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GMC PartsGMC Sierra 3500 PartsCatalytic Converter

GMC Sierra 3500 Catalytic Converter

Keeping your Sierra 3500 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 fix your car or truck. The vehicle in your driveway symbolizes the best in class when it comes to all the cars, trucks, and SUVs currently being driven today. While it may not be difficult to buy replacement parts for GMC vehicles, these days only the highest quality are required to maintain your automobile. Auto enthusiasts know that a brand you can trust is built into each GMC, and know that only the best repair Sierra 3500 parts will suffice when your car or truck needs fixing.

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

Getting the most out of your car or truck depends on how well you maintain your engine and exhaust parts. Your GMC Sierra 3500 catalytic converter has been installed thanks to a federal mandate that is decades old. There are a host of precious metals, mostly platinum, in the catalytic converter that turn the carbon monoxide and hydrocarbons that your GMC Sierra 3500 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.

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Ordering new GMC parts from www.carpartsdiscount.com means you are getting the best deal on the absolute greatest original and aftermarket replacement Sierra 3500 parts on the internet. Don't let a Catalytic Converter repair spell the end of your car, truck, or SUV, and don't risk lowering its resale value by using anything but the highest quality replacement parts. Get your Sierra 3500 back on the road with the highest quality new or rebuilt parts from the experts at Car Parts Discount. Need 2006, 2005, 2004, 2003, 2002, 2001 GMC Sierra 3500 Catalytic Converter parts? We've got them right here.

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 3500 Catalytic Converter, OEM: 447209
2001-2006 GMC Sierra 3500 Magnaflow Catalytic Converter 447209
Add for Price, Save 22%   POPULAR
OEM: 447209, Item: 1226665
  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: Rear, Rear Left, Rear Right

GMC Sierra 3500 Catalytic Converter, OEM: 445009
2001-2004 GMC Sierra 3500 Magnaflow Catalytic Converter 445009
Add for Price, Save 10%   NEW ITEM
OEM: 445009, Item: 1226564
  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: Front, Rear, Front Left, Front Right

Flowmaster
2002-2003 GMC Sierra 3500 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

Flowmaster
2002-2003 GMC Sierra 3500 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

Flowmaster
2002-2003 GMC Sierra 3500 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 3500 Catalytic Converter, OEM: 640004Eastern Catalytic
2001-2003 GMC Sierra 3500 Eastern Catalytic Catalytic Converter 640004
159.55, Save 39%   NEW ITEM
OEM: 640004, Item: 1435139
  Only 1 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Front Left, Front Right

GMC Sierra 3500 Catalytic Converter, OEM: 81724Walker
2001-2006 GMC Sierra 3500 Walker Catalytic Converter 81724
168.05, Save 39%   NEW ITEM
OEM: 81724, Item: 1147955
  Only 9 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, Rear Left, Rear Right

GMC Sierra 3500 Catalytic Converter, OEM: 447109
2001-2006 GMC Sierra 3500 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, Front Left, Front Right

GMC Sierra 3500 Catalytic Converter, OEM: 60021
2001-2004, 2006 GMC Sierra 3500 Magnaflow Catalytic Converter 60021
Add for Price, Save 23%   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 3500 EPA Ultra Direct Fit Converter, OEM: 16166Walker
2001 GMC Sierra 3500 Walker EPA Ultra Direct Fit Converter 16166
261.35, Save 39%   NEW ITEM
OEM: 16166, Item: 669256
  Only 4 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 3500 Catalytic Converter, OEM: 60120
2001-2006 GMC Sierra 3500 Magnaflow Catalytic Converter 60120
Add for Price, Save 22%   NEW ITEM
OEM: 60120, Item: 1258864
  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 3500 Catalytic Converter, OEM: 54423Walker
2001 GMC Sierra 3500 Walker Catalytic Converter 54423
292.75, Save 39%   NEW ITEM
OEM: 54423, Item: 358156
  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 3500 Catalytic Converter, OEM: 60121
2001-2006 GMC Sierra 3500 Magnaflow Catalytic Converter 60121
Add for Price, Save 22%   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 3500 EPA Ultra Direct Fit Converter, OEM: 55622Walker
2004-2006 GMC Sierra 3500 Walker EPA Ultra Direct Fit Converter 55622
328.65, Save 39%   NEW ITEM
OEM: 55622, Item: 559452
  Only 6 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 3500 Catalytic Converter, OEM: 49643
2003 GMC Sierra 3500 Magnaflow Catalytic Converter 49643
Add for Price, Save 21%   NEW ITEM
OEM: 49643, Item: 1256031
  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 3500 Catalytic Converter, OEM: 55557Walker
2003-2006 GMC Sierra 3500 Walker Catalytic Converter 55557
374.35, Save 39%   NEW ITEM
OEM: 55557, Item: 358278
  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