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Cadillac Catalytic Converter

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Front Catalytic ConverterFront Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT045
4.4267 Reviews
$273.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
18010, 50511, 645988, 15756278
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Front Driver Catalytic Converter with Exhaust Manifold
A-Premium®
1-PC Catalytic Converter Front Left Driver Side Fit Federal Emissions A-Premium APCCT273
4.4267 Reviews
$175.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641476, 674-048, 50549, 674048
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT400
4.4267 Reviews
$334.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
645459, 50450
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front & Rear Fit Federal Emissions A-Premium APCCT396
$381.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront & Rear
ColorNatural
Part interchange
645328, 50239, 50410
Show less
Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT516
$294.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
641636
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: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
641477, 50550
Show less
2 Pcs Left & Right Catalytic Converter
A-Premium®
2-PC Catalytic Converter Driver & Passenger Fit Federal Emissions A-Premium APCCT196
$259.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity2
Installation PositionDriver & Passenger
ColorNatural
Part interchange
16546, 16544, 12622975, 12622977, 25768053, 12622974, 12622978, 25768054
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Front Driver Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Left Driver Side Fit Federal Emissions A-Premium APCCT514
$348.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641635
Show less
2 Pcs Front Left & Right Catalytic Converter
A-Premium®
2-PC Catalytic Converter Front Driver & Passenger Fit Federal Emissions A-Premium APCCT362
$519.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
ColorNatural
Part interchange
644057, 679-541, 50552, 641485, 674-485, 50553
Show less
Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Right Passenger Side Fit Federal Emissions A-Premium APCCT274
$182.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
641485, 674-485, 50553
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT705
$803.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
645155, 50560, 19719, EC50560
Show less
2 Pcs Left & Right Catalytic Converter
A-Premium®
2-PC Catalytic Converter Driver & Passenger Fit Federal Emissions A-Premium APCCT030
$405.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity2
Installation PositionDriver & Passenger
ColorNatural
Part interchange
16685, 25971634, 16684, 25939989
Show less
2 Pcs Front Catalytic Converter
A-Premium®
2-PC Catalytic Converter Front Driver & Passenger Fit Federal Emissions A-Premium APCCT515
$611.99
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: Cadillac
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
ColorNatural
Part interchange
641635, 641636
Show less
Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT662
$332.99
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: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
19420226, 12670571, 12673998, 12679573
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter Exhaust Fit Federal Emissions A-Premium APCCT709
$536.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
645291, 50486, 50453
Show less
Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT703
$772.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
645149, 50595
Show less
Front Left Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Left Driver Side Fit Federal Emissions A-Premium APCCT363
$377.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
644057, 679-541, 50552
Show less
Right Catalytic Converter
A-Premium®
1-PC Catalytic Converter Right Passenger Side Fit Federal Emissions A-Premium APCCT029
$274.99
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: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionRight Passenger Side
ColorNatural
Part interchange
16684, 25939989
Show less
Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter Front Side Fit Federal Emissions A-Premium APCCT175
$424.99
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: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
14621, 50569, 19420102
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: Cadillac
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
645979, 50316
Show less
Page 1 of 11

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!