How do you remove the Catalytic Converter on GMC Terrain?

To remove the catalyst from a vehicle, start by raising the vehicle and securing it on jack stands. Then, disconnect the electrical connector from the related oxygen sensor and remove the sensor. Support the other sections of the exhaust system as needed. Next, remove the retaining nuts from the front and rear catalyst mounting flanges. Finally, remove the catalyst and pull off the gaskets. To install the catalyst, simply reverse the removal steps, making sure to replace any rusted or damaged fasteners along with the gaskets.

Genuine GMC Terrain Catalytic Converter

Cat. Converter

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18 Catalytic Converters found

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GMC Terrain CONVERTER ASM,3WAY CTLTC (W/ EXH TAIL PIPE)<SEE GUIDE
Part Number: 19420271
$416.79 MSRP: $895.00
You Save: $478.21 (54%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Catalytic Converter, Center Pipe
- Replaces: 20900543, 25800946
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2017 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L
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GMC Terrain CONVERTER ASM,W/UP 3WAY CTLTC (KIT)
Part Number: 19420235
$1299.04 MSRP: $1946.71
You Save: $647.67 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Catalytic Converter
- Replaces: 12674521
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2021 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1 | 4 Cyl 1.5L
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GMC Terrain CONVERTER ASM,3WAY CTLTC(W/EXH RR MANIF PIPE)"KIT"
Part Number: 19418921
$999.59 MSRP: $1495.00
You Save: $495.41 (34%)
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Product Specifications
- Other Name: Catalytic Converter, Converter & Pipe
- Position: Rear
- Replaces: 20871342, 22794837, 23406152, 22741673
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2014 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L
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GMC Terrain CONVERTER ASM,3WAY CTLTC(W/EXH RR MANIF PIPE)"KIT"
Part Number: 19418924
$1552.09 MSRP: $2328.33
You Save: $776.24 (34%)
ADD TO CART
Product Specifications
- Position: Rear
- Replaces: 20910567
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2014 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L
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GMC Terrain CONVERTER ASM,3WAY CTLTC(W/EXH FRT MANIF PIPE)<SEE GUI
Part Number: 19420249
$866.99 MSRP: $1295.00
You Save: $428.01 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter
- Replaces: 20910496
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2017 GMC Terrain | SLE2 SUV, SLT SUV | 6 Cyl 3.0L, 6 Cyl 3.6L
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GMC Terrain CONVERTER ASM,W/UP 3WAY CTLTC (KIT)
Part Number: 19420236
$680.84 MSRP: $1014.24
You Save: $333.40 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter
- Replaces: 12666605
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2 | 4 Cyl 2.0L
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GMC Terrain CONVERTER ASM-W/UP 3WAY CTLTC
Part Number: 25203845
$921.70 MSRP: $1377.54
You Save: $455.84 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter
- Replaces: 12667331, 19420232
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1 | 4 Cyl 1.5L
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GMC Terrain CONVERTER ASM,3WAY CTLTC (W/ EXH TAIL PIPE)<SEE GUIDE
Part Number: 19420255
$612.49 MSRP: $911.14
You Save: $298.65 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter & Pipe
- Replaces: 25800952
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2017 GMC Terrain | SLE2 SUV, SLT SUV | 6 Cyl 3.0L, 6 Cyl 3.6L
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GMC Terrain Converter Assembly, W/Up 3Way Ctltc
Part Number: 25203924
$716.45 MSRP: $1067.94
You Save: $351.49 (33%)
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:
- 2022 GMC Terrain | 4 DOOR SLE2 , 4 DOOR SLT1 , 4 DOOR SLT2 | 4 Cyl 1.5L
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GMC Terrain CONVERTER ASM,3WAY CTLTC(W/EXH PIPE)"KIT"
Part Number: 19418935
$1087.71 MSRP: $1627.91
You Save: $540.20 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter
- Replaces: 25800888, 84018132
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 GMC Terrain | SLE2 SUV, SLT SUV | 6 Cyl 3.0L
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GMC Terrain CONVERTER ASM-W/UP 3WAY CTLTC
Part Number: 25203459
$638.54 MSRP: $950.43
You Save: $311.89 (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:
- 2023 GMC Terrain | 4 DOOR SLE2 , 4 DOOR SLT1 , 4 DOOR SLT2 | 4 Cyl 1.5L
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GMC Terrain CONVERTER ASM,3WAY CTLTC(W/EXH RR MANIF PIPE)<SEE GUID
Part Number: 19420245
$770.85 MSRP: $1150.00
You Save: $379.15 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter
- Position: Rear
- Replaces: 20910494
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2017 GMC Terrain | SLE2 SUV, SLT SUV | 6 Cyl 3.0L, 6 Cyl 3.6L
View related parts
GMC Terrain CONVERTER ASM,3WAY CTLTC(W/EXH PIPE)"KIT"
Part Number: 19418952
$999.59 MSRP: $1495.00
You Save: $495.41 (34%)
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter
- Replaces: 25800997, 84018131
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 GMC Terrain | SLE2 SUV, SLT SUV | 6 Cyl 3.0L
View related parts
GMC Terrain CONVERTER ASM,3WAY CTLTC (W/ EXH TAIL PIPE) "KIT"
Part Number: 19420128
$922.62 MSRP: $1378.91
You Save: $456.29 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Center Pipe
- Replaces: 20910568
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2015 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L
View related parts
GMC Terrain CONVERTER ASM-W/UP 3WAY CTLTC
Part Number: 25204794
$480.02 MSRP: $724.02
You Save: $244.00 (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 GMC Terrain | 4 DOOR SLE2 , 4 DOOR SLT1 , 4 DOOR SLT2 | 4 Cyl 1.5L
View related parts
GMC Terrain CONVERTER ASM,W/UP 3WAY CTLTC (W/ EXH PIPE)"KIT"
Part Number: 19418951
$1386.34 MSRP: $2078.33
You Save: $691.99 (34%)
ADD TO CART
Product Specifications
- Other Name: Converter & Pipe
- Replaces: 23128663
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L
View related parts
GMC Terrain Warm Up 3Way Catalytic Convertor Assembly (W/ Exhaust Pip
Part Number: 23128664
$1215.39 MSRP: $1830.00
You Save: $614.61 (34%)
Product Specifications
- Other Name: Converter Assembly, Warm Up 3Way Catalytic (W/ Exhaust Pip; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2017 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L
View related parts
GMC Terrain Oxidation Catalytic Converter Assembly (W/ Filter)
Part Number: 55496390
$575.46 MSRP: $864.80
You Save: $289.34 (34%)
Product Specifications
- Other Name: Converter Assembly, Oxidation Catalytic (W/ Filter)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1 | 4 Cyl 1.6L Diesel

GMC Terrain Catalytic Converter

Catalytic Converter in GMC Terrain vehicles includes as an essential part of emission systems, which transform toxic gases at Carbon Monoxide, Hydrocarbons, and Oxides of Nitrogen into less harm substance such as water, Carbon Dioxide and Nitrogen. This gadget has agents like platinum, palladium as well as rhodium, which aids in catalyzing particular sort of reactions without undergoing a change in the process. Catalytic converters of the past and present have been of different constructions, for instance the honeycomb construction and the beads constructed from ceramics. These converters can have problems with catalyst poisoning and stealing since they contain metals of high value, nevertheless, there are improvements reducing the exhaust pressure and boosting performance. Harmful emissions are also cut down through the help of catalytic converters, which makes them vital in environmental care and meeting emissions specifications.

Each OEM GMC Terrain 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.

GMC Terrain Catalytic Converter Parts Questions & Experts Answers

3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
23406152
Q: How do you remove the Catalytic Converter on GMC Terrain?
A: To remove the catalyst from a vehicle, start by raising the vehicle and securing it on jack stands. Then, disconnect the electrical connector from the related Oxygen Sensor and remove the sensor. Support the other sections of the exhaust system as needed. Next, remove the retaining nuts from the front and rear catalyst mounting flanges. Finally, remove the catalyst and pull off the gaskets. To install the catalyst, simply reverse the removal steps, making sure to replace any rusted or damaged fasteners along with the gaskets.

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