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Finish Selecting Your Vehicle to Shop For Your Catalytic Converter

Choose a Year for your Hummer 's Catalytic Converter

  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • 2004
  • 2003

Shop By Brand

The Following brands are available based on your search.

  • Bosal
    Bosal
  • DEC
    DEC
  • Davico Converters
    Davico Converters
  • Eastern Catalytic
    Eastern Catalytic
  • Magnaflow
    Magnaflow
  • Walker
    Walker

Best Selling Genuine Hummer Catalytic Converters

  • We Stock the following top leading brands, including Eastern Catalytic, Bosal, Walker
  • Constantly Updated Inventory of Hummer Replacement Catalytic Converter Parts

We stock Catalytic Converter parts for most Hummer models, including H2, H3, H3T.

Eastern Catalytic
Qty:
$326.37
Eastern Catalytic Catalytic Converter  Right
  • Federal / EPA Direct-fit Converter Assembly
  • Undercar Legal Note: Not For Sale or Use in the state of CA/NY & Maine (vehicles with California Emissions)
  • DIRECT FIT
  • Product Attributes:
    • Catalyst Type: Eco Gm
    • Inlet Hardware: None
    • Inlet Type A: 3 Bolt Welded
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 2 Bolt Welded
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - Hummer H2 Right V 8 Cyl 6.0L 364 5967
Eastern Catalytic
Qty:
$305.08
Eastern Catalytic Catalytic Converter  Left
  • Federal / EPA Direct-fit Converter Assembly
  • Undercar Legal Note: Not For Sale or Use in the state of CA/NY & Maine (vehicles with California Emissions)
  • DIRECT FIT
  • Product Attributes:
    • Catalyst Type: Eco Ii
    • Inlet Hardware: None
    • Inlet Type A: 3 Bolt Welded
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 2.5" Od
    • Overall Length (IN): 50
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - Hummer H2 Left V 8 Cyl 6.0L 364 5967
Bosal
Qty:
$223.27
Bosal Catalytic Converter  Rear
  • Chevrolet- GMC Trucks 06-04
  • Bosal Federal Direct-Fit Premium Load OBDII Catalytic Converter
Brand: Bosal
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2006 - Hummer H3 Rear L 5 Cyl 3.5L 211 3460
Bosal
Qty:
$223.27
Bosal Catalytic Converter
  • Chevrolet- GMC Trucks 06-04
  • Bosal Federal Direct-Fit Premium Load OBDII Catalytic Converter
Brand: Bosal
Additional Fitment Information:
Vehicle Block Engine CID CC
2008 - Hummer H3 L 5 Cyl 3.7L 223 3654
Walker
Qty:
$114.39
Walker Catalytic Converter  Rear
  • Fits Fed. & Calif. Emiss. Models.; Modifications and/or Additional Parts Required.
  • Walker EPA Ultra Universal Converter
  • Product Attributes:
    • Body Height: 4.250
    • Body Length: 10.000
    • Body Shape: Small Oval
    • Body Width: 6.125
    • Fitment: Universal
    • Inlet Connection Type: Pipe Connection
    • Inlet Diameter 1: 2.500
    • Inlet Diameter Designation: Inside Diameter
    • Max Year Covered: 2011
    • Maximum Engine Size: 5.9l
    • Maximum Test Weight: 8500
    • Min Year Covered: 1995
    • Most Popular Make / Model: Ford F-150
    • Most Popular Year: 2002
    • Outlet Connection Type: Pipe Connection
    • Outlet Diameter 1: 2.500
    • Outlet Diameter Designation: Inside Diameter
    • Overall Length: 13.250
    • Oxygen sensor location: No Port Location
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 10242750
Brand: Walker
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2006 - Hummer H3 Rear L 5 Cyl 3.5L 211 3460
Eastern Catalytic
Qty:
$176.02
Eastern Catalytic Catalytic Converter  Right Center
  • CARB Certified Universal Converter
  • Executive Order # D-665-18 Eng. Fam.: 5GMXT06.0194 CARB FTB STD: LEV1 LEV Legal Note: In Compliance with the state of California NY (vehicles with California Emissions) Emissions Requirements
  • UNIVERSAL
  • Product Attributes:
    • Catalyst Type: Eco Carb
    • Executive Order: D-665-18
    • Executive Order #: D-665-18
    • Inlet Gasket Qty: None
    • Inlet Type A: 2.5"
    • Outlet Gasket Qty: None
    • Outlet Type A: 2.5"
    • Shape: Large Oval
    • Weight Class: Ldt2/mdv
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary CARB-compliant NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Right Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - Hummer H2 Right Center V 8 Cyl 6.0L 364 5967
Eastern Catalytic
Qty:
$176.02
Eastern Catalytic Catalytic Converter  Left Center
  • CARB Certified Universal Converter
  • Executive Order # D-665-18 Eng. Fam.: 5GMXT06.0194 CARB FTB STD: LEV1 LEV Legal Note: In Compliance with the state of California NY (vehicles with California Emissions) Emissions Requirements
  • UNIVERSAL
  • Product Attributes:
    • Catalyst Type: Eco Carb
    • Executive Order: D-665-18
    • Executive Order #: D-665-18
    • Inlet Gasket Qty: None
    • Inlet Type A: 2.5"
    • Outlet Gasket Qty: None
    • Outlet Type A: 2.5"
    • Shape: Large Oval
    • Weight Class: Ldt2/mdv
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary CARB-compliant NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Left Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - Hummer H2 Left Center V 8 Cyl 6.0L 364 5967
Eastern Catalytic
Qty:
$176.02
Eastern Catalytic Catalytic Converter  Right Center
  • CARB Certified Universal Converter
  • Executive Order # D-665-18 Eng. Fam.: 4GMXT06.0194 CARB FTB STD: LEV1 LEV Legal Note: In Compliance with the state of California NY (vehicles with California Emissions) Emissions Requirements
  • UNIVERSAL
  • Product Attributes:
    • Catalyst Type: Eco Carb
    • Executive Order: D-665-18
    • Executive Order #: D-665-18
    • Inlet Gasket Qty: None
    • Inlet Type A: 2.5"
    • Outlet Gasket Qty: None
    • Outlet Type A: 2.5"
    • Shape: Large Oval
    • Weight Class: Ldt2/mdv
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary CARB-compliant NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Right Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2004 - Hummer H2 Right Center V 8 Cyl 6.0L 364 5967
Eastern Catalytic
Qty:
$176.02
Eastern Catalytic Catalytic Converter  Left Center
  • CARB Certified Universal Converter
  • Executive Order # D-665-18 Eng. Fam.: 4GMXT06.0194 CARB FTB STD: LEV1 LEV Legal Note: In Compliance with the state of California NY (vehicles with California Emissions) Emissions Requirements
  • UNIVERSAL
  • Product Attributes:
    • Catalyst Type: Eco Carb
    • Executive Order: D-665-18
    • Executive Order #: D-665-18
    • Inlet Gasket Qty: None
    • Inlet Type A: 2.5"
    • Outlet Gasket Qty: None
    • Outlet Type A: 2.5"
    • Shape: Large Oval
    • Weight Class: Ldt2/mdv
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary CARB-compliant NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Left Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2004 - Hummer H2 Left Center V 8 Cyl 6.0L 364 5967
Eastern Catalytic
Qty:
$318.91
Eastern Catalytic Catalytic Converter  Right Center
  • CARB Certified Direct Fit Converter
  • Executive Order # D-665-18 Eng. Fam.: 3GMXT06.0194 CARB FTB STD: LEV1 LEV Legal Note: In Compliance with the state of California NY (vehicles with California Emissions) Emissions Requirements
  • DIRECT FIT
  • Product Attributes:
    • Catalyst Type: Eco Carb
    • Executive Order: D-665-18
    • Inlet Type A: 3 Bolt Welded
    • Outlet Gasket Qty: None
    • Outlet Type A: 2 Bolt Welded
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary CARB-compliant NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Right Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Hummer H2 Right Center V 8 Cyl 6.0L 364 5967
Eastern Catalytic
Qty:
$296.95
Eastern Catalytic Catalytic Converter  Left Center
  • CARB Certified Direct Fit Converter
  • Executive Order # D-665-18 Eng. Fam.: 3GMXT06.0194 CARB FTB STD: LEV1 LEV Legal Note: In Compliance with the state of California NY (vehicles with California Emissions) Emissions Requirements
  • DIRECT FIT
  • Product Attributes:
    • Catalyst Type: Eco Carb
    • Executive Order: D-665-18
    • Inlet Type A: 3 Bolt Welded
    • Outlet Gasket Qty: None
    • Outlet Type A: 2.5" Od
    • Overall Length (IN): 50
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary CARB-compliant NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Left Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Hummer H2 Left Center V 8 Cyl 6.0L 364 5967
Eastern Catalytic
Qty:
$176.02
Eastern Catalytic Catalytic Converter  Right Center
  • CARB Certified Universal Converter
  • Executive Order # D-665-18 Eng. Fam.: 3GMXT06.0194 CARB FTB STD: LEV1 LEV Legal Note: In Compliance with the state of California NY (vehicles with California Emissions) Emissions Requirements
  • UNIVERSAL
  • Product Attributes:
    • Catalyst Type: Eco Carb
    • Executive Order: D-665-18
    • Executive Order #: D-665-18
    • Inlet Gasket Qty: None
    • Inlet Type A: 2.5"
    • Outlet Gasket Qty: None
    • Outlet Type A: 2.5"
    • Shape: Large Oval
    • Weight Class: Ldt2/mdv
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary CARB-compliant NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Right Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Hummer H2 Right Center V 8 Cyl 6.0L 364 5967
Eastern Catalytic
Qty:
$162.48
Eastern Catalytic Catalytic Converter  Right Center
  • CARB Certified Universal Converter
  • Executive Order # D-665-18 Eng. Fam.: 3GMXT06.0194 CARB FTB STD: LEV1 LEV Legal Note: In Compliance with the state of California NY (vehicles with California Emissions) Emissions Requirements
  • UNIVERSAL
  • Product Attributes:
    • Catalyst Type: Eco Carb
    • Executive Order: D-665-18
    • Executive Order #: D-665-18
    • Inlet Gasket Qty: None
    • Inlet Type A: 2.5"
    • Outlet Gasket Qty: None
    • Outlet Type A: 2.5"
    • Shape: Large Oval
    • Weight Class: Ldt2/mdv
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary CARB-compliant NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Position: Right Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Hummer H2 Right Center V 8 Cyl 6.0L 364 5967
Bosal
Qty:
$79.79
Bosal Catalytic Converter  Right
  • Cutting and welding required during installation
  • Bosal Federal Universal Premium Load OBDII Catalytic Converter
Brand: Bosal
Position: Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2009 - Hummer H2 Right V 8 Cyl 6.2L 376 6162
Bosal
Qty:
$79.79
Bosal Catalytic Converter
  • Cutting and welding required during installation
  • Bosal Federal Universal Premium Load OBDII Catalytic Converter
Brand: Bosal
Additional Fitment Information:
Vehicle Block Engine CID CC
2007 - Hummer H3 L 5 Cyl 3.7L 223 3654
Bosal
Qty:
$79.79
Bosal Catalytic Converter  Left
  • Cutting and welding required during installation
  • Bosal Federal Universal Premium Load OBDII Catalytic Converter
Brand: Bosal
Position: Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2008 - Hummer H2 Left V 8 Cyl 6.2L 376 6162
Bosal
Qty:
$64.47
Bosal Catalytic Converter
  • Cutting and welding required during installation
  • Bosal Federal Universal Standard Load OBDII Catalytic Converter
Brand: Bosal
Additional Fitment Information:
Vehicle Block Engine CID CC
2007 - Hummer H3 L 5 Cyl 3.7L 223 3654
Bosal
Qty:
$70.48
Bosal Catalytic Converter  Right
  • Cutting and welding required during installation
  • Bosal Federal Universal Standard Load OBDII Catalytic Converter
Brand: Bosal
Position: Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - Hummer H2 Right V 8 Cyl 6.0L 364 5967
Bosal
Qty:
$70.48
Bosal Catalytic Converter  Left
  • Cutting and welding required during installation
  • Bosal Federal Universal Standard Load OBDII Catalytic Converter
Brand: Bosal
Position: Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - Hummer H2 Left V 8 Cyl 6.0L 364 5967
Bosal
Qty:
$70.48
Bosal Catalytic Converter  Rear
  • Cutting and welding required during installation
  • Bosal Federal Universal Standard Load OBDII Catalytic Converter
Brand: Bosal
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2006 - Hummer H3 Rear L 5 Cyl 3.5L 211 3460