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Shopping for 2011-Buick-LaCrosse
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2011 Buick LaCrosse Catalytic Converter

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Front Catalytic ConverterFront Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT035
4.4304 Reviews
$141.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
22794842, 16776, 19612
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2 Pcs Front Catalytic Converter
A-Premium®
2-PC Catalytic Converter Front Driver & Passenger Fit Federal Emissions A-Premium APCCT069
$334.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
ColorNatural
Part interchange
641564, 644143, 16873, 16872
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Front Driver Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Left Driver Side Fit Federal Emissions A-Premium APCCT070
$181.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641564, EC50577, 50577
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Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT082
$156.99
Only 1 item left in stock
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
644143, 16872
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AISIN Front Catalytic Converter
Aisin
Front Fit Federal Emissions Aisin CCTGM-00100
$259.99
Quantity Less than 4
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Installation PositionFront
Part interchange
22794842
ConditionNew
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AP Emissions 608706 Catalytic Converter
AP Emissions
AP Emissions 608706 Catalytic Converter
$204.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Part interchange
608706
Show less
AP Emissions 772105 Catalytic Converter
AP Emissions
AP Emissions 772105 Catalytic Converter
$423.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Part interchange
772105
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AP Emissions 771542 Catalytic Converter, Front Right Passenger Side
AP Emissions
AP Emissions 771542 Catalytic Converter, Front Right Passenger Side
$688.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
771542
Show less
AP Emissions 770105 Catalytic Converter
AP Emissions
AP Emissions 770105 Catalytic Converter
$626.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Part interchange
770105
Show less
AP Emissions 2575 Catalytic Converter
AP Emissions
AP Emissions 2575 Catalytic Converter
$131.99
Only 1 item left in stock
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Part interchange
2575
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AP Emissions 644143 Catalytic Converter, Front Right Passenger Side
AP Emissions
AP Emissions 644143 Catalytic Converter, Front Right Passenger Side
$519.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
644143
Show less
AP Emissions 641564 Catalytic Converter, Front Left Driver Side
AP Emissions
AP Emissions 641564 Catalytic Converter, Front Left Driver Side
$519.99
Quantity Less than 3
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
641564
Show less
AP Emissions 608705 Catalytic Converter
AP Emissions
AP Emissions 608705 Catalytic Converter
$196.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Part interchange
608705
Show less
AP Emissions 772794 Catalytic Converter, Center
AP Emissions
AP Emissions 772794 Catalytic Converter, Center
$908.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionCenter
Part interchange
772794
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AP Emissions 771422 Catalytic Converter, Front Left Driver Side
AP Emissions
AP Emissions 771422 Catalytic Converter, Front Left Driver Side
$692.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
771422
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AP Emissions 644102 Catalytic Converter, Rear Side
AP Emissions
AP Emissions 644102 Catalytic Converter, Rear Side
$309.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
644102
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AP Emissions 608266 Catalytic Converter
AP Emissions
AP Emissions 608266 Catalytic Converter
$141.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Part interchange
608266
Show less
Eastern Catalytic 50633 Catalytic Converter, Front Side
Eastern Catalytic
Eastern Catalytic 50633 Catalytic Converter, Front Side
$380.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
50633
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Eastern Catalytic 50577 Catalytic Converter, Front Left Driver Side
Eastern Catalytic
Eastern Catalytic 50577 Catalytic Converter, Front Left Driver Side
$496.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
50577
Show less
Eastern Catalytic 50497 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 50497 Catalytic Converter
$544.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Buick LaCrosse
Item LocatedUnited States
Quantity1
Part interchange
50497
Show less
Page 1 of 2

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!