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GMC PartsGMC Sierra 2500 HD PartsCatalytic Converter

GMC Sierra 2500 HD Catalytic Converter

Keeping your Sierra 2500 HD in top shape is your top priority.

Select Your VehicleIt's not all the time that you discover you need a replacement Catalytic Converter to repair your vehicle. GMC car, truck, or SUV enthusiasts have come to expect a certain level of dependability when driving their Sierra 2500 HD around town. Car aficionados know that strong looks is built into each GMC, and understand that only the highest quality repair Sierra 2500 HD parts will suffice when repairs are needed. While it may not be difficult to find replacement parts for GMC vehicles, these days the necessity for nothing but the absolute best are required to repair your automobile.

Why Catalytic Converter replacement is so important.

Reducing harmful hydrocarbons and noxious gases that come from your car or truck depends on the quality and performance of the parts you use. Your GMC Sierra 2500 HD catalytic converter has been installed thanks to a federal mandate that is decades old. Inside every catalytic converter are cells made from platinum and/or rhodium arranged in a honeycomb pattern that turn the carbon monoxide and hydrocarbons that your GMC Sierra 2500 HD produces into harmless molecules of carbon dioxide, oxygen, and some water. This process revolutionized automakers' ability to improve air quality, which is why every vehicle made today has a catalytic converter.

We carry what you are looking for.

When your GMC needs a top quality replacement Catalytic Converter, there's no need to trust any store other than the authority, Car Parts Discount. Make all your future car parts purchases at carpartsdiscount.com and realize incredible savings on all your upcoming repairs. Bring your Sierra 2500 HD back to life with the best repair parts from the experts at Car Parts Discount. GMC Sierra 2500 HD Catalytic Converter parts for 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001 vehicles are available here... just click your year to find them.

Info: Select your make and model in the red title bar above so we can show the parts you need.
GMC Sierra 2500 HD Catalytic Converter, OEM: 99209HM
2001-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 99209HM
Add for Price,   NEW ITEM
OEM: 99209HM, Item: 1256709
  Only 1 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right, Left, Rear

GMC Sierra 2500 HD Catalytic Converter, OEM: 99109HM
2004 GMC Sierra 2500 HD Magnaflow Catalytic Converter 99109HM
Add for Price, Save 6%   NEW ITEM
OEM: 99109HM, Item: 1411087
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 99009HM
2001-2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 99009HM
Add for Price, Save 10%   NEW ITEM
OEM: 99009HM, Item: 1256391
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 51109
2004 GMC Sierra 2500 HD Magnaflow Catalytic Converter 51109
Add for Price, Save 20%   NEW ITEM
OEM: 51109, Item: 1411086
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 51209
2001-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 51209
Add for Price, Save 10%   NEW ITEM
OEM: 51209, Item: 1258620
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

GMC Sierra 2500 HD Catalytic Converter, OEM: 51009
2001-2002, 2007-2009 GMC Sierra 2500 HD Magnaflow Catalytic Converter 51009
Add for Price,   NEW ITEM
OEM: 51009, Item: 1257262
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

GMC Sierra 2500 HD Universal Catalytic Converter, OEM: 93238Walker
2002 GMC Sierra 2500 HD Walker Universal Catalytic Converter 93238
89.75, Save 39%   NEW ITEM
OEM: 93238, Item: 358370
  In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Universal Catalytic Converter, OEM: 93239Walker
2001-2010 GMC Sierra 2500 HD Walker Universal Catalytic Converter 93239
93.75, Save 39%  
OEM: 93239, Item: 358371
  In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right, Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 447209
2002-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 447209
Add for Price, Save 20%   NEW ITEM
OEM: 447209, Item: 1257715
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear, Rear Left, Rear Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 445009
2004 GMC Sierra 2500 HD Magnaflow Catalytic Converter 445009
Add for Price, Save 8%   NEW ITEM
OEM: 445009, Item: 1226564
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 910005RFlowmaster
2002, 2004 GMC Sierra 2500 HD Flowmaster Catalytic Converter 910005R
147.35, Save 39%   NEW ITEM
OEM: 910005R, Item: 1444646
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

GMC Sierra 2500 HD Catalytic Converter, OEM: 912005Flowmaster
2002-2003 GMC Sierra 2500 HD Flowmaster Catalytic Converter 912005
147.35, Save 39%   NEW ITEM
OEM: 912005, Item: 1444643
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 912006Flowmaster
2002-2003 GMC Sierra 2500 HD Flowmaster Catalytic Converter 912006
147.35, Save 39%   NEW ITEM
OEM: 912006, Item: 1444644
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 447109
2002-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 447109
Add for Price, Save 20%   NEW ITEM
OEM: 447109, Item: 1257687
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front, Front Left, Front Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 458006
2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 458006
Add for Price, Save 20%   NEW ITEM
OEM: 458006, Item: 1257976
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front Left, Front Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 459006
2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 459006
Add for Price, Save 20%   NEW ITEM
OEM: 459006, Item: 1256669
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear Left, Rear Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 23781
2001-2007 GMC Sierra 2500 HD Magnaflow Catalytic Converter 23781
Add for Price, Save 21%   NEW ITEM
OEM: 23781, Item: 1300702
  Only 4 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 60021
2001-2004, 2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 60021
Add for Price, Save 20%   NEW ITEM
OEM: 60021, Item: 1445219
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 079-5248/0795248Bosal
2001-2006 GMC Sierra 2500 HD Bosal Catalytic Converter 079-5248
261.95, Save 39%   NEW ITEM
OEM: 079-5248, Item: 1244343
  Only 3 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 60120
2001-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 60120
Add for Price, Save 20%   NEW ITEM
OEM: 60120, Item: 1258864
  Only 8 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 49642
2001-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 49642
Add for Price, Save 21%   NEW ITEM
OEM: 49642, Item: 1256234
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 49006
2001-2007 GMC Sierra 2500 HD Magnaflow Catalytic Converter 49006
Add for Price, Save 21%   NEW ITEM
OEM: 49006, Item: 1300708
  Only 7 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right, Rear Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 60121
2001-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 60121
Add for Price, Save 20%   NEW ITEM
OEM: 60121, Item: 1257164
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 93492
2001-2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 93492
Add for Price, Save 21%   NEW ITEM
OEM: 93492, Item: 1258917
  Only 5 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 24457
2001-2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 24457
Add for Price, Save 21%   NEW ITEM
OEM: 24457, Item: 1258284
  Only 7 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 93622
2001-2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 93622
Add for Price, Save 21%   NEW ITEM
OEM: 93622, Item: 1258919
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 53536Walker
2001-2006 GMC Sierra 2500 HD Walker Catalytic Converter 53536
317.15, Save 39%   NEW ITEM
OEM: 53536, Item: 358069
  Only 2 left In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 545009
2007-2010 GMC Sierra 2500 HD Magnaflow Catalytic Converter 545009
Add for Price, Save 20%   NEW ITEM
OEM: 545009, Item: 1411119
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 49647
2001-2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 49647
Add for Price, Save 21%   NEW ITEM
OEM: 49647, Item: 1256235
  Only 1 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 53538Walker
2001-2006 GMC Sierra 2500 HD Walker Catalytic Converter 53538
362.55, Save 39%   NEW ITEM
OEM: 53538, Item: 358070
  Only 3 left In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 93623
2001-2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 93623
Add for Price, Save 21%   NEW ITEM
OEM: 93623, Item: 1258920
  Only 2 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 55557Walker
2003-2007 GMC Sierra 2500 HD Walker Catalytic Converter 55557
374.35, Save 39%   NEW ITEM
OEM: 55557, Item: 358278
  Only 9 left In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 53726Walker
2001-2006 GMC Sierra 2500 HD Walker Catalytic Converter 53726
377.65, Save 39%   NEW ITEM
OEM: 53726, Item: 409641
  Only 8 left In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 50423Eastern Catalytic
2003-2006 GMC Sierra 2500 HD Eastern Catalytic Catalytic Converter 50423
390.65, Save 39%   NEW ITEM
OEM: 50423, Item: 1005332
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 49667
2001-2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 49667
Add for Price, Save 21%   NEW ITEM
OEM: 49667, Item: 1418853
  Only 1 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 49668
2001-2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 49668
Add for Price, Save 21%   NEW ITEM
OEM: 49668, Item: 1256237
  Only 4 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Walker
2011-2016 GMC Sierra 2500 HD Walker Catalytic Converter 50571
398.75, Save 39%   NEW ITEM
OEM: 50571, Item: 1471323
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 458067
2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 458067
Add for Price, Save 20%   NEW ITEM
OEM: 458067, Item: 1257991
  Only 2 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 54542Walker
2001-2004, 2006 GMC Sierra 2500 HD Walker Catalytic Converter 54542
413.75, Save 39%   NEW ITEM
OEM: 54542, Item: 1351568
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 447282
2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 447282
Add for Price, Save 20%   NEW ITEM
OEM: 447282, Item: 1257762
  Only 3 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 53737Walker
2001-2010 GMC Sierra 2500 HD Walker Catalytic Converter 53737
432.15, Save 39%   NEW ITEM
OEM: 53737, Item: 463225
  Only 5 left In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 447261
2002 GMC Sierra 2500 HD Magnaflow Catalytic Converter 447261
Add for Price, Save 23%   NEW ITEM
OEM: 447261, Item: 1226689
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Walker
2012-2016 GMC Sierra 2500 HD Walker Catalytic Converter 50572
473.45, Save 39%   NEW ITEM
OEM: 50572, Item: 1471324
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 447283
2002-2003, 2005-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 447283
Add for Price, Save 20%   NEW ITEM
OEM: 447283, Item: 1257763
  Only 1 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 52113
2013-2014 GMC Sierra 2500 HD Magnaflow Catalytic Converter 52113
Add for Price, Save 20%   NEW ITEM
OEM: 52113, Item: 1431224
  Only 3 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 447270
2002-2003, 2005-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 447270
Add for Price, Save 23%   NEW ITEM
OEM: 447270, Item: 1450426
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD EPA Ultra Direct Fit Converter, OEM: 50566Walker
2007-2010 GMC Sierra 2500 HD Walker EPA Ultra Direct Fit Converter 50566
506.95, Save 39%   NEW ITEM
OEM: 50566, Item: 559389
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 60502
2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 60502
Add for Price, Save 20%   NEW ITEM
OEM: 60502, Item: 1421642
  Only 9 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 60501
2001-2005 GMC Sierra 2500 HD Magnaflow Catalytic Converter 60501
Add for Price, Save 20%   NEW ITEM
OEM: 60501, Item: 1258865
  Only 3 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter and Pipe Assembly, OEM: GM20206DEC
2007-2009 GMC Sierra 2500 HD DEC Catalytic Converter and Pipe Assembly GM20206
540.65, Save 39%   NEW ITEM
OEM: GM20206, Item: 1307117
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 51949
2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 51949
Add for Price, Save 20%   NEW ITEM
OEM: 51949, Item: 1258843
  Only 5 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 49644
2007-2009 GMC Sierra 2500 HD Magnaflow Catalytic Converter 49644
Add for Price, Save 20%   NEW ITEM
OEM: 49644, Item: 1257243
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Diesel Oxidation Catalyst, OEM: 60504
2007-2010 GMC Sierra 2500 HD Magnaflow Diesel Oxidation Catalyst 60504
Add for Price, Save 20%   NEW ITEM
OEM: 60504, Item: 1410994
  Only 4 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 51812
2011-2013 GMC Sierra 2500 HD Magnaflow Catalytic Converter 51812
Add for Price, Save 20%   NEW ITEM
OEM: 51812, Item: 1419575
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Diesel Particulate Filter, OEM: 6D-18002/6D18002Cardone
2007-2009 GMC Sierra 2500 HD Cardone Diesel Particulate Filter 6D-18002
1114.85, Save 39%, Core: $ 224.80   NEW ITEM
OEM: 6D-18002, Item: 921999
  Only 2 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Dorman
2007-2009 GMC Sierra 2500 HD Dorman Diesel Particulate Filter 674-1004
Add for Price, Save 30%   NEW ITEM
OEM: 674-1004, Item: 1069893
  Only 3 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 2500 HD Catalytic Converter, OEM: 93479
2001-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 93479
Add for Price, Save 19%   NO STOCK
OEM: 93479, Item: 1258915
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

GMC Sierra 2500 HD Catalytic Converter, OEM: 93480
2001-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 93480
Add for Price, Save 19%   NO STOCK
OEM: 93480, Item: 1258916
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 49643
2001-2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 49643
Add for Price, Save 19%   NO STOCK
OEM: 49643, Item: 1256031
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

GMC Sierra 2500 HD Catalytic Converter, OEM: 458063
2006 GMC Sierra 2500 HD Magnaflow Catalytic Converter 458063
Add for Price, Save 19%   NO STOCK
OEM: 458063, Item: 1256791
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right