How to replace the left side catalytic converter on GMC Acadia?

Before you can replace the left side catalytic converter, take off the heat shield for the exhaust manifold and loosen the catalytic converter to exhaust manifold nuts and the exhaust flexible pipe. After that, loosen the catalytic converter brace bolt and disconnect the catalytic converter from the exhaust manifold, disposing of the catalytic converter to exhaust manifold seal . For installation, put a new exhaust manifold seal on the catalytic converter and fasten it to the exhaust manifold. Make sure you put in the catalytic converter brace bolt and tighten it to 41 N.m (30 lb ft). Put the exhaust flexible pipe back in place and fasten the catalytic converter to the exhaust manifold nuts to 50 N.m (37 lb ft). In the end, attach the exhaust manifold heat shield.

OEM GMC Acadia Catalytic Converter

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20 Catalytic Converters found

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GMC Acadia Catalytic Converter
Part Number: 12678254
$1022.73 MSRP: $1523.01
You Save: $500.28 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018 GMC Acadia | SL, SLE, SLT | 4 Cyl 2.5 L GAS
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GMC Acadia Catalytic Converter, Driver Side
Part Number: 84131556
$1115.07 MSRP: $1661.67
You Save: $546.60 (33%)
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Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe
- Position: Driver Side
- Replaces: 23386840
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017 GMC Acadia | Denali, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia Catalytic Converter
Part Number: 55516909
$453.56 MSRP: $681.03
You Save: $227.47 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Replaces: 55511596
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 GMC Acadia | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Acadia Catalytic Converter, Passenger Side
Part Number: 19418920
$1070.08 MSRP: $1717.10
You Save: $647.02 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit" See G; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Passenger Side
- Replaces: 15903506
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia Catalytic Converter, Passenger Side
Part Number: 19420290
$799.61 MSRP: $1188.00
You Save: $388.39 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Pipe); Converter & Pipe; Converter, Catalytic Converter; Exhaust Pipe
- Position: Passenger Side
- Replaces: 23229314
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia Catalytic Converter
Part Number: 19418968
$558.62 MSRP: $826.15
You Save: $267.53 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Pipe) "Kit"; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 20906951
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia Catalytic Converter
Part Number: 12676948
$983.54 MSRP: $1464.18
You Save: $480.64 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 GMC Acadia | SL, SLE, SLT | 4 Cyl 2.5 L GAS
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GMC Acadia Catalytic Converter
Part Number: 19418938
$613.47 MSRP: $908.52
You Save: $295.05 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Pipe) "Kit"; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15903508
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia Catalytic Converter
Part Number: 23229312
$491.95 MSRP: $726.05
You Save: $234.10 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter
Part Number: 55516911
$1200.60 MSRP: $1790.09
You Save: $589.49 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Replaces: 55508201, 55512009
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020 GMC Acadia | SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Acadia Catalytic Converter, Passenger Side
Part Number: 19419591
$1124.27 MSRP: $1675.49
You Save: $551.22 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Passenger Side
- Replaces: 15118654
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 GMC Acadia | SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia Catalytic Converter, Driver Side
Part Number: 19418923
$1209.99 MSRP: $1804.18
You Save: $594.19 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Replaces: 15903507
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter, Driver Side
Part Number: 19420111
$1133.62 MSRP: $1689.52
You Save: $555.90 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Replaces: 25776079
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 GMC Acadia | SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter, Driver Side
Part Number: 19418929
$930.84 MSRP: $1385.05
You Save: $454.21 (33%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Replaces: 20906952
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter, Passenger Side
Part Number: 19418927
$924.41 MSRP: $1375.38
You Save: $450.97 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Passenger Side
- Replaces: 20906953
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter, Driver Side
Part Number: 85132438
$205.45 MSRP: $294.55
You Save: $89.10 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe
- Position: Driver Side
- Replaced by: 85132440
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2023 GMC Acadia | AT4, Denali, SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter, Passenger Side
Part Number: 85132441
$194.14 MSRP: $277.63
You Save: $83.49 (31%)
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Position: Passenger Side
- Replaces: 85132439
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2023 GMC Acadia | AT4, Denali, SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter, Driver Side
Part Number: 19420303
$644.43 MSRP: $955.00
You Save: $310.57 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Pipe); Converter & Pipe; Converter, Catalytic Converter
- Position: Driver Side
- Replaces: 23229313
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016 GMC Acadia | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter, Passenger Side
Part Number: 84131555
$737.67 MSRP: $1095.00
You Save: $357.33 (33%)
Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe
- Position: Passenger Side
- Replaced by: 85147526
- Replaces: 23386841
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017 GMC Acadia | Denali, SLE, SLT | 6 Cyl 3.6 L GAS
View related parts
GMC Acadia Catalytic Converter
Part Number: 12674560
$683.09 MSRP: $1013.04
You Save: $329.95 (33%)
Product Specifications
- Other Name: Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017 GMC Acadia | SL, SLE, SLT | 4 Cyl 2.5 L GAS

GMC Acadia Catalytic Converter

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GMC Acadia Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter, Driver Side
19420111
Q: How to replace the left side catalytic converter on GMC Acadia?
A: Before you can replace the left side catalytic converter, take off the heat shield for the exhaust manifold and loosen the catalytic converter to exhaust manifold nuts and the exhaust flexible pipe. After that, loosen the catalytic converter brace bolt and disconnect the catalytic converter from the exhaust manifold, disposing of the catalytic converter to exhaust manifold seal . For installation, put a new exhaust manifold seal on the catalytic converter and fasten it to the exhaust manifold. Make sure you put in the catalytic converter brace bolt and tighten it to 41 N.m (30 lb ft). Put the exhaust flexible pipe back in place and fasten the catalytic converter to the exhaust manifold nuts to 50 N.m (37 lb ft). In the end, attach the exhaust manifold heat shield.

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