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Cadillac PartsCadillac STS PartsCatalytic Converter

Cadillac STS Catalytic Converter

You enjoy taking care of your STS.

Select Your VehicleIt's not all the time that you discover you need a replacement Catalytic Converter for your automobile. Make no mistake, you didn't buy your STS unless you understood you would be getting long-lasting quality and a trusted brand both rolled up into one automobile. Cadillac car, truck, or SUV enthusiasts have grown accustomed to a certain level of a reputation for strength when driving their STS around town. When your Cadillac STS left the factory, it was destined for a person with discerning taste who wants unique styling in their automobile.

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 Cadillac STS catalytic converter is the result of about a decade of engineering that took place in the 1960s and 70s. Inside every catalytic converter are cells made from platinum and/or rhodium arranged in a honeycomb pattern that change the harmful emissions of your Cadillac STS from carbon monoxide and hydrocarbons to carbon dioxide and water. Thanks to this chemical reaction, automakers could now curb their contribution to air pollution, which is why every vehicle made today has a catalytic converter.

High quality parts, prices that won't break your bank, the best people.

Given all the hassles associated with performing maintenance on your car or truck, let www.carpartsdiscount.com be the most authoritative website you go to make buying it easy. When your Cadillac requires a top quality replacement Catalytic Converter, there's no need to waste time looking anywhere other than the authority, Car Parts Discount. Get your STS back on the road with the best repair parts from the experts at Car Parts Discount. Cadillac STS Catalytic Converter parts for 2011, 2010, 2009, 2008, 2007, 2006, 2005 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.
Cadillac STS Catalytic Converter, OEM: 448004
2005 Cadillac STS Magnaflow Catalytic Converter 448004
Add for Price, Save 16%   NEW ITEM
OEM: 448004, Item: 1226695
  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

Cadillac STS Catalytic Converter, OEM: 16684Walker
2008-2011 Cadillac STS Walker Catalytic Converter 16684
254.75, Save 39%   NEW ITEM
OEM: 16684, Item: 1229334
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Cadillac STS Catalytic Converter, OEM: 079-5238/0795238Bosal
2005-2007 Cadillac STS Bosal Catalytic Converter 079-5238
225.85, Save 39%   NEW ITEM
OEM: 079-5238, Item: 1244339
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Cadillac STS Catalytic Converter, OEM: GM20376PDEC
2005-2007 Cadillac STS DEC Catalytic Converter GM20376P
Add for Price, Save 31%   NEW ITEM
OEM: GM20376P, Item: 467850
  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 DEC directly for.. (more)

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

Vehicle Install Locations: Right

Cadillac STS Catalytic Converter, OEM: GM20376DDEC
2005-2007 Cadillac STS DEC Catalytic Converter GM20376D
Add for Price, Save 31%   NEW ITEM
OEM: GM20376D, Item: 467849
  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 DEC directly for.. (more)

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

Vehicle Install Locations: Left

Cadillac STS Catalytic Converter, OEM: 16685Walker
2008-2011 Cadillac STS Walker Catalytic Converter 16685
254.75, Save 39%   NEW ITEM
OEM: 16685, Item: 1229335
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Cadillac STS Catalytic Converter, OEM: 079-5237/0795237Bosal
2005-2007 Cadillac STS Bosal Catalytic Converter 079-5237
228.35, Save 39%   NEW ITEM
OEM: 079-5237, Item: 1244338
  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: Right

Cadillac STS Catalytic Converter, OEM: 50444Eastern Catalytic
2005-2007 Cadillac STS Eastern Catalytic Catalytic Converter 50444
248.05, Save 39%   NEW ITEM
OEM: 50444, Item: 1005342
  Only 7 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

Cadillac STS Catalytic Converter, OEM: 50443Eastern Catalytic
2005-2007 Cadillac STS Eastern Catalytic Catalytic Converter 50443
255.45, Save 39%   NEW ITEM
OEM: 50443, Item: 1005341
  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

Cadillac STS Catalytic Converter, OEM: 82815Walker
2006-2011 Cadillac STS Walker Catalytic Converter 82815
179.45, Save 39%   NEW ITEM
OEM: 82815, Item: 1230702
  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, Right

Cadillac STS Catalytic Converter, OEM: 940334Flowmaster
2005-2006 Cadillac STS Flowmaster Catalytic Converter 940334
185.75, Save 39%   NEW ITEM
OEM: 940334, Item: 1444645
  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

Cadillac STS Catalytic Converter, OEM: 2014619Flowmaster
2005-2007 Cadillac STS Flowmaster Catalytic Converter 2014619
275.25, Save 39%   NEW ITEM
OEM: 2014619, Item: 1485744
  Only 5 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

Cadillac STS Catalytic Converter, OEM: 2014618Flowmaster
2005-2007 Cadillac STS Flowmaster Catalytic Converter 2014618
287.95, Save 39%   NEW ITEM
OEM: 2014618, Item: 1485592
  Only 2 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: Right

Cadillac STS Catalytic Converter, OEM: 51205
2008-2009 Cadillac STS Magnaflow Catalytic Converter 51205
Add for Price, Save 11%   NEW ITEM
OEM: 51205, Item: 1256703
  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

Cadillac STS Catalytic Converter, OEM: 24232
2005-2007 Cadillac STS Magnaflow Catalytic Converter 24232
Add for Price, Save 22%   NEW ITEM
OEM: 24232, Item: 1258234
  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

Cadillac STS Catalytic Converter, OEM: 51502
2005-2007 Cadillac STS Magnaflow Catalytic Converter 51502
Add for Price, Save 21%   NEW ITEM
OEM: 51502, Item: 1257284
  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

Cadillac STS Catalytic Converter, OEM: 546305
2008 Cadillac STS Magnaflow Catalytic Converter 546305
Add for Price, Save 20%   NEW ITEM
OEM: 546305, Item: 1259097
  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

Cadillac STS Catalytic Converter, OEM: 448018
2005 Cadillac STS Magnaflow Catalytic Converter 448018
Add for Price, Save 21%   NEW ITEM
OEM: 448018, Item: 1452497
  Only 7 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: Right

Cadillac STS Catalytic Converter, OEM: 99204HM
2005-2007 Cadillac STS Magnaflow Catalytic Converter 99204HM
Add for Price, Save 6%   NEW ITEM
OEM: 99204HM, Item: 1256349
  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, Right

Cadillac STS Catalytic Converter, OEM: 546004
2006-2007 Cadillac STS Magnaflow Catalytic Converter 546004
Add for Price, Save 20%   NEW ITEM
OEM: 546004, Item: 1411067
  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

Cadillac STS Catalytic Converter, OEM: 49170
2008-2011 Cadillac STS Magnaflow Catalytic Converter 49170
Add for Price, Save 19%   NEW ITEM
OEM: 49170, Item: 1258351
  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: Left

Cadillac STS Catalytic Converter, OEM: 24403
2005-2007 Cadillac STS Magnaflow Catalytic Converter 24403
Add for Price, Save 22%   NEW ITEM
OEM: 24403, Item: 1301908
  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

Cadillac STS Catalytic Converter, OEM: 51617
2005-2007 Cadillac STS Magnaflow Catalytic Converter 51617
Add for Price, Save 21%   NEW ITEM
OEM: 51617, Item: 1412860
  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

Cadillac STS Catalytic Converter, OEM: 546502
2006-2007 Cadillac STS Magnaflow Catalytic Converter 546502
Add for Price, Save 21%   NEW ITEM
OEM: 546502, Item: 1356548
  Only 7 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

Cadillac STS Catalytic Converter, OEM: 546170
2008 Cadillac STS Magnaflow Catalytic Converter 546170
Add for Price, Save 21%   NEW ITEM
OEM: 546170, Item: 1419578
  Only 5 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

Cadillac STS Catalytic Converter, OEM: 546617
2006-2007 Cadillac STS Magnaflow Catalytic Converter 546617
Add for Price, Save 20%   NEW ITEM
OEM: 546617, Item: 1386701
  Only 2 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: Right

Cadillac STS Catalytic Converter, OEM: 49171
2008-2011 Cadillac STS Magnaflow Catalytic Converter 49171
Add for Price, Save 19%   NEW ITEM
OEM: 49171, Item: 1258352
  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

Cadillac STS Catalytic Converter, OEM: 51204
2005-2007 Cadillac STS Magnaflow Catalytic Converter 51204
Add for Price,   NEW ITEM
OEM: 51204, Item: 1256805
  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, Right

DEC
2005-2006 Cadillac STS DEC Catalytic Converter GM6C20367
480.45, Save 39%   NEW ITEM
OEM: GM6C20367, Item: 1307148
  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

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: GM20373DEC
2005-2006 Cadillac STS DEC Exhaust Manifold with Integrated Catalytic Converter GM20373
Add for Price, Save 31%   NEW ITEM
OEM: GM20373, Item: 467848
  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 DEC directly for.. (more)

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

Vehicle Install Locations: Right

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: GM20367DEC
2005-2006 Cadillac STS DEC Exhaust Manifold with Integrated Catalytic Converter GM20367
Add for Price, Save 31%   NEW ITEM
OEM: GM20367, Item: 467842
  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 DEC directly for.. (more)

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

Vehicle Install Locations: Left

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 673-931/673931Dorman
2005-2006 Cadillac STS Dorman Exhaust Manifold with Integrated Catalytic Converter 673-931
363.85, Save 39%   NEW ITEM
OEM: 673-931, Item: 591333
  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

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 674-930/674930Dorman
2005-2010 Cadillac STS Dorman Exhaust Manifold with Integrated Catalytic Converter 674-930
Add for Price, Save 30%   NEW ITEM
OEM: 674-930, Item: 591650
  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: Right

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 16622Walker
2005-2006 Cadillac STS Walker Exhaust Manifold with Integrated Catalytic Converter 16622
350.95, Save 39%   NEW ITEM
OEM: 16622, Item: 1144406
  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

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 674-931/674931Dorman
2005-2010 Cadillac STS Dorman Exhaust Manifold with Integrated Catalytic Converter 674-931
Add for Price, Save 30%   NEW ITEM
OEM: 674-931, Item: 1070403
  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

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 50465Eastern Catalytic
2005-2010 Cadillac STS Eastern Catalytic Exhaust Manifold with Integrated Catalytic Converter 50465
376.75, Save 39%   NEW ITEM
OEM: 50465, Item: 1161622
  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

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 673-930/673930Dorman
2005-2006 Cadillac STS Dorman Exhaust Manifold with Integrated Catalytic Converter 673-930
403.75, Save 39%   NEW ITEM
OEM: 673-930, Item: 1069883
  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

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 50760
2005-2006 Cadillac STS Magnaflow Exhaust Manifold with Integrated Catalytic Converter 50760
Add for Price, Save 21%   NEW ITEM
OEM: 50760, Item: 1326467
  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

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 51071
2005-2010 Cadillac STS Magnaflow Exhaust Manifold with Integrated Catalytic Converter 51071
Add for Price, Save 21%   NEW ITEM
OEM: 51071, Item: 1256756
  Only 6 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: Right

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 51070
2005-2010 Cadillac STS Magnaflow Exhaust Manifold with Integrated Catalytic Converter 51070
Add for Price, Save 19%   NEW ITEM
OEM: 51070, Item: 1326466
  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

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 50761
2005-2006 Cadillac STS Magnaflow Exhaust Manifold with Integrated Catalytic Converter 50761
Add for Price, Save 19%   NO STOCK
OEM: 50761, Item: 1256919
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 51130
2006-2009 Cadillac STS Magnaflow Exhaust Manifold with Integrated Catalytic Converter 51130
Add for Price, Save 19%   NO STOCK
OEM: 51130, Item: 1256918
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 51131
2006-2009 Cadillac STS Magnaflow Exhaust Manifold with Integrated Catalytic Converter 51131
Add for Price, Save 19%   NO STOCK
OEM: 51131, Item: 1356564
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Cadillac STS Exhaust Manifold with Integrated Catalytic Converter, OEM: 50434
2006-2009 Cadillac STS Magnaflow Exhaust Manifold with Integrated Catalytic Converter 50434
Add for Price, Save 19%   NO STOCK
OEM: 50434, Item: 1258505
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Cadillac STS Universal Catalytic Converter, OEM: 93252Walker
2005 Cadillac STS Walker Universal Catalytic Converter 93252
93.65, Save 39%   POPULAR
OEM: 93252, Item: 358375
  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, Right