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Catalytic Converter

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Front Passenger Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Front Left Driver Side, Fit Federal Emissions, A-Premium APCCT528
$143.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641212, 16344
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Front Left Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Front Left Driver Side, Fit Federal Emissions, A-Premium APCCT753
$190.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionFront Left Driver Side
ColorNatural
Part interchange
641133, 679-509, 40445, 18045
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AP Emissions 608204 Catalytic Converter
AP Emissions
AP Emissions 608204 Catalytic Converter
$165.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Part interchange
608204
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AP Emissions 911118 Catalytic Converter, Front Right Passenger Side
AP Emissions
AP Emissions 911118 Catalytic Converter, Front Right Passenger Side
$692.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
911118
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AP Emissions 912005R Catalytic Converter
AP Emissions
AP Emissions 912005R Catalytic Converter
$344.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI QX4
Item LocatedUnited States
Quantity1
Part interchange
912005R
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AP Emissions 912009 Catalytic Converter
AP Emissions
AP Emissions 912009 Catalytic Converter
$356.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Part interchange
912009
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AP Emissions 911015 Catalytic Converter
AP Emissions
AP Emissions 911015 Catalytic Converter
$714.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Part interchange
911015
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AP Emissions 641212 Catalytic Converter, Front Right Passenger Side
AP Emissions
AP Emissions 641212 Catalytic Converter, Front Right Passenger Side
$348.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
641212
Show less
AP Emissions 641133 Catalytic Converter
AP Emissions
AP Emissions 641133 Catalytic Converter
$341.99
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 QX4
Item LocatedUnited States
Quantity1
Part interchange
641133
Show less
AP Emissions 911016 Catalytic Converter
AP Emissions
AP Emissions 911016 Catalytic Converter
$671.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI QX4
Item LocatedUnited States
Quantity1
Part interchange
911016
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Eastern Catalytic 83164 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 83164 Catalytic Converter
$172.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI QX4
Item LocatedUnited States
Quantity1
Part interchange
83164
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Eastern Catalytic 40443 Catalytic Converter, Rear Left Driver Side
Eastern Catalytic
Eastern Catalytic 40443 Catalytic Converter, Rear Left Driver Side
$329.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionRear Left
Part interchange
40443
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Eastern Catalytic 40444 Catalytic Converter, Rear Right Passenger Side
Eastern Catalytic
Eastern Catalytic 40444 Catalytic Converter, Rear Right Passenger Side
$284.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionRear Right
Part interchange
40444
Show less
Eastern Catalytic 40445 Catalytic Converter, Front Left Driver Side
Eastern Catalytic
Eastern Catalytic 40445 Catalytic Converter, Front Left Driver Side
$357.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionFront Left
Part interchange
40445
Show less
Eastern Catalytic 40446 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 40446 Catalytic Converter
$366.99
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 QX4
Item LocatedUnited States
Quantity1
Part interchange
40446
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Eastern Catalytic 40268 Catalytic Converter, Front Right Passenger Side
Eastern Catalytic
Eastern Catalytic 40268 Catalytic Converter, Front Right Passenger Side
$400.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
40268
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MagnaFlow 447198 Catalytic Converter, Front Right Passenger Side
MagnaFlow
MagnaFlow 447198 Catalytic Converter, Front Right Passenger Side
$823.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionFront Right
Part interchange
447198, B08A0-4W100, B08A0-4W10A, B08A0-5W500
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Catalytic Converter - Walker 15034
Walker
Walker 15034 Catalytic Converter, Exhaust
$167.99
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 QX4
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15034, SC207, 602507, 6007, 602007, 70430, SC217, 6507
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Catalytic Converter - Walker 15039
Walker
Walker 15039 Catalytic Converter, Exhaust
$150.99
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 QX4
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15039, 602207, 94109, 83167, 6907, 93167, 70330, 94009, 
...View more
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Catalytic Converter - Walker 15104
Walker
Walker 15104 Catalytic Converter, Exhaust
$269.99
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: INFINITI QX4
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15104, 641211, 92624, 82624
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!