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INFINITI QX4 Catalytic Converter Replacement

1
SELECT Year
  1. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (Eastern Catalytic)

    1997-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (Eastern Catalytic)

    Partslink #: 83164

    California Emissions Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)

    $169.76 View part →
  2. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Left (Davico Converters)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Left (Davico Converters)

    Partslink #: 18045

    Not legal for use in California Illegal for installation in NY on vehicles equipped with California emission systems

    $304.35 View part →
  3. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (Magnaflow)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (Magnaflow)

    Partslink #: 99204HM

    with California Emissions System Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required

    $194.00 View part →
  4. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (Magnaflow)

    1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (Magnaflow)

    Partslink #: 50211

    Not legal for sale or installation in California, Colorado or New York.

    $354.00 View part →
  5. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (MagnaFlow Performance Exhaust)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (MagnaFlow Performance Exhaust)

    Partslink #: 99204HM

    Cutting and Welding Required

    $194.00 View part →
  6. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (MagnaFlow Performance Exhaust)

    1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (MagnaFlow Performance Exhaust)

    Partslink #: 50211
    $354.00 View part →
  7. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Original Performance)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Original Performance)

    Partslink #: OPCN3019

    Direct Fit Federal, 47-State Only, Not legal for sale in CA, NY or ME

    $205.80 View part →
  8. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Rear Left (Eastern Catalytic)

    1997-2003 INFINITI QX4 Catalytic Converter - Rear Left (Eastern Catalytic)

    Partslink #: 40443

    Undercar; California Emissions Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)

    $357.08 View part →
  9. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (MagnaFlow Performance Exhaust)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (MagnaFlow Performance Exhaust)

    Partslink #: 51204

    Cutting and Welding Required

    $211.00 View part →
  10. ✓ In Stock 1998-2001 INFINITI QX4 Catalytic Converter - Rear Left (Magnaflow)

    1998-2001 INFINITI QX4 Catalytic Converter - Rear Left (Magnaflow)

    Partslink #: 24748

    with California Emissions System Not legal for sale or installation in California, Colorado or New York.

    $381.00 View part →
  11. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (Magnaflow)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (Magnaflow)

    Partslink #: 51204

    Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required

    $211.00 View part →
  12. ✓ In Stock 1998-2001 INFINITI QX4 Catalytic Converter - Rear Left (MagnaFlow Performance Exhaust)

    1998-2001 INFINITI QX4 Catalytic Converter - Rear Left (MagnaFlow Performance Exhaust)

    Partslink #: 24748

    with California Emissions System

    $381.00 View part →
  13. ✓ In Stock 1997-2000 INFINITI QX4 Catalytic Converter - Front Right (Original Performance)

    1997-2000 INFINITI QX4 Catalytic Converter - Front Right (Original Performance)

    Partslink #: OPCN3030

    Direct Fit Federal, 47-State Only, Not legal for sale in CA, NY or ME

    $233.66 View part →
  14. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (Magnaflow)

    1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (Magnaflow)

    Partslink #: 49320

    Not legal for sale or installation in California, Colorado or New York.

    $385.00 View part →
  15. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Rear Right (Eastern Catalytic)

    1997-2003 INFINITI QX4 Catalytic Converter - Rear Right (Eastern Catalytic)

    Partslink #: 40444

    Undercar; California Emissions Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)

    $311.42 View part →
  16. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (MagnaFlow Performance Exhaust)

    1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (MagnaFlow Performance Exhaust)

    Partslink #: 49320
    $385.00 View part →
  17. ✓ In Stock 1997-2000 INFINITI QX4 Catalytic Converter - Front Right (Dorman)

    1997-2000 INFINITI QX4 Catalytic Converter - Front Right (Dorman)

    Partslink #: 679-503

    CARB Compliant: No

    $321.80 View part →
  18. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (AP Exhaust)

    1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (AP Exhaust)

    Partslink #: 641133

    Direct Fit; Not for sale or use on vehicles licensed in the states of CA, CO, ME, and NY. Restrictions may apply in other states. Check with your state authority for details. Pre-Cat Federal and California Emissions Federal Emissions

    $391.05 View part →
  19. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear Right (MagnaFlow Performance Exhaust)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear Right (MagnaFlow Performance Exhaust)

    Partslink #: 24118

    with California Emissions System

    $357.00 View part →
  20. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Front Left (Eastern Catalytic)

    1997-2003 INFINITI QX4 Catalytic Converter - Front Left (Eastern Catalytic)

    Partslink #: 40445

    Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)

    $395.66 View part →
  21. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear Right (Magnaflow)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear Right (Magnaflow)

    Partslink #: 24118

    with California Emissions System Not legal for sale or installation in California, Colorado or New York.

    $357.00 View part →
  22. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Front Left (Dorman)

    1997-2003 INFINITI QX4 Catalytic Converter - Front Left (Dorman)

    Partslink #: 679-509

    CARB Compliant: No

    $418.28 View part →
  23. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear Right (Magnaflow)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear Right (Magnaflow)

    Partslink #: 49532

    with California Emissions System Not legal for sale or installation in California, Colorado or New York.

    $375.00 View part →
  24. ✓ In Stock 2002-2003 INFINITI QX4 Catalytic Converter - Rear Left (MagnaFlow Performance Exhaust)

    2002-2003 INFINITI QX4 Catalytic Converter - Rear Left (MagnaFlow Performance Exhaust)

    Partslink #: 24417
    $441.00 View part →
  25. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear Right (MagnaFlow Performance Exhaust)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear Right (MagnaFlow Performance Exhaust)

    Partslink #: 49532

    with California Emissions System

    $375.00 View part →
  26. ✓ In Stock 2002-2003 INFINITI QX4 Catalytic Converter - Rear Left (Magnaflow)

    2002-2003 INFINITI QX4 Catalytic Converter - Rear Left (Magnaflow)

    Partslink #: 24417

    Not legal for sale or installation in California, Colorado or New York.

    $441.00 View part →
  27. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Eastern Catalytic)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Eastern Catalytic)

    Partslink #: 40446

    Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)

    $406.44 View part →
  28. ✓ In Stock 2002-2003 INFINITI QX4 Catalytic Converter - Rear Left (MagnaFlow Performance Exhaust)

    2002-2003 INFINITI QX4 Catalytic Converter - Rear Left (MagnaFlow Performance Exhaust)

    Partslink #: 49531
    $463.00 View part →
  29. ✓ In Stock 1997-2000 INFINITI QX4 Catalytic Converter - Front Right (Eastern Catalytic)

    1997-2000 INFINITI QX4 Catalytic Converter - Front Right (Eastern Catalytic)

    Partslink #: 40268

    Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)

    $418.58 View part →
  30. ✓ In Stock 2002-2003 INFINITI QX4 Catalytic Converter - Rear Left (Magnaflow)

    2002-2003 INFINITI QX4 Catalytic Converter - Rear Left (Magnaflow)

    Partslink #: 49531

    Not legal for sale or installation in California, Colorado or New York.

    $463.00 View part →
  31. ✓ In Stock 1997-2000 INFINITI QX4 Catalytic Converter - Front Right or Right (Magnaflow)

    1997-2000 INFINITI QX4 Catalytic Converter - Front Right or Right (Magnaflow)

    Partslink #: 50212

    Not legal for sale or installation in California, Colorado or New York.

    $421.00 View part →
  32. ✓ In Stock 2001-2002 INFINITI QX4 Catalytic Converter - Rear Left (Magnaflow)

    2001-2002 INFINITI QX4 Catalytic Converter - Rear Left (Magnaflow)

    Partslink #: 447227

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A Engine Family Number (EFN) 1NSXT03.5C7A Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $673.00 View part →
  33. ✓ In Stock 1997-2000 INFINITI QX4 Catalytic Converter - Front Right or Right (MagnaFlow Performance Exhaust)

    1997-2000 INFINITI QX4 Catalytic Converter - Front Right or Right (MagnaFlow Performance Exhaust)

    Partslink #: 50212
    $421.00 View part →
  34. ✓ In Stock 2001-2002 INFINITI QX4 Catalytic Converter - Rear Left (MagnaFlow Performance Exhaust)

    2001-2002 INFINITI QX4 Catalytic Converter - Rear Left (MagnaFlow Performance Exhaust)

    Partslink #: 447227

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A Engine Family Number (EFN) 1NSXT03.5C7A

    $673.00 View part →
  35. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Dorman)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Dorman)

    Partslink #: 679-510

    CARB Compliant: No

    $458.97 View part →
  36. ✓ In Stock 1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (AP Exhaust)

    1997-2003 INFINITI QX4 Catalytic Converter - Front Left or Left (AP Exhaust)

    Partslink #: 911015

    91 Series Engine Family Number (EFN) WNSXT03.335A CARB Executive Order D-280-101 ; Direct Fit - CARB Legal Note: In Compliance with CARB Emissions Requirements

    $825.85 View part →
  37. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Magnaflow)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Magnaflow)

    Partslink #: 50832

    Not legal for sale or installation in California, Colorado or New York.

    $480.00 View part →
  38. ✓ In Stock 2001 INFINITI QX4 Catalytic Converter - Front Left (Magnaflow)

    2001 INFINITI QX4 Catalytic Converter - Front Left (Magnaflow)

    Partslink #: 447194

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $1,033.00 View part →
  39. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (MagnaFlow Performance Exhaust)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (MagnaFlow Performance Exhaust)

    Partslink #: 50832
    $480.00 View part →
  40. ✓ In Stock 2001 INFINITI QX4 Catalytic Converter - Front Left (MagnaFlow Performance Exhaust)

    2001 INFINITI QX4 Catalytic Converter - Front Left (MagnaFlow Performance Exhaust)

    Partslink #: 447194

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A

    $1,033.00 View part →
  41. ✓ In Stock 2001-2002 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (Magnaflow)

    2001-2002 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (Magnaflow)

    Partslink #: 447204

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A Engine Family Number (EFN) 1NSXT03.5C7A Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $481.00 View part →
  42. ✓ In Stock 1997 INFINITI QX4 Catalytic Converter - Front Left or Left (Magnaflow)

    1997 INFINITI QX4 Catalytic Converter - Front Left or Left (Magnaflow)

    Partslink #: 4451498

    CARB Executive Order D-193-136 Engine Family Number (EFN) VNS3.328GKEK Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $1,345.00 View part →
  43. ✓ In Stock 2001-2002 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (MagnaFlow Performance Exhaust)

    2001-2002 INFINITI QX4 Catalytic Converter - Rear Left or Rear Right (MagnaFlow Performance Exhaust)

    Partslink #: 447204

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A Engine Family Number (EFN) 1NSXT03.5C7A Cutting and Welding Required

    $481.00 View part →
  44. ✓ In Stock 1997 INFINITI QX4 Catalytic Converter - Front Left or Left (MagnaFlow Performance Exhaust)

    1997 INFINITI QX4 Catalytic Converter - Front Left or Left (MagnaFlow Performance Exhaust)

    Partslink #: 4451498

    CARB Executive Order D-193-136 Engine Family Number (EFN) VNS3.328GKEK

    $1,345.00 View part →
  45. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (MagnaFlow Performance Exhaust)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (MagnaFlow Performance Exhaust)

    Partslink #: 49321
    $504.00 View part →
  46. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Magnaflow)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Magnaflow)

    Partslink #: 49321

    Not legal for sale or installation in California, Colorado or New York.

    $504.00 View part →
  47. ✓ In Stock 2001-2002 INFINITI QX4 Catalytic Converter - Rear Right (Magnaflow)

    2001-2002 INFINITI QX4 Catalytic Converter - Rear Right (Magnaflow)

    Partslink #: 447230

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A Engine Family Number (EFN) 1NSXT03.5C7A Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $508.00 View part →
  48. ✓ In Stock 2001-2002 INFINITI QX4 Catalytic Converter - Rear Right (MagnaFlow Performance Exhaust)

    2001-2002 INFINITI QX4 Catalytic Converter - Rear Right (MagnaFlow Performance Exhaust)

    Partslink #: 447230

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A Engine Family Number (EFN) 1NSXT03.5C7A

    $508.00 View part →
  49. ✓ In Stock 2003 INFINITI QX4 Catalytic Converter - Front Left or Front Right (MagnaFlow Performance Exhaust)

    2003 INFINITI QX4 Catalytic Converter - Front Left or Front Right (MagnaFlow Performance Exhaust)

    Partslink #: 445004

    CARB Executive Order D-193-100 Engine Family Number (EFN) 3NSXT03.5C7A Cutting and Welding Required

    $603.00 View part →
  50. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Walker Exhaust)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (Walker Exhaust)

    Partslink #: 81754

    CARB Executive Order D-182-52 Engine Family Number (EFN) 1NSXT03.5C7A Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Additional Part(s) Needed To Complete Installation: 31397 Includes Front Gasket Direct Fit Type

    $777.82 View part →
  51. ✓ In Stock 2001-2003 INFINITI QX4 Catalytic Converter - Front Right (AP Exhaust)

    2001-2003 INFINITI QX4 Catalytic Converter - Front Right (AP Exhaust)

    Partslink #: 911118

    91 Series Engine Family Number (EFN) 1NSXT03.5C9A CARB Executive Order D-280-101 ; Direct Fit - CARB Legal Note: In Compliance with CARB Emissions Requirements ALL

    $794.18 View part →
  52. ✓ In Stock 2001 INFINITI QX4 Catalytic Converter - Front Right (Magnaflow)

    2001 INFINITI QX4 Catalytic Converter - Front Right (Magnaflow)

    Partslink #: 447198

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $923.00 View part →
  53. ✓ In Stock 2001 INFINITI QX4 Catalytic Converter - Front Right (MagnaFlow Performance Exhaust)

    2001 INFINITI QX4 Catalytic Converter - Front Right (MagnaFlow Performance Exhaust)

    Partslink #: 447198

    CARB Executive Order D-193-103 Engine Family Number (EFN) 1NSXT03.5C9A

    $1,005.00 View part →
  54. ✓ In Stock 1997 INFINITI QX4 Catalytic Converter - Front Right or Right (MagnaFlow Performance Exhaust)

    1997 INFINITI QX4 Catalytic Converter - Front Right or Right (MagnaFlow Performance Exhaust)

    Partslink #: 4451499

    CARB Executive Order D-193-136 Engine Family Number (EFN) VNS3.328GKEK

    $1,446.00 View part →
  55. ✓ In Stock 1997 INFINITI QX4 Catalytic Converter - Front Right or Right (Magnaflow)

    1997 INFINITI QX4 Catalytic Converter - Front Right or Right (Magnaflow)

    Partslink #: 4451499

    CARB Executive Order D-193-136 Engine Family Number (EFN) VNS3.328GKEK Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $1,446.00 View part →
  56. ✓ In Stock 1998-2003 INFINITI QX4 Catalytic Converter - Rear (AP Exhaust)

    1998-2003 INFINITI QX4 Catalytic Converter - Rear (AP Exhaust)

    Partslink #: 912005R

    91 Series Engine Family Number (EFN) WNSXT03.335A CARB Executive Order D-280-101 ; Universal Fit - CARB Legal Note: In Compliance with CARB Emissions Requirements 2.25 in Inlet ID; 2.25 in Outlet ID; Round Body; 16 in OAL

    $346.01 View part →
  57. ✓ In Stock 1998-2002 INFINITI QX4 Catalytic Converter - Front (AP Exhaust)

    1998-2002 INFINITI QX4 Catalytic Converter - Front (AP Exhaust)

    Partslink #: 912009

    91 Series Engine Family Number (EFN) WNSXT03.335A CARB Executive Order D-280-101 ; Universal Fit - CARB Legal Note: In Compliance with CARB Emissions Requirements 2.25 in Inlet ID; 2.25 in Outlet ID; 14 in OAL

    $384.92 View part →

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Catalytic Converter Compatibility for INFINITI QX4

Browse our selection of quality catalytic converter parts designed specifically for your INFINITI QX4. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.

Available Trims

Base

Body Types

Sport Utility

Engine Options

V6 3.3L · V6 3.5L

Transmissions

Automatic

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