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Catalytic Converter for 2004 Buick Century

We have 18 Items In-stock. Select your vehicle's Submodel to continue.

49-state legal Eastern Direct Fit Catalytic Converter

Eastern 49-State Legal Direct Fit Catalytic Converters

  • NANO technology for better converter efficiency
  • Advanced materials design for optimum engine output and catalytic efficiency
  • Complete range of inlet and outlet diameters
Backed by 3 decades of product expertise, Eastern continues to invest in state-of-the-art production equipment to guarantee only the best for their customers - making them ready for the future.

Note:
  • 49-state legal; Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states
Eastern Catalytic Converter, Eastern ECO III, Center, 49-State Legal - No CA Shipments
$188.48 List Price $222.41 Save $33.93 Availability: In Stock
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  • SKU#: EAST50322
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 40 in. overall length
  • Replaces OE Number: 10343185, 24507885, 24508102
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Buick Century submodels:
  • 6 Cyl 3.1L | Custom, Limited
Rating: (see review/s)

"i had to buy better gasketsthe ones that came were cheaply made and would not seal.The sound is annoying alsothe car has a low growl sound now and did not before.If i had known this i would have paid the 250.00 instead of the 170.00 and received a better quality part.thats what i get trying to be frugal(cheap)." posted by: bubbajay405 on July 11, 2013

"This product is not as quite as the original. Next time I will spend twice as much to get original." posted by: Weekend Warrior on April 29, 2009

Eastern 49-state legal Universal Catalytic Converter

Eastern 49-State Legal Universal Catalytic Converters

  • NANO technology for better converter efficiency
  • Advanced materials design for optimum engine output and catalytic efficiency
  • Complete range of inlet and outlet diameters
  • Non-directional for ease of installation
Backed by 3 decades of product expertise, Eastern continues to invest in state-of-the-art production equipment to guarantee only the best for their customers - making them ready for the future.

Note:
  • 49-state legal; Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states
Eastern Catalytic Converter, Eastern ECO GM, Center, 49-State Legal - No CA Shipments
$95.17 List Price $112.30 Save $17.13 Availability: In Stock
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  • Free Ground Shipping
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  • SKU#: EAST99175
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 12 in. L x 6 in. W x 4.25 in. H, 16 in. overall length
  • Replaces OE Number: 25165284, 25165291
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Buick Century submodels:
  • 6 Cyl 3.1L | Custom, Limited

Magnaflow 49-State Legal Semi-Universal Catalytic Converter

  • Not legal for use in California or in states adopting the California emissions standards
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These 49-State Legal semi-universal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

Magnaflow Catalytic Converter, Magnaflow 49-State Semi-Universal, 49-State Legal - No CA Shipments, Minor Modifications
$105.21 List Price $136.16 Save $30.95 Availability: In Stock
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  • SKU#: M6699306HM
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 11 in. L x 5.13 in. W, 15 in. overall length
  • EO Number: Not applicable
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Buick Century submodels:
  • 6 Cyl 3.1L | Custom, Limited

Magnaflow 49-State Legal Direct Fit Catalytic Converter

  • Not legal for use in California or in states adopting the California emissions standards
  • Easy bolt-on Installation with no cutting, welding or bending required
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These 49-State Legal direct-fit catalytic converters are specifically designed to fit your vehicle with a no-hassle installation – no cutting, welding, or bending required.  Engineered to cut emissions and improve performance.

Magnaflow Catalytic Converter, Magnaflow 49-State Direct Fit, 49-State Legal - No CA Shipments, Direct Fit
$234.53 List Price $303.51 Save $68.98 Availability: In Stock
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  • SKU#: M6623433
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 11 in.
  • EO Number: Not applicable
  • Notes: Gaskets Included
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Buick Century submodels:
  • 6 Cyl 3.1L | Custom, Limited
Rating: (see review/s)

"excellent product fit directly in place with ease. lower exhaust gasket wouldn t seal had to use oem gasket and was fine but other wise great product and very good customer service" posted by: shaynus on March 28, 2014

"My oe cat was clogged on my 2003 impala. I learned this was quite frequent for 3400 cars with this oe cat around 100000 miles. It was this or a 700 dollar oe cat. Went with this. Installed myself with no problems. I figure I could buy 3 of these if need be over time for replacement over an oe cat. If my vehicle lasts that long and it would be around the same price anyway. I have faith in this cat though. Upped my mileage handful efficiency from my oe cat. It was bad though...so thats a given. Car ran like New after install. Happy car happy driver." posted by: Phlanx on January 13, 2014

Magnaflow California Legal Direct-Fit Catalytic Converters

  • California/50-State Legal
  • Easy bolt-on Installation with no cutting, welding or bending required
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These direct-fit 50-State Legal catalytic converters are specifically designed to fit your vehicle with a no-hassle installation – no cutting, welding, or bending required.  Engineered to cut emissions and improve performance.

Magnaflow Catalytic Converter, Magnaflow 50-State Direct-Fit, 50-State Legal, Direct Fit
$615.96 List Price $797.13 Save $181.17 Availability: In Stock
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  • SKU#: M66456059
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • EO Number: D-193-114
  • Notes: Gaskets Included
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Buick Century submodels:
  • 6 Cyl 3.1L | Custom, Limited

More results for 2004 Buick Century Catalytic Converter

MAGNAFLOW OEM GRADE (49-STATE LEGAL) DIRECT FIT CATALYTIC CONVERTER
  • Not legal for use in California or in states adopting the California emissions standards
  • Designed for vehicles equipped with California emissions but not registered or driven in a state adopting the... (see more)
MAGNAFLOW CALIFORNIA LEGAL SEMI-UNIVERSAL CATALYTIC CONVERTER
  • 50-State/California Legal
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic,... (see more)
MAGNAFLOW OEM GRADE (49-STATE LEGAL) SEMI-UNIVERSAL CATALYTIC CONVERTER
  • Not legal for use in California or in states adopting the California emissions standards
  • Designed for vehicles equipped with California emissions but not registered or driven in a state adopting... (see more)
CATCO CATALYTIC CONVERTER (49-STATE LEGAL - NO CA SHIPMENTS)

Catco catalytic converters are designed with 409 stainless steel pipes and shell that guarantee the customers of durability and longer life.

Note:

  • 49-state legal; Not for sale or use in California;... (see more)
WALKER 49-STATE LEGAL - NO CA SHIPMENTS CATALYTIC CONVERTER

Walker catalytic converters feature OE style design and fit, thicker OE-quality flanges, oxygen sensor fittings, heat-shielded pipe, and structural brace for enhanced strength and... (see more)

WALKER 50-STATE LEGAL CATALYTIC CONVERTER

Walker catalytic converters feature OE style design and fit, thicker OE-quality flanges, oxygen sensor fittings, heat-shielded pipe, and structural brace for enhanced strength and... (see more)

BOSAL 49-STATE LEGAL - NO CA SHIPMENTS CATALYTIC CONVERTER

Bosal catalytic converters are made to fit vehicle-specific requirements for backpressure, emissions, sound levels, and sensors. They are designed and built for long life reliability.

Notes:

BENCHMARK 49-STATE LEGAL (NO CA) OE REPLACEMENT CATALYTIC CONVERTER

Benchmark catalytic converters are considered to be the industry's standard replacement catalytic converter. They are the recognized leading catalytic converters in terms of fitment and durability.... (see more)