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Infiniti Catalytic Converter

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Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$211.74
Vehicle Fitment
  • 2004 - 2010 Infiniti QX56 Base 8 Cyl 5.6L
Product Details
Location : Front, Driver SideNotes : Manifold ConverterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40637, 2502C, 753505, 17122, 49356, 50380, 674-844, 16478Dimensions : 29 in. Overall LengthInlet Type : Single (8-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$235.26
Vehicle Fitment
  • 2004 - 2010 Infiniti QX56 Base 8 Cyl 5.6L
Product Details
Location : Front, Passenger SideNotes : Manifold ConverterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40638, 2502A, 753506, 17123, 674-843, 49357, 50381, 16479Dimensions : 29 in. Overall LengthInlet Type : Single (8-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Rear, Passenger Side
Vehicle Info Required to Guarantee Fit
$126.31
Vehicle Fitment
  • 2004 - 2010 Infiniti QX56 Base 8 Cyl 5.6L
Product Details
Location : Rear, Passenger SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40640Inlet Type : Single (2-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Rear, Driver and Passenger Side
Vehicle Info Required to Guarantee Fit
$228.29
Product Details
Location : Rear, Driver And Passenger SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : KitTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40639, 40640, 40639, 2502D, 17126Inlet Type : Single (2-bolt welded flange)Outlet Type : Single (2-bolt welded flange)Warranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front and Rear, Passenger Side
Vehicle Info Required to Guarantee Fit
$343.49
Product Details
Location : Front And Rear, Passenger SideNotes : Manifold ConverterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40638, 40640, 40638, 2502A, 753506, 17123, 674-843, 49357, 50381, 16479Dimensions : 29 in. Overall LengthInlet Type : Front - Single (8-bolt welded flange); Rear - Single (2-bolt welded flange)Outlet Type : Single (2-bolt welded flange)Oxygen Sensor Ports : 1Warranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Rear, Driver Side
Vehicle Info Required to Guarantee Fit
$114.00
Vehicle Fitment
  • 2004 - 2010 Infiniti QX56 Base 8 Cyl 5.6L
Product Details
Location : Rear, Driver SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40639, 2502D, 17126Dimensions : 29.25 in. Overall LengthInlet Type : Single (2-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front and Rear, Driver Side
Vehicle Info Required to Guarantee Fit
$309.45
Product Details
Location : Front And Rear, Driver SideNotes : Manifold ConverterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40637, 40639, 40637, 2502C, 753505, 17122, 49356, 50380, 674-844, 16478, 40639, 2502D, 17126Inlet Type : Front - Single (8-bolt welded flange); Rear - Single (2-bolt welded flange)Outlet Type : Single (2-bolt welded flange)Oxygen Sensor Ports : 1Warranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front, Driver Side
Vehicle Info Required to Guarantee Fit
$106.49
Vehicle Fitment
  • 1997 - 2000 Infiniti QX4 Base 6 Cyl 3.3L
  • 2001 - 2003 Infiniti QX4 Base 6 Cyl 3.5L
Product Details
Location : Front, Driver SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40445, 1015, 099-1428, 18045, 16343, 49269, 49320, 50211, 50831, 16113Inlet Type : Single (6-bolt welded flange) InletOutlet Type : Single (3-bolt welded flange) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front, Driver and Passenger Side
Vehicle Info Required to Guarantee Fit
$210.76
Product Details
Location : Front, Driver And Passenger SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Set of 2Tube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40445, 40268, 40445, 1015, 099-1428, 18045, 16343, 49269, 49320, 50211, 50831, 16113, 18374, 2598, 1016, 099-1427Inlet Type : Single (6-bolt welded flange) InletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Driver Side
Vehicle Info Required to Guarantee Fit
$205.54
Vehicle Fitment
  • 2003 - 2007 Infiniti G35 Base 6 Cyl 3.5L
  • 2003 - 2008 Infiniti FX35 Base 6 Cyl 3.5L
  • 2004 - 2006 Infiniti G35 X 6 Cyl 3.5L
  • 2006 - 2007 Infiniti M35 Sport 6 Cyl 3.5L
  • 2006 - 2008 Infiniti M35 Base 6 Cyl 3.5L
  • 2006 - 2008 Infiniti M35 X 6 Cyl 3.5L
  • 2007 Infiniti G35 Sport 6 Cyl 3.5L Coupe
Product Details
Location : Driver SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40334, 17115, 2517D, 4193, 096-1440Dimensions : 20 in. Overall LengthInlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Passenger Side
Vehicle Info Required to Guarantee Fit
$205.54
Vehicle Fitment
  • 2003 - 2007 Infiniti G35 Base 6 Cyl 3.5L
  • 2003 - 2008 Infiniti FX35 Base 6 Cyl 3.5L
  • 2004 - 2006 Infiniti G35 X 6 Cyl 3.5L
  • 2006 - 2007 Infiniti M35 Sport 6 Cyl 3.5L
  • 2006 - 2008 Infiniti M35 Base 6 Cyl 3.5L
  • 2006 - 2008 Infiniti M35 X 6 Cyl 3.5L
  • 2007 Infiniti G35 Sport 6 Cyl 3.5L Coupe
Product Details
Location : Passenger SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40333, 17116, 2517P, 4192, 096-1439Dimensions : 20 in. Overall LengthInlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front and Rear, Driver and Passenger Side
Vehicle Info Required to Guarantee Fit
$652.94
Vehicle Fitment
  • 2004 - 2010 Infiniti QX56 Base 8 Cyl 5.6L
Product Details
Location : Front And Rear, Driver And Passenger SideNotes : Manifold ConverterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Set of 4Tube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40637, 40638, 40637, 2502C, 753505, 17122, 49356, 50380, 674-844, 16478, 40638, 2502A, 753506, 17123, 674-843, 49357, 50381, 16479Inlet Type : Front - Single (8-bolt welded flange); Rear - Single (2-bolt welded flange)Outlet Type : Single (2-bolt welded flange)Oxygen Sensor Ports : 1Warranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front, Passenger Side
Vehicle Info Required to Guarantee Fit
$136.74
Vehicle Fitment
  • 1998 - 2000 Infiniti QX4 All Submodels All Engines
  • 2001 - 2003 Infiniti QX4 Base 6 Cyl 3.5L
Product Details
Location : Front, Passenger SideNotes : Without heat shieldEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40446, 1118, 099-1429, 49321, 50832, 16344Dimensions : 9.5 in. overall lengthInlet Type : Single (6-bolt welded flange) InletOutlet Type : Single (3-bolt welded flange) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Driver and Passenger Side
Vehicle Info Required to Guarantee Fit
$390.53
Vehicle Fitment
  • 2003 - 2007 Infiniti G35 Base 6 Cyl 3.5L
  • 2003 - 2008 Infiniti FX35 Base 6 Cyl 3.5L
  • 2004 - 2006 Infiniti G35 X 6 Cyl 3.5L
  • 2006 - 2007 Infiniti M35 Sport 6 Cyl 3.5L
  • 2006 - 2008 Infiniti M35 Base 6 Cyl 3.5L
  • 2006 - 2008 Infiniti M35 X 6 Cyl 3.5L
  • 2007 Infiniti G35 Sport 6 Cyl 3.5L Coupe
Product Details
Location : Driver And Passenger SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Set of 2Tube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40333, 40334, 17116, 2517P, 4192, 096-1439, 17115, 2517D, 4193, 096-1440Dimensions : 20 in. Overall LengthInlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange)Oxygen Sensor Ports : 1Warranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front, Driver and Passenger Side
Vehicle Info Required to Guarantee Fit
$300.96
Vehicle Fitment
  • 2001 - 2003 Infiniti QX4 Base 6 Cyl 3.5L
Product Details
Location : Front, Driver And Passenger SideNotes : Without heat shieldsEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Set of 2Tube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40445, 40446, 40445, 1015, 099-1428, 18045, 16343, 49269, 49320, 50211, 50831, 16113, 40446, 1118, 099-1429, 49321, 50832, 16344Inlet Type : Single (6-bolt welded flange)Outlet Type : Single (3-bolt welded flange) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$424.65
Vehicle Fitment
  • 2004 - 2010 Infiniti QX56 Base 8 Cyl 5.6L
Product Details
Location : Front, Driver And Passenger SideNotes : Manifold ConverterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : KitTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40637, 40638, 40637, 2502C, 753505, 17122, 49356, 50380, 674-844, 16478, 40638, 2502A, 753506, 17123, 674-843, 49357, 50381, 16479Dimensions : 29 in. Overall LengthInlet Type : Single (8-bolt welded flange)Outlet Type : Single (2-bolt welded flange)Oxygen Sensor Ports : 1Warranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Center
Vehicle Info Required to Guarantee Fit
$181.81
Vehicle Fitment
  • 2000 - 2001 Infiniti I30 Base 6 Cyl 3.0L
  • 2000 - 2001 Infiniti I30 T 6 Cyl 3.0L
Product Details
Location : CenterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40436, 13022, 099-1002, 4014, 24405, 49905, 54750, 2540BDimensions : 38.5 in. Overall LengthInlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (2-bolt welded flange) OutletOxygen Sensor Ports : 2 Sensor PortsWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Firewall Side
Vehicle Info Required to Guarantee Fit
$117.34
Vehicle Fitment
  • 2002 - 2004 Infiniti I35 Base 6 Cyl 3.5L
Product Details
Location : Firewall SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40477Dimensions : 8.5 in. overall lengthInlet Type : Single (4-bolt welded flange) InletOutlet Type : Single (3-bolt welded flange) OutletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Firewall and Radiator Side
Vehicle Info Required to Guarantee Fit
$285.52
Product Details
Location : Firewall And Radiator SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Set of 2Tube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40477, 40476Inlet Type : Single (6-bolt welded flange) InletWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Radiator Side
Vehicle Info Required to Guarantee Fit
$130.02
Vehicle Fitment
  • 1999 - 2001 Infiniti I30 Base 6 Cyl 3.0L
  • 1999 - 2001 Infiniti I30 T 6 Cyl 3.0L
Product Details
Location : Radiator SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40387, 099-1421, 1014, 13025, 16192, 93231, 2558, 51732Dimensions : 13 in. Overall LengthInlet Type : Single (5-bolt welded flange) InletOutlet Type : Single (3-bolt welded flange) OutletOxygen Sensor Ports : 1 Sensor PortWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Center and Radiator Side
Vehicle Info Required to Guarantee Fit
$296.24
Product Details
Location : Center And Radiator SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Set of 2Tube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 40436, 40387, 40436, 13022, 099-1002, 4014, 24405, 49905, 54750, 2540B, 40387, 099-1421, 1014, 13025, 16192, 93231, 2558, 51732Inlet Type : Single (5-bolt welded flange) InletWarranty : 5-year or 50,000-mile limited warranty
Page 1 of 29 | Showing 1 - 15 of 430 results

Infiniti Catalytic Converter Customer Reviews

These 'intake/cat converters' certainly are a savior when compared to Nissan OEM parts, BUT you will need a very savy mechanic to install them. The main consideration is where the intake bolts to the block. The Evan Fischer exhaust pipe is welded to the connection plate. The bolt pattern to the block is so close to the pipe that the 'weld' itself inhibits bolting to the block, you will have to shim out the bolt to attach these. Next where the product connect to the resonator or continuination of the tail pipe there is a small circle of metal from the factory which will have to be cut off. The Evan Fischer product does not fit right up. WITH THAT BEING SAID, THIS PRODUCT IF YOU CAN INSTALL WILL SAVE YOU THOUSANDS OF DOLLARS VERSUS TAKING IT TO A NISSAN DEALER. I have been VERY PLEASED with the result...and love the money saved by using this EvanFischer Exhaust/Cat Converter alternative.
Purchased on Sep 28, 2013
the welds were to big on the head flang could not fit the nuts on the studs ,had to improvise , did not line up properly with the exhaust, had to modify stock exhaust to fit part
Purchased on Oct 05, 2013
I had searched many parts supply sites and Autopartswarehouse beat them all!!! Fast easy and very helpful. I would only ask that they not be so pushy with their ads!
Purchased on Jan 26, 2015

Infiniti Catalytic Converter Articles

The Infiniti catalytic converter is a valuable part of the emission control system of your vehicle, helping to reduce the level of pollution it sends into the air we breathe. The engine produces a variety of chemicals as byproducts of the combustion process that it uses to produce the power that propels your vehicle. Several of these chemicals are quite harmful to humans and animals, and some are contributors to the growing problems of smog and acid rain. The Infiniti catalytic converter is located in the exhaust system of your vehicle to process the exhaust gasses that are produced by the combustion process, sifting out a portion of these chemicals to reduce the amount of toxic fumes that are allowed to flow out of the vehicle tailpipe into the environment. This task is accomplished with a ceramic honeycomb style structure that makes up the interior of the Infiniti catalytic converter, which is coated with catalyst metals. These metals cause a chemical reaction with the molecules of these hazardous chemicals as they make their way through the Infiniti catalytic converter, which causes some of these molecules to burn up and others to remain trapped inside. This significantly reduces the amount of toxins that are allowed to exit the vehicle into the air, reducing air pollution. The Infiniti catalytic converter is an important safeguard, keeping the pollution produced by the millions of vehicles on today's busy roadways to a minimum. We carry a selection of Infiniti catalytic converter replacements in our online catalog at very reasonable prices. Our site is user-friendly and secure to make ordering your Infiniti catalytic converter quick and safe or our toll-free phone line is available for your convenience.

Helpful Automotive Resources

Fact or Fiction: Can Catalytic Converters Catch Fire?
November 07, 2019
Fact or Fiction: Can Catalytic Converters Catch Fire?In the ’70s, stricter emissions standards—enforced by the Environmental Protection Agency (EPA) through the Clean Air Act—prompted car manufacturers to develop a range of technologies that would help build “cleaner” vehicles. The modern catalytic converter, which essentially makes the combustion process cleaner, is considered one of the greatest environmental inventions
Reduced Engine Power Mode: What Does it Really Mean?
June 04, 2019
Reduced Engine Power Mode: What Does it Really Mean?In other words: The Engine Power Reduced message is GM’s way of telling you that your car has entered a fail-safe mode.
Bad Catalytic Converter Symptoms: Signs to Watch Out For
December 29, 2019
Bad Catalytic Converter Symptoms: Signs to Watch Out ForAh, to be young and naive. I let the misfire go for several months and, eventually, it took out my catalytic converters.
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