L
View related parts
Chevrolet Colorado CONVERTER ASM,W/UP 3WAY CTLTC (W/ EXH PIPE)
Part Number: 19420267
$985.57 MSRP: $1473.87
You Save: $488.30 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter
- Replaced by: 85000357
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L
View related parts
Chevrolet Colorado Warm Up 3Way Catalytic Convertor Assembly (W/ Exhaust Pip
Part Number: 23451577
$985.57 MSRP: $1473.87
You Save: $488.30 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, Warm Up 3Way Catalytic (W/ Exhaust Pip; Catalytic Converter
- Replaced by: 85000357
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2020 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L
View related parts
Chevrolet Colorado MANIFOLD ASM,EXH (W/ 3WAY CTLTC CONV)"KIT"
Part Number: 19418950
$1707.18 MSRP: $2571.77
You Save: $864.59 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exhaust Manifold, Manifold
- Replaces: 12655846, 12607895, 12604221
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2012 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 5 Cyl 3.7L
View related parts
Chevrolet Colorado MANIFOLD ASM,EXH (W/ 3WAY CTLTC CONV)"KIT"
Part Number: 19420196
$2144.74 MSRP: $3222.24
You Save: $1077.50 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exhaust Manifold
- Replaces: 12607896, 12604220
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2012 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 4 Cyl 2.9L
View related parts
Chevrolet Colorado 3Way Catalytic Convertor (W/Exhaust Manifold Pipe)
Part Number: 20909929
$642.86 MSRP: $956.95
You Save: $314.09 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter,3Way Catalytic(W/Exhaust Manifold Pipe); Catalytic Converter, Converter & Pipe
- Replaces: 20786842, 25785792, 15811685
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2012 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 4 Cyl 2.9L, 5 Cyl 3.7L
View related parts
Chevrolet Colorado CONVERTER ASM,NOX CTLTC (W/ EXH PIPE)
Part Number: 19420259
$1075.83 MSRP: $1610.00
You Save: $534.17 (34%)
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter & Pipe
- Replaces: 23349693, 84392382, 84082618
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2018 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 4 Cyl 2.8L Diesel
View related parts
Chevrolet Colorado Catalytic Converter Assembly (W/ Exhaust Manifold Pipe)
Part Number: 84369360
$379.43 MSRP: $557.09
You Save: $177.66 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, Catalytic (W/ Exhaust Manifold Pipe); Catalytic Converter
- Replaced by: 85000356
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2020 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L
View related parts
Chevrolet Colorado 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 20910202
$516.89 MSRP: $766.95
You Save: $250.06 (33%)
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
- Replaces: 25785793, 15811686
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2012 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 4 Cyl 2.9L, 5 Cyl 3.7L
View related parts
Chevrolet Colorado 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15292649
$524.38 MSRP: $778.25
You Save: $253.87 (33%)
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:
- 2006 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 4 Cyl 2.8L, 5 Cyl 3.5L
View related parts
Chevrolet Colorado 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15139252
$728.36 MSRP: $1085.92
You Save: $357.56 (33%)
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:
- 2004-2005 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 4 Cyl 2.8L, 5 Cyl 3.5L
View related parts
Chevrolet Colorado CONVERTER ASM,3WAY CTLTC
Part Number: 19420269
$897.34 MSRP: $1340.78
You Save: $443.44 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter & Pipe
- Replaced by: 85544903
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2021 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L
View related parts
Chevrolet Colorado NOX Catalytic Converter Assembly (W/ Exh Pipe)
Part Number: 84392383
$387.59 MSRP: $569.46
You Save: $181.87 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, Nox Ctltc (W/ Exh Pipe); Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 4 Cyl 2.8L Diesel
View related parts
Chevrolet Colorado CONVERTER ASM,3WAY CTLTC
Part Number: 19420272
$986.33 MSRP: $1475.00
You Save: $488.67 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter & Pipe
- Replaced by: 19434298
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2016 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L
View related parts
Chevrolet Colorado 3-Way Catalytic Convertor (W/ Exhaust Rear Manifold Pipe)
Part Number: 25982291
$1032.09 MSRP: $1544.03
You Save: $511.94 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Asm 3Way Catalytic (W/ Exhaust Rear Mani ; Converter, Catalytic Converter; Catalytic Converter, Converter, Converter & Pipe
- Position: Rear
- Replaces: 25844504
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2012 Chevrolet Colorado | CREW CAB, EXTENDED CAB | 8 Cyl 5.3L
View related parts
Chevrolet Colorado Converter Assembly, Ctltc (W/ Exh Manif Pipe)
Part Number: 84486593
$379.43 MSRP: $557.09
You Save: $177.66 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter
- Replaced by: 85000356
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L
View related parts
Chevrolet Colorado 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
Part Number: 15217083
$488.37 MSRP: $723.93
You Save: $235.56 (33%)
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:
- 2006 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 4 Cyl 2.8L, 5 Cyl 3.5L
View related parts
Chevrolet Colorado 3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
Part Number: 84414670
$807.96 MSRP: $1205.97
You Save: $398.01 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Ctltc(W/Exh Pipe); Catalytic Converter, Converter & Pipe
- Replaced by: 86780903
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2021 Chevrolet Colorado | CREW CAB - 5'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 4 Cyl 2.5L
View related parts
Chevrolet Colorado Catalytic Converter Assembly (W/ Exhaust Manifold Pipe)
Part Number: 23235691
$910.46 MSRP: $1418.33
You Save: $507.87 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, Catalytic (W/ Exhaust Manifold Pipe); Catalytic Converter
- Replaced by: 19420260
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2016 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L
View related parts
Chevrolet Colorado CONVERTER ASM,W/UP 3WAY CTLTC (W/ EXH PIPE)
Part Number: 19420295
$977.49 MSRP: $1461.66
You Save: $484.17 (34%)
Product Specifications
- Other Name: Catalytic Converter
- Replaces: 23235690, 94779897
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2016 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L

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1-20 of 24 Results

Chevrolet Colorado Catalytic Converter Parts Questions & Experts Answers

3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
15292649
Q: What is the purpose of the catalytic converter and how can it be replaced?
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 (HC) 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-muffler flange nuts and push the muffler back far enough for the studs to clear the converter flange. 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.
3-Way Catalytic Convertor (W/ Exhaust Rear Manifold Pipe)
25982291
Q: What are the important considerations for inspecting and repairing the Catalytic Converter,Exhaust Pipe and Muffler?
A: The exhaust manifolds, catalytic converters, muffler, resonators, the tailpipe and all connecting pipes, brackets, hangers and clamps are the components of the exhaust system. The mounting brackets and rubber hangers connect the exhaust system to the body. It is important to note that installation errors with any of these parts may cause excessive noise or vibration. In addition to this, regular checks should be conducted on it to ensure safety and silence. Inspect for damaged/bent parts, open seams/holes/loose connections/excessive corrosion or other defects which might permit exhaust fumes into the vehicle. Additionally, examine the pipe connections for leakage and hangers for wear and tear. Do not forget to inspect the catalytic converter when you are going by the exhaust system. In other words, decayed components of an exhaust should never be repaired but rather they need new ones. It will take welding equipment if these items have corroded together too much; in this case a muffler repair shop can remove corroded sections by means of a cutting torch as an easy way out. If you have ordinary tools at home you can save money by cutting with a hacksaw off those old components or better still use special pneumatic chisels if you have compressed air at hand. However, if you decide doing it alone so as to economize just cut off old parts with a hacksaw blade. Also use special pneumatic-cutting chisels if you have access to compressed air for doing this job yourself at home.Be careful as there is a danger of metal chips hitting your eyes so you'd better put on some protective goggles; besides it is also recommended wearing work gloves protecting your hands.Well then start taking out from rear end its car parts until reaching front end.Whenever dismounting the elements comprising systems' components it is important to put penetrating oil on all joints.The new gaskets should replace old ones, also it is necessary to install new hangers and clamps.Use anti-seize compound on the threads of all exhaust system fasteners during re-assembly. Besides, there should be enough space between those parts newly installed and all areas of the underbody that would protect the interior carpet and insulation from being damaged by overheated floor pan. Be especially concerned about the catalytic converter and heat shield. Every now and then, check the heat shield for cracks, dents or loose and missing nuts/bolts.It is important to inspect the converter for cracks or other damage.If a catalytic converter becomes bad it must be replaced immediately.