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GMC Sierra 3500 HD Catalytic Converter Replacement

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  1. ✓ In Stock 2011-2016 GMC Sierra 3500 HD Diesel Particulate Filter (EPA Re-Certified OEM)

    2011-2016 GMC Sierra 3500 HD Diesel Particulate Filter (EPA Re-Certified OEM)

    Partslink #: 335.GM9N15

    This is a particle filter for vehicles with the 6.6L engine.

    Mileage: 182,200 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  2. ✓ In Stock 2011-2016 GMC Sierra 3500 HD Catalytic Converter with Exhaust Filter (EPA Re-Certified OEM)

    2011-2016 GMC Sierra 3500 HD Catalytic Converter with Exhaust Filter (EPA Re-Certified OEM)

    Partslink #: 335-63991

    It is for vehicles with the 6.6L engine and includes the exhaust filter.

    Mileage: 101,100 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  3. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter -  or Left or Right (Walker Exhaust)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter - or Left or Right (Walker Exhaust)

    Partslink #: 93239

    with Federal Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Universal Type Modifications and/or Additional Parts May Be Required for Installation

    $154.13 View part →
  4. ✓ In Stock 2007-2017 GMC Sierra 3500 HD Catalytic Converter - Front or Front Left (Eastern Catalytic)

    2007-2017 GMC Sierra 3500 HD Catalytic Converter - Front or Front Left (Eastern Catalytic)

    Partslink #: 70857

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

    $284.49 View part →
  5. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter - Left or Right (MagnaFlow Performance Exhaust)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter - Left or Right (MagnaFlow Performance Exhaust)

    Partslink #: 51009

    Cutting and Welding Required During Installation

    $252.00 View part →
  6. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter - Left or Right (Magnaflow)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter - Left or Right (Magnaflow)

    Partslink #: 51009

    Cutting and Welding Required During Installation

    $252.00 View part →
  7. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter - Left or Right (MagnaFlow Performance Exhaust)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter - Left or Right (MagnaFlow Performance Exhaust)

    Partslink #: 5451309

    CARB Executive Order D-193-143 Engine Family Number (EFN) 9GMXD06.0396 Cutting and Welding Required

    $1,277.00 View part →
  8. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter - Left or Right (Magnaflow)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter - Left or Right (Magnaflow)

    Partslink #: 5451309

    CARB Executive Order D-193-143 Engine Family Number (EFN) 9GMXD06.0396 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $1,277.00 View part →
  9. ✓ In Stock 2011 GMC Sierra 3500 HD Catalytic Converter - Left or Right (Magnaflow)

    2011 GMC Sierra 3500 HD Catalytic Converter - Left or Right (Magnaflow)

    Partslink #: 5551209

    For Vehicles Originally Equipped with 2 Catalytic Converter(s) CARB Executive Order D-193-144 Engine Family Number (EFN) BGMXT06.0396 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $1,383.00 View part →
  10. ✓ In Stock 2011 GMC Sierra 3500 HD Catalytic Converter - Left or Right (MagnaFlow Performance Exhaust)

    2011 GMC Sierra 3500 HD Catalytic Converter - Left or Right (MagnaFlow Performance Exhaust)

    Partslink #: 5551209

    For Vehicles Originally Equipped with 2 Catalytic Converter(s) CARB Executive Order D-193-144 Engine Family Number (EFN) BGMXT06.0396 Cutting and Welding Required

    $1,383.00 View part →
  11. ✓ In Stock 2012-2014 GMC Sierra 3500 HD Catalytic Converter - Front Left or Front Right (Magnaflow)

    2012-2014 GMC Sierra 3500 HD Catalytic Converter - Front Left or Front Right (Magnaflow)

    Partslink #: 5582409

    CARB Executive Order D-193-148 Engine Family Number (EFN) CGMXT06.0396 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $1,863.00 View part →
  12. ✓ In Stock 2012-2014 GMC Sierra 3500 HD Catalytic Converter - Front Left or Front Right (MagnaFlow Performance Exhaust)

    2012-2014 GMC Sierra 3500 HD Catalytic Converter - Front Left or Front Right (MagnaFlow Performance Exhaust)

    Partslink #: 5582409

    CARB Executive Order D-193-148 Engine Family Number (EFN) CGMXT06.0396 Cutting and Welding Required

    $1,863.00 View part →
  13. ✓ In Stock 2007-2019 GMC Sierra 3500 HD Catalytic Converter -  or Front (Magnaflow)

    2007-2019 GMC Sierra 3500 HD Catalytic Converter - or Front (Magnaflow)

    Partslink #: 51209

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

    $211.00 View part →
  14. ✓ In Stock 2011-2019 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2011-2019 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 51049

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

    $260.00 View part →
  15. ✓ In Stock 2011-2019 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2011-2019 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 51049

    with Dual Catalytic Converters Cutting and Welding Required

    $260.00 View part →
  16. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter (EPA Re-Certified OEM)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter (EPA Re-Certified OEM)

    Partslink #: 335-60430

    This is a recertified original equipment manufacturer (OEM) part. For vehicles with the 6.6L engine.

    Mileage: 183,400 miles

    after $250 core refund
    Sale price: $699.95
    $449.95 View part →
  17. ✓ In Stock 2011-2016 GMC Sierra 3500 HD Catalytic Converter and Diesel Particulate Filter (EPA Re-Certified OEM)

    2011-2016 GMC Sierra 3500 HD Catalytic Converter and Diesel Particulate Filter (EPA Re-Certified OEM)

    Partslink #: 335-63996

    This is a particle filter for vehicles with the 6.6L engine.

    Mileage: 182,200 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  18. ✓ In Stock 2017-2023 GMC Sierra 3500 HD Catalytic Converter - Front (EPA Re-Certified OEM)

    2017-2023 GMC Sierra 3500 HD Catalytic Converter - Front (EPA Re-Certified OEM)

    Partslink #: 335-64205

    This is a recertified original equipment manufacturer (OEM) part. For vehicles with the 6.6L engine.

    Mileage: 25,000 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  19. ✓ In Stock 2020-2022 GMC Sierra 3500 HD Diesel Particulate Filter (EPA Re-Certified OEM)

    2020-2022 GMC Sierra 3500 HD Diesel Particulate Filter (EPA Re-Certified OEM)

    Partslink #: 335-64218

    This is a particle filter for vehicles with the 6.6L engine.

    Mileage: 137,100 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  20. ✓ In Stock 2017-2020 GMC Sierra 3500 HD Catalytic Converter - Lower (EPA Re-Certified OEM)

    2017-2020 GMC Sierra 3500 HD Catalytic Converter - Lower (EPA Re-Certified OEM)

    Partslink #: 335-64232

    This is a recertified original equipment manufacturer (OEM) part. It is a lower catalytic converter for vehicles equipped with the 6.6L engine.

    Mileage: 32,400 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  21. ✓ In Stock 2017-2020 GMC Sierra 3500 HD Catalytic Converter - Front, Lower (EPA Re-Certified OEM)

    2017-2020 GMC Sierra 3500 HD Catalytic Converter - Front, Lower (EPA Re-Certified OEM)

    Partslink #: 335.GM8O18

    This is a recertified original equipment (OEM) catalytic converter for vehicles equipped with the 6.6L engine.

    Mileage: 66,400 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  22. ✓ In Stock 2020-2022 GMC Sierra 3500 HD Diesel Particulate Filter (EPA Re-Certified OEM)

    2020-2022 GMC Sierra 3500 HD Diesel Particulate Filter (EPA Re-Certified OEM)

    Partslink #: 335.GM8O20

    This is a particle filter for vehicles with the 6.6L engine.

    Mileage: 137,100 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  23. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter (EPA Re-Certified OEM)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter (EPA Re-Certified OEM)

    Partslink #: 335.GM8Y10

    This is a recertified original equipment manufacturer (OEM) part. For vehicles with the 6.6L engine.

    Mileage: 183,400 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  24. ✓ In Stock 2011-2016 GMC Sierra 3500 HD Catalytic Converter with Exhaust Filter (EPA Re-Certified OEM)

    2011-2016 GMC Sierra 3500 HD Catalytic Converter with Exhaust Filter (EPA Re-Certified OEM)

    Partslink #: 335.GM8Y12

    For vehicles with the 6.6L engine. Includes the exhaust filter.

    Mileage: 101,100 miles

    after $330 core refund
    Sale price: $779.95
    $449.95 View part →
  25. ✓ In Stock 2020-2022 GMC Sierra 3500 HD Diesel Particulate Filter (EPA Re-Certified OEM)

    2020-2022 GMC Sierra 3500 HD Diesel Particulate Filter (EPA Re-Certified OEM)

    Partslink #: 335.GM8B21

    This is a particle filter for vehicles with the 6.6L engine.

    Mileage: 37,800 miles

    after $330 core refund
    Sale price: $919.95
    $589.95 View part →
  26. ✓ In Stock 2017-2020 GMC Sierra 3500 HD Lower Catalytic Converter - Front, Rear (EPA Re-Certified OEM)

    2017-2020 GMC Sierra 3500 HD Lower Catalytic Converter - Front, Rear (EPA Re-Certified OEM)

    Partslink #: 335.GM9N17

    This is a recertified original equipment manufacturer (OEM) part. For vehicles with the 6.6L engine.

    Mileage: 106,700 miles

    after $330 core refund
    Sale price: $919.95
    $589.95 View part →
  27. ✓ In Stock 2011-2017 GMC Sierra 3500 HD Catalytic Converter (AP Exhaust)

    2011-2017 GMC Sierra 3500 HD Catalytic Converter (AP Exhaust)

    Partslink #: 645184

    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. IMPORTANT: Read TSBs Before Replacing Converter Federal and California Emissions ULEV Emissions with 2 Converter Bodies

    $689.58 View part →
  28. ✓ In Stock 2011-2017 GMC Sierra 3500 HD Catalytic Converter (Eastern Catalytic)

    2011-2017 GMC Sierra 3500 HD Catalytic Converter (Eastern Catalytic)

    Partslink #: 50486

    ULEV Emission; With 2 Converter System; Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)

    $689.58 View part →
  29. ✓ In Stock 2011-2013 GMC Sierra 3500 HD Catalytic Converter - Center (Davico Converters)

    2011-2013 GMC Sierra 3500 HD Catalytic Converter - Center (Davico Converters)

    Partslink #: 19588

    Not legal for use in California Illegal for installation in NY on vehicles equipped with California emission systems Y Pipe w/ 3 Converters

    $752.33 View part →
  30. ✓ In Stock 2011-2017 GMC Sierra 3500 HD Catalytic Converter (Eastern Catalytic)

    2011-2017 GMC Sierra 3500 HD Catalytic Converter (Eastern Catalytic)

    Partslink #: 50574

    With 3 Converter System; Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)

    $811.75 View part →
  31. ✓ In Stock 2011-2019 GMC Sierra 3500 HD Catalytic Converter (AP Exhaust)

    2011-2019 GMC Sierra 3500 HD Catalytic Converter (AP Exhaust)

    Partslink #: 645154

    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. IMPORTANT: Read TSBs Before Replacing Converter Federal and California Emissions with 3 Converter Bodies

    $811.75 View part →
  32. ✓ In Stock 2017-2023 GMC Sierra 3500 HD Catalytic Converter - Upper, Lower (EPA Re-Certified OEM)

    2017-2023 GMC Sierra 3500 HD Catalytic Converter - Upper, Lower (EPA Re-Certified OEM)

    Partslink #: 335.GM9N19

    This part is a recertified original equipment manufacturer (OEM) part. For vehicles with the 6.6L engine. This is an upper catalytic converter.

    Mileage: 86,900 miles

    after $330 core refund
    Sale price: $1,220.95
    $890.95 View part →
  33. ✓ In Stock 2011-2019 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2011-2019 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 21-252

    with Dual Catalytic Converters Not legal for sale or installation in California, Colorado or New York.

    $1,010.00 View part →
  34. ✓ In Stock 2011-2019 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2011-2019 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 21-252

    with Dual Catalytic Converters

    $1,010.00 View part →
  35. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 49644
    $1,060.00 View part →
  36. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 49644

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

    $1,060.00 View part →
  37. ✓ In Stock 2012-2014 GMC Sierra 3500 HD Catalytic Converter - Rear (MagnaFlow Performance Exhaust)

    2012-2014 GMC Sierra 3500 HD Catalytic Converter - Rear (MagnaFlow Performance Exhaust)

    Partslink #: 5592309

    CARB Executive Order D-193-148 Engine Family Number (EFN) CGMXT06.0396 Cutting and Welding Required

    $1,284.00 View part →
  38. ✓ In Stock 2012-2014 GMC Sierra 3500 HD Catalytic Converter - Rear (Magnaflow)

    2012-2014 GMC Sierra 3500 HD Catalytic Converter - Rear (Magnaflow)

    Partslink #: 5592309

    CARB Executive Order D-193-148 Engine Family Number (EFN) CGMXT06.0396 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $1,284.00 View part →
  39. ✓ In Stock 2011-2019 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2011-2019 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 51812

    For Vehicles Originally Equipped with 3 Catalytic Converter(s) Not legal for sale or installation in California, Colorado or New York.

    $1,644.00 View part →
  40. ✓ In Stock 2011-2019 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2011-2019 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 51812

    For Vehicles Originally Equipped with 3 Catalytic Converter(s)

    $1,644.00 View part →
  41. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 4551644

    CARB Executive Order D-193-145 Engine Family Number (EFN) 8GMXH06.0584 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $3,729.00 View part →
  42. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 4551644

    CARB Executive Order D-193-145 Engine Family Number (EFN) 8GMXH06.0584

    $3,729.00 View part →
  43. ✓ In Stock 2011-2015 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2011-2015 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 4551252

    For Vehicles Originally Equipped with 2 Catalytic Converter(s) CARB Executive Order D-193-145 Engine Family Number (EFN) BBYTE06.0613 Engine Family Number (EFN) BGMXE06.0584

    $3,862.00 View part →
  44. ✓ In Stock 2011-2015 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2011-2015 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 4551252

    For Vehicles Originally Equipped with 2 Catalytic Converter(s) CARB Executive Order D-193-145 Engine Family Number (EFN) BBYTE06.0613 Engine Family Number (EFN) BGMXE06.0584 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $3,862.00 View part →
  45. ✓ In Stock 2011 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2011 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 5551252

    For Vehicles Originally Equipped with 2 Catalytic Converter(s) CARB Executive Order D-193-144 Engine Family Number (EFN) BGMXT06.0396

    $4,447.00 View part →
  46. ✓ In Stock 2011 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2011 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 5551252

    For Vehicles Originally Equipped with 2 Catalytic Converter(s) CARB Executive Order D-193-144 Engine Family Number (EFN) BGMXT06.0396 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $4,447.00 View part →
  47. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 5451644

    CARB Executive Order D-193-143 Engine Family Number (EFN) 7GMXK06.0389 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $5,341.00 View part →
  48. ✓ In Stock 2007-2010 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2007-2010 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 5451644

    CARB Executive Order D-193-143 Engine Family Number (EFN) 7GMXK06.0389

    $5,341.00 View part →
  49. ✓ In Stock 2012-2014 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    2012-2014 GMC Sierra 3500 HD Catalytic Converter (MagnaFlow Performance Exhaust)

    Partslink #: 5582812

    CARB Executive Order D-193-148 Engine Family Number (EFN) CGMXT06.0396

    $5,944.00 View part →
  50. ✓ In Stock 2012-2014 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    2012-2014 GMC Sierra 3500 HD Catalytic Converter (Magnaflow)

    Partslink #: 5582812

    CARB Executive Order D-193-148 Engine Family Number (EFN) CGMXT06.0396 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)

    $5,944.00 View part →

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Catalytic Converter Compatibility for GMC Sierra 3500 HD

Browse our selection of quality catalytic converter parts designed specifically for your GMC Sierra 3500 HD. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.

Available Trims

AT4 · Base · Denali · Pro · SLE · SLT · WT

Body Types

Cab & Chassis · Crew Cab Pickup · Extended Cab Pickup · Standard Cab Pickup

Engine Options

V8 6.0L · V8 6.6L

Transmissions

Automatic

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