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Catalytic Converter

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2 Pcs Left & Right Catalytic Converter
A-Premium®
2-PC Catalytic Converter, Driver & Passenger, Fit Federal Emissions, A-Premium APCCT358
$350.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity2
Installation PositionDriver & Passenger
ColorNatural
Part interchange
644029, 41096, 17115, 644030, 41097, 17116
Show less
2 Pcs Front Catalytic Converter
A-Premium®
2-PC Catalytic Converter, Front Driver & Passenger, Fit Federal Emissions, A-Premium APCCT064
4.4251 Reviews
$233.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
ColorNatural
Part interchange
641531, 16702, 40885, 57223, 17203, 674-489, 641532, 16700, 
...View more
Show less
Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Rear Side, Fit Federal Emissions, A-Premium APCCT356
$242.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
643144, 54976, 18539
Show less
2 Pcs Left & Right Catalytic Converter
A-Premium®
2-PC Catalytic Converter, Driver & Passenger, Fit Federal Emissions, A-Premium APCCT332
$381.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity2
Installation PositionDriver & Passenger
ColorNatural
Part interchange
642714, 40334, 18264, 4193, 642713, 40333, 18299, 4192
Show less
3 Pcs Front & Rear Catalytic Converter
A-Premium®
3-PC Catalytic Converter, Front & Rear, Fit Federal Emissions, A-Premium APCCT065
$523.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity3
Installation PositionFront & Rear
ColorNatural
Part interchange
641531, 16702, 40885, 57223, 17203, 674-489, 641532, 16700, 
...View more
Show less
Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Front Right Passenger Side, Fit Federal Emissions, A-Premium APCCT066
4.4251 Reviews
$135.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
641532, 16700, 40886, 57224, 17204
Show less
Rear Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Rear Side, Fit Federal Emissions, A-Premium APCCT129
$218.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
643144, 54976, 18539
Show less
2 Pcs Front Catalytic Converter with Exhaust Manifold
A-Premium®
2-PC Catalytic Converter, Front Driver & Passenger, Fit Federal Emissions, A-Premium APCCT291
$509.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
ColorNatural
Part interchange
641538, 641539
Show less
2 Pcs Front Catalytic Converter with Exhaust Manifold
A-Premium®
2-PC Catalytic Converter, Front Driver & Passenger, Fit Federal Emissions, A-Premium APCCT264
$505.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity2
Installation PositionFront Driver & Passenger
ColorNatural
Part interchange
641353, 16478, 40637, 17122, 641354, 16479, 40638, 674-843, 
...View more
Show less
2 Pcs Front Catalytic Converter
A-Premium®
2-PC Catalytic Converter, Front Side, Fit Federal Emissions, A-Premium APCCT732
$505.99
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: INFINITI
Item LocatedUnited States
Quantity2
Installation PositionFront Side
ColorNatural
Part interchange
641592, 41314, 674-089, 641593, 41315, 674-090
Show less
Right Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Right Passenger Side, Fit Federal Emissions, A-Premium APCCT360
$227.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionRight Passenger Side
ColorNatural
Part interchange
644030, 41097, 17116
Show less
Front Driver Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Front Left Driver Side, Fit Federal Emissions, A-Premium APCCT265
$294.99
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: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641353, 40637
Show less
Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Front Right Passenger Side, Fit Federal Emissions, A-Premium APCCT308
$156.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
642115, 40640, 16489, 17127
Show less
Left Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Left Driver Side, Fit Federal Emissions, A-Premium APCCT656
$256.99
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: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionLeft Driver Side
ColorNatural
Part interchange
644029, 41096, 17115
Show less
Front Driver Catalytic Converter with Exhaust Manifold
A-Premium®
1-PC Catalytic Converter, Front Left Driver Side, Fit Federal Emissions, A-Premium APCCT292
$313.99
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: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641538
Show less
Front Passenger Catalytic Converter with Exhaust Manifold
A-Premium®
1-PC Catalytic Converter, Front Right Passenger Side, Fit Federal Emissions, A-Premium APCCT293
$291.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionFront Right Passenger Side
ColorNatural
Part interchange
641539
Show less
Left Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Left Driver Side, Fit Federal Emissions, A-Premium APCCT359
$287.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionLeft Driver Side
ColorNatural
Part interchange
644029, 41096, 17115
Show less
Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Exhaust, Fit Federal Emissions, A-Premium APCCT337
$219.99
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: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionExhaust
ColorNatural
Part interchange
642793, 18250
Show less
Right Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Right Passenger Side, Fit Federal Emissions, A-Premium APCCT683
$251.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionRight Passenger Side
ColorNatural
Part interchange
674-090, 674090, 674 090, 641593, 41315
Show less
Right Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Right Passenger Side, Fit Federal Emissions, A-Premium APCCT331
$180.99
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: INFINITI
Item LocatedUnited States
Quantity1
Installation PositionRight Passenger Side
ColorNatural
Part interchange
642713, 40333, 18299, 4192
Show less
Page 1 of 9

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!