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GMC PartsGMC Sierra 1500 HD PartsCatalytic Converter

GMC Sierra 1500 HD Catalytic Converter

Your Sierra 1500 HD is a prized possession.

Select Your VehicleAuto enthusiasts know that strong looks is built into each GMC, and understand that only the best repair Sierra 1500 HD parts will suffice when your car or truck needs fixing. The vehicle in your driveway symbolizes the best in class when it comes to all the cars, trucks, and SUVs in today's marketplace. While it may not be difficult to buy replacement parts for GMC vehicles, these days the necessity for nothing but the highest quality are required to repair your car or truck. Make no mistake, you bought your Sierra 1500 HD because you understood you would be getting horsepower and great value both rolled up into one car, truck, or SUV.

Don't go too long without fixing your Catalytic Converter... here's why.

Getting the most out of your car or truck depends on your use of properly functioning exhaust and emissions parts. Your GMC Sierra 1500 HD catalytic converter is likely the single most effective pollution control device on production vehicles today. There are a host of precious metals, mostly platinum, in the catalytic converter that turn the carbon monoxide and hydrocarbons that your GMC Sierra 1500 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 all the top brands.

Get your Sierra 1500 HD back on the road with the highest quality repair parts from the experts at Car Parts Discount. Given all the trouble that can be involved with installing a part to fix your car or truck, let www.carpartsdiscount.com be the most authoritative website you go to make buying it easy. When your GMC requires a new replacement Catalytic Converter, there's no need to waste time looking anywhere other than the authority, Car Parts Discount. When it comes to GMC Sierra 1500 HD Catalytic Converter parts, you can find them for 2006, 2005, 2003, 2002, 2001 models by clicking the appropriate year below.

Info: Select your make and model in the red title bar above so we can show the parts you need.
Select Your Year
GMC Sierra 1500 HD Catalytic Converter, OEM: 99009HM
2001-2003, 2005-2006 GMC Sierra 1500 HD Magnaflow Catalytic Converter 99009HM
Add for Price, Save 23%   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 1500 HD Catalytic Converter, OEM: 51009
2001-2003, 2005-2006 GMC Sierra 1500 HD Magnaflow Catalytic Converter 51009
Add for Price, Save 22%   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 1500 HD Catalytic Converter, OEM: 447209
2003, 2005-2006 GMC Sierra 1500 HD Magnaflow Catalytic Converter 447209
Add for Price, Save 22%   POPULAR
OEM: 447209, Item: 1226665
  Only 6 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear Left, Rear Right

GMC Sierra 1500 HD Catalytic Converter, OEM: 445009
2001 GMC Sierra 1500 HD Magnaflow Catalytic Converter 445009
Add for Price, Save 10%   NEW ITEM
OEM: 445009, Item: 1226564
  Only 5 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, Right

GMC Sierra 1500 HD Catalytic Converter, OEM: 640004Eastern Catalytic
2001 GMC Sierra 1500 HD Eastern Catalytic Catalytic Converter 640004
159.55, Save 39%   NEW ITEM
OEM: 640004, Item: 1435139
  Only 2 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 Center, Right Center

GMC Sierra 1500 HD Universal Catalytic Converter, OEM: 81724Walker
2001-2003, 2005-2006 GMC Sierra 1500 HD Walker Universal Catalytic Converter 81724
165.45, Save 39%   NEW ITEM
OEM: 81724, Item: 475175
  Only 7 left In Stock, Usually ships within 1 business day

This catalytic converter is compliant with C.A.R.B. rules, restrictions, and specifications. It can be installed on a vehicle in California as well as other municipalities that use this emissions standard. 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 replacement.. (more)

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

Vehicle Install Locations: Front Left, Front Right, Rear Left, Rear Right

GMC Sierra 1500 HD Catalytic Converter, OEM: 81714Walker
2001 GMC Sierra 1500 HD Walker Catalytic Converter 81714
168.05, Save 39%   NEW ITEM
OEM: 81714, Item: 1147951
  Only 6 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, Right

GMC Sierra 1500 HD Catalytic Converter, OEM: 447109
2003, 2005-2006 GMC Sierra 1500 HD Magnaflow Catalytic Converter 447109
Add for Price, Save 21%   NEW ITEM
OEM: 447109, Item: 1226618
  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: Front Left, Front Right

GMC Sierra 1500 HD Catalytic Converter, OEM: 93622
2001-2003, 2005-2006 GMC Sierra 1500 HD Magnaflow Catalytic Converter 93622
Add for Price, Save 19%   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 1500 HD Catalytic Converter, OEM: 079-5167/0795167Bosal
2003, 2005-2006 GMC Sierra 1500 HD Bosal Catalytic Converter 079-5167
303.65, Save 39%   NEW ITEM
OEM: 079-5167, Item: 1244303
  Only 6 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 1500 HD Catalytic Converter, OEM: 079-5166/0795166Bosal
2003, 2005-2006 GMC Sierra 1500 HD Bosal Catalytic Converter 079-5166
311.45, Save 39%   NEW ITEM
OEM: 079-5166, Item: 1244302
  Only 4 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 1500 HD Catalytic Converter, OEM: 50435Eastern Catalytic
2001-2002 GMC Sierra 1500 HD Eastern Catalytic Catalytic Converter 50435
357.05, Save 39%   NEW ITEM
OEM: 50435, Item: 1350118
  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 1500 HD Catalytic Converter, OEM: 93623
2001-2003, 2005-2006 GMC Sierra 1500 HD Magnaflow Catalytic Converter 93623
Add for Price, Save 19%   NEW ITEM
OEM: 93623, Item: 1258920
  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 1500 HD Catalytic Converter, OEM: 55335Walker
2001-2002 GMC Sierra 1500 HD Walker Catalytic Converter 55335
362.05, Save 39%   NEW ITEM
OEM: 55335, Item: 358250
  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 1500 HD Catalytic Converter, OEM: 54899Walker
2002-2003, 2005-2006 GMC Sierra 1500 HD Walker Catalytic Converter 54899
364.45, Save 39%   NEW ITEM
OEM: 54899, Item: 1229454
  Only 8 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 1500 HD Catalytic Converter, OEM: 445648
2001 GMC Sierra 1500 HD Magnaflow Catalytic Converter 445648
Add for Price, Save 19%   NEW ITEM
OEM: 445648, Item: 1257681
  Only 6 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 1500 HD Catalytic Converter, OEM: 49667
2001-2003, 2005-2006 GMC Sierra 1500 HD Magnaflow Catalytic Converter 49667
Add for Price, Save 19%   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 1500 HD Catalytic Converter, OEM: 447283
2005-2006 GMC Sierra 1500 HD Magnaflow Catalytic Converter 447283
Add for Price, Save 19%   NEW ITEM
OEM: 447283, Item: 1257763
  Only 6 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 1500 HD Catalytic Converter, OEM: 447275
2003 GMC Sierra 1500 HD Magnaflow Catalytic Converter 447275
Add for Price, Save 23%   NEW ITEM
OEM: 447275, Item: 1226693
  Only 2 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 1500 HD Catalytic Converter, OEM: 447270
2005-2006 GMC Sierra 1500 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