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Buick Catalytic Converter

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2000-2005 Buick LeSabre 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT4112000-2005 Buick LeSabre 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT411
A-Premium®Part # APCCT411
2000-2005 Buick LeSabre 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT411
4.4311 Reviews
$349.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick LeSabre: 2000 2001 2002 2003 2004 2005
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
645979, 50316
item #1000NTUC
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
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2013-2015 Buick LaCrosse 1pc Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT565
A-Premium®Part # APCCT565
2013-2015 Buick LaCrosse 1pc Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT565
4.4311 Reviews
$241.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick LaCrosse: 2013 2014 2015
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
55744
item #1012W7Y7
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This item fits the vehicle with FWD (Front Wheel Drive), Federal Emissions System, and Ultra Direct Fit Type.
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2012-2017 Buick Verano 1pc Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT631
A-Premium®Part # APCCT631
2012-2017 Buick Verano 1pc Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT631
4.4311 Reviews
$202.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Verano: 2012 2013 2014 2015 2016 2017
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
644093, 50584, 54937
item #1012W7WG
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
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AP Emissions 774368 Catalytic Converter, Front Left Driver Side
AP EmissionsPart # 774368
AP Emissions 774368 Catalytic Converter, Front Left Driver Side
51 Reviews
$1,085.99
Quantity Less than 5
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3-year warranty
90 days free return
Fits 2010 - 2010 Buick Enclave, 2015 - 2015 Chevrolet Traverse, 2011 - 2011 Buick Enclave, 2014 - 2014 Chevrolet Traverse, 2009 - 2009 GMC Acadia, 2013 - 2013 Chevrolet Traverse, 2012 - 2012 Chevrolet Traverse, 2015 - 2015 GMC Acadia, 2013 - 2013 GMC Acadia, 2009 - 2009 Chevrolet Traverse, 2010 - 2010 Saturn Outlook, 2014 - 2014 GMC Acadia, 2011 - 2011 GMC Acadia, 2012 - 2012 GMC Acadia, 2010 - 2010 GMC Acadia, 2009 - 2009 Buick Enclave, 2011 - 2011 Chevrolet Traverse, 2014 - 2014 Buick Enclave, 2010 - 2010 Chevrolet Traverse, 2015 - 2015 Buick Enclave
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
774368
item #10010DCQ
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2000-2005 Buick Park Avenue 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT411
A-Premium®Part # APCCT411
2000-2005 Buick Park Avenue 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT411
4.4311 Reviews
$349.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Park Avenue: 2000 2001 2002 2003 2004 2005
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
645979, 50316
item #1000NSDA
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
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2016-2019 Buick Encore 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT139
A-Premium®Part # APCCT139
2016-2019 Buick Encore 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT139
4.4311 Reviews
$294.99
Quantity Less than 5
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Encore: 2016 2017 2018 2019
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
674-051, 12667326, 12641117, 12673199, 19420230
item #10055AL4
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This item fits the L4 1.4L models only.
【Note-3】This item only comes with one oxygen sensor plug.
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2002-2007 Buick Rendezvous 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT451
A-Premium®Part # APCCT451
2002-2007 Buick Rendezvous 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT451
4.4311 Reviews
$305.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Rendezvous: 2002 2003 2004 2005 2006 2007
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
55274, 10340796, 10352471, 10352680
item #1000NUXY
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This item fits the FWD(Front Wheel Drive) vehicle only.
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2004-2005 Buick Rainier 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT132
A-Premium®Part # APCCT132
2004-2005 Buick Rainier 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT132
4.4311 Reviews
$257.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Rainier: 2004 2005
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
15098454, 15155245, 15216000, 55476, 55292, 50365, 19100
item #1000L1EA
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This part is compatible with vehicles with an L6 4.2L and a 113.0-inch wheelbase.
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2006-2007 Buick Rainier 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT440
A-Premium®Part # APCCT440
2006-2007 Buick Rainier 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT440
4.4311 Reviews
$154.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Rainier: 2006 2007
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
54772, 645864, 50483
item #1000NUKL
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
Show less
2012-2016 Buick LaCrosse 1pc Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT535
A-Premium®Part # APCCT535
2012-2016 Buick LaCrosse 1pc Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT535
4.4311 Reviews
$164.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick LaCrosse: 2012 2013 2014 2015 2016
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
item #1012YL10
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2008-2009 Buick LaCrosse 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT690
A-Premium®Part # APCCT690
2008-2009 Buick LaCrosse 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT690
4.4311 Reviews
$328.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Buick LaCrosse: 2008 2009
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
642101, 50531
item #1013A30D
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
Show less
2013-2021 Buick Encore 1pc Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT749
A-Premium®Part # APCCT749
2013-2021 Buick Encore 1pc Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT749
4.4311 Reviews
$266.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Encore: 2013 2014 2015 2016 2017 2018 2019 2020 2021
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
644076, 16777, 50561, 19609, 19420251, 94529683, 95468206
item #1012YXZ1
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
Show less
2013-2021 Buick Encore 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT162
A-Premium®Part # APCCT162
2013-2021 Buick Encore 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT162
4.4311 Reviews
$160.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Encore: 2013 2014 2015 2016 2017 2018 2019 2020 2021
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
13265369, 55578984, 674-854, 16953, 644075
item #1000L5ER
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This part is compatible with vehicles with an L4 1.4L engine.
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2009-2017 Buick Enclave 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT653
A-Premium®Part # APCCT653
2009-2017 Buick Enclave 1pc Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT653
4.4311 Reviews
$137.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Enclave: 2009 2010 2011 2012 2013 2014 2015 2016 2017
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
642044, 16574, 50477
item #1013A4XZ
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
Show less
2012-2015 Buick Verano 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT035
A-Premium®Part # APCCT035
2012-2015 Buick Verano 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT035
4.4311 Reviews
$141.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Verano: 2012 2013 2014 2015
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
22794842, 16776, 19612
item #1000L1XY
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This item only fits the vehicle with L4 2.4L, not for V6 3.0L.
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2013-2021 Buick Encore 1pc Catalytic Converter Front Fit Federal Emissions Aisin CCTGM-00654
AisinPart # CCTGM-00654
2013-2021 Buick Encore 1pc Catalytic Converter Front Fit Federal Emissions Aisin CCTGM-00654
4.4311 Reviews
$269.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Encore: 2013 2014 2015 2016 2017 2018 2019 2020 2021
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
13265369, 55578984, 55569310, 55579322
ConditionNew
item #1018G778
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2011-2015 Buick Regal 1pc Catalytic Converter Front Fit Federal Emissions Aisin CCTGM-00100
AisinPart # CCTGM-00100
2011-2015 Buick Regal 1pc Catalytic Converter Front Fit Federal Emissions Aisin CCTGM-00100
4.4311 Reviews
$269.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Regal: 2011 2012 2013 2014 2015
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
22794842
ConditionNew
item #1018G2W9
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2005-2009 Buick Allure 1pc Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT439
A-Premium®Part # APCCT439
2005-2009 Buick Allure 1pc Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT439
4.4311 Reviews
$165.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Allure: 2005 2006 2007 2008 2009
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
54752, 642278, 50358, 15861400, 15861401, 15861402
item #10055LTR
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
Show less
2011-2015 Buick Regal 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT035
A-Premium®Part # APCCT035
2011-2015 Buick Regal 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT035
4.4311 Reviews
$141.99
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Regal: 2011 2012 2013 2014 2015
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
22794842, 16776, 19612
item #1000L5CG
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This item only fits the vehicle with L4 2.4L, not for V6 3.0L.
Show less
2006-2008 Buick Lucerne 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT423
A-Premium®Part # APCCT423
2006-2008 Buick Lucerne 1pc Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT423
4.4311 Reviews
$203.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Fits Buick Lucerne: 2006 2007 2008
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
52507, 15786790, 15921944, 15921945
item #10055QXE
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This item fits the model with the V6 3.8L engine only.
Show less
Page 4 of 13

A catalytic converter, often referred to as a "cat," is an essential component of your engine's exhaust system. This device uses catalysts to transform harmful chemicals in the exhaust gases.

What are the signs of a bad catalytic converter?

  • Check engine light
    The dashboard warning light may illuminate, indicating potential issues.
  • Decreased engine performance
    Noticeable loss of power, acceleration, or overall engine performance.
  • Poor fuel economy
    A significant drop in fuel efficiency can occur as the converter fails.
  • Excessive exhaust emissions
    Increased emissions, including a strong sulfur or rotten egg smell.
  • Rattling noises
    Unusual rattling sounds from the exhaust system, indicating internal damage.
  • Overheating
    The engine may run hotter than normal due to restricted exhaust flow.
  • Failed emissions test
    Inability to pass emissions testing due to high pollution levels.

Shop for aftermarket catalytic converters on A-Premium.com

Premium.com offers a wide range of aftermarket catalytic converters for your vehicle. Refine your search by selecting from various dimensions, inlet types, and tube materials. A-Premium team is dedicated to helping you find a compatible catalytic converter for your car. Every item in our catalog is carefully selected by our team of experts, ensuring they undergo rigorous quality checks to endure the demanding conditions of your exhaust system. Shop now to find the best deal on your new catalytic converter!