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GMC Sierra 3500 Catalytic Converter

We have 4 Items In-stock. Select a year to continue.
$402.38 List Price $474.81 Save $72.43 Availability: In Stock
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Eastern ECO II Series Catalytic Converter

30 years of innovation is proof enough that Eastern is the best manufacturer of the finest aftermarket and original equipment catalytic converters on the market. Their ECO Series Catalytic Converters which are designed to help keep the Check Engine Light (MIL) off is another set of catalytic converters with world class quality.

The Eastern ECO II Series Catalytic Converter is made specifically for most complex or second generation on board diagnostic (OBD II) systems. It features wash coats with greater loadings of precious metals to handle applications with ultra low emissions, higher than normal emissions, as well as vehicles with higher mileage and heavier workloads.

The Eastern ECO II Series Catalytic Converter's features in a nutshell:

  • Engineered with Eastern's proprietary NANO technology yielding highly efficient loadings for lower cost and better converter efficiency
  • Features an advanced materials design for maximum engine output and performance

Specifications:

  • 3-way style
  • Flange inlet
  • Flange outlet
  • With two 18 mm x 1.5 mm style oxygen sensor ports
  • Standard assembly with two catalytic converters
  • Oval body
  • Single inlet and outlet configuration

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: EAST50424
  • Brand: Eastern
  • Fit Note: For Vehicles with California Emission System
  • Product Fit: Direct fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
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Fits the following GMC Sierra 3500 Years:
  • 2006 | 8 Cyl 8.1L | SL
  • 2004-2006 | 8 Cyl 8.1L | WT
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$647.87 List Price $838.42 Save $190.55 Availability: In Stock
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  • 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.

  • SKU#: M6660502
  • Brand: Magnaflow
  • Fit Note: Diesel
  • Quantity Sold: Assembly
  • Tube Material: Stainless steel
  • EO Number: Not applicable
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
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Fits the following GMC Sierra 3500 Years:
  • 2006 | 8 Cyl 6.6L | SL, SLE, SLT, WT
$279.75 List Price $330.11 Save $50.36 Availability: In Stock
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DAVICO EXACT FIT 49-STATE CATALYTIC CONVERTER

Do not settle for a universal or generic catalytic converter when you can replace your old or failing catalytic converter with a direct fit unit from Davico Manufacturing. This company has been producing catalytic converters since 1987 and is known for producing direct fit aftermarket catalytic converters that are at par with OEM units in terms of quality, specifications, and performance. Their Exact Fit Catalytic Converter is sized specifically for each application and uses the right substrate to meet the aftermarket performance standards for catalytic converters.

Features:
  • Direct fit - made using reliable computer-controlled fabrication system for flawless replication
  • Manufactured using strict OEM and emission control specifications
  • No cutting, sliding, clamping, or welding required for easier installation
Specifications:
  • 3-bolt loose flange and slip-fit inlets
  • 2-bolt fixed flange outlet
  • 2 oxygen sensor ports
  • Round body
  • Y-pipe assembly

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: DAV193712
  • Brand: Davico
  • Product Fit: Direct fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 2-3 business days
  • Catalyst Substrate Material: Ceramic honeycomb
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Fits the following GMC Sierra 3500 Years:
  • 2007 | 8 Cyl 6.0L | Classic SL, Classic SLE, Classic SLT, Classic WT
$447.28 List Price $527.79 Save $80.51 Availability: In Stock
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WALKER ULTRA CATALYTIC CONVERTER

Walker Ultra Direct-Fit Catalytic Converter is made available for OBDII (1996 and newer) vehicles. It is manufactured for specific vehicle emissions requirements. It features a higher loading of precious metals, optimal substrate content, and a high technology washcoat to ensure unsurpassed performance and durability.

Specifications:
  • Stainless Steel body material
  • Ceramic catalyst substrate material
  • 2 oxygen sensor ports
  • Round body
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: WK55557
  • Brand: Walker
  • Fit Note: Federal Emiss. Models, 49 State Direct Fit
  • Product Fit: Direct fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 5-year or 50,000-mile Walker limited warranty
 
Fits the following GMC Sierra 3500 Years:
  • 2007 | 8 Cyl 8.1L | Classic SL, Classic SLE, Classic SLT, Classic WT
  • 2006 | 8 Cyl 8.1L | SL
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