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Catalytic Converter

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Front Catalytic ConverterFront Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT162
4.4263 Reviews
$160.99
Edit ZIP code
3-year warranty
90 days free return
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
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Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT035
4.4263 Reviews
$172.99
Edit ZIP code
3-year warranty
90 days free return
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
Show less
Front Right Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT535
$185.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
641477, 50550
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT439
$195.99
Edit ZIP code
3-year warranty
90 days free return
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
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Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT139
$294.99
Edit ZIP code
3-year warranty
90 days free return
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
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2 Pcs Front Catalytic Converter
A-Premium®
2-PC Catalytic Converter Front Driver & Passenger Fit Federal Emissions A-Premium APCCT151
$403.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
ColorNatural
Part interchange
674-484, 19510, 674-045, 19520
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Catalytic Converter
A-Premium®
1-PC Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT324
$204.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
642525, 54626, 50322
Show less
2 Pcs Front Catalytic Converter
A-Premium®
2-PC Catalytic Converter Front Driver & Passenger Fit Federal Emissions A-Premium APCCT069
$334.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
ColorNatural
Part interchange
641564, 644143, 16873, 16872
Show less
Front Driver Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Left Driver Side Fit Federal Emissions A-Premium APCCT070
$181.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641564, EC50577, 50577
Show less
Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT631
$202.99
Edit ZIP code
3-year warranty
90 days free return
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
Show less
Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT082
$190.99
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: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
644143, 16872
Show less
A-Premium 1-PC Catalytic Converter, Exhaust, Fit Federal Emissions - APCCT653
A-Premium®
1-PC Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT653
$137.99
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: Buick
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
642044, 16574, 50477
Show less
Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT056
$236.99
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: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
641445, 674-484, 19510
Show less
Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT749
$266.99
Edit ZIP code
3-year warranty
90 days free return
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
Show less
Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT132
$257.99
Edit ZIP code
3-year warranty
90 days free return
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
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT411
$412.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
645979, 50316
Show less
Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter Rear Side Fit Federal Emissions A-Premium APCCT565
$324.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
55744
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT440
$278.99
Edit ZIP code
3-year warranty
90 days free return
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
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT423
$253.99
Quantity Less than 5
Edit ZIP code
3-year warranty
90 days free return
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
Show less
Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT171
$321.99
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: Buick
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
679-531, 19420223, 12660225, 12645922
Show less
Page 1 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!