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Choose your Engine for your 2003 Chevrolet Silverado 2500 HD

  • 8 Cyl 6.0L
  • 8 Cyl 8.1L

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The Following brands are available based on your search.

  • AP Exhaust
    AP Exhaust
  • Eastern Catalytic
    Eastern Catalytic
  • Flowmaster
    Flowmaster
  • Magnaflow
    Magnaflow
  • Stainless Works
    Stainless Works
  • Walker Exhaust
    Walker Exhaust

Showing Products For 2003 Chevrolet Silverado 2500 HD Catalytic Converter

Below are all the different brands and applications for 2003 Chevrolet Silverado 2500 HD Catalytic Converter

Showing 1 - 10 of 122 Products for Catalytic Converter.

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Eastern Catalytic
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Left 8 Cyl 6.0L Eastern Catalytic - DIRECT FIT

P311-5EF6D3E    50423  New

Qty:
In Stock & Ready to Ship
$646.02
Eastern Catalytic Catalytic Converter  Left
  • Federal / EPA Direct-fit Converter Assembly
  • California Emissions; Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with California Emissions)
  • DIRECT FIT
  • Product Attributes:
    • Catalyst Type: Eco Ii
    • Clamp Qty: 2
    • Inlet Hardware: None
    • Inlet Type A: 3 Bolt Welded
    • O2 Sensor Ports: 2
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 3" Od
  • 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
2003 - Chevrolet Silverado 2500 HD Left V 8 Cyl 6.0L 364 5967
Magnaflow
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Rear Right 8 Cyl 6.0L Magnaflow - 3in. Universal California OBDII Catalytic Converter

P311-29F90AF    447209  New

Qty:
In Stock & Ready to Ship
$520.00
Magnaflow Catalytic Converter  Rear Right
  • Universal Catalytic Converter - 3.00in.
  • CARB Executive Order D-193-103 Engine Family Number 3GMXA06.0188 ; Certification Level : LEV1 LEV OE Spec Cutting and Welding Required During Installation
  • Universal Catalytic Converter - 3.00in.
  • 3in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Air Tube Adaptable: No
    • Body Height: 3.75
    • Body Length: 9
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Body Width: 5.5
    • Heat Shield Attached: Yes
    • Heat Shield Included: Yes
    • Heat Shield Material: Aluminized Steel
    • Inlet Attachment: Weld-on
    • Inlet Diameter: 3
    • Inlet Orientation: Straight
    • Outlet Attachment: Weld-on
    • Outlet Diameter: 3
    • Outlet Orientation: Straight
    • Overall Length: 13
    • Sensor Port Count: 0
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Rear Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Rear Right V 8 Cyl 6.0L 364 5967
Magnaflow
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Rear 8 Cyl 8.1L Magnaflow - 3in. Universal California OBDII Catalytic Converter

P311-29F90AF    447209  New

Qty:
In Stock & Ready to Ship
$520.00
Magnaflow Catalytic Converter  Rear
  • Universal Catalytic Converter - 3.00in.
  • CARB Executive Order D-193-103 Engine Family Number 3GMXA08.1201 ; Certification Level : LEV1 LEV OE Spec Cutting and Welding Required During Installation
  • Universal Catalytic Converter - 3.00in.
  • 3in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Air Tube Adaptable: No
    • Body Height: 3.75
    • Body Length: 9
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Body Width: 5.5
    • Heat Shield Attached: Yes
    • Heat Shield Included: Yes
    • Heat Shield Material: Aluminized Steel
    • Inlet Attachment: Weld-on
    • Inlet Diameter: 3
    • Inlet Orientation: Straight
    • Outlet Attachment: Weld-on
    • Outlet Diameter: 3
    • Outlet Orientation: Straight
    • Overall Length: 13
    • Sensor Port Count: 0
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Rear V 8 Cyl 8.1L 496 -
Magnaflow
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Rear Left 8 Cyl 6.0L Magnaflow - 3in. Universal California OBDII Catalytic Converter

P311-29F90AF    447209  New

Qty:
In Stock & Ready to Ship
$520.00
Magnaflow Catalytic Converter  Rear Left
  • Universal Catalytic Converter - 3.00in.
  • CARB Executive Order D-193-103 Engine Family Number 3GMXA06.0188 ; Certification Level : LEV1 LEV OE Spec Cutting and Welding Required During Installation
  • Universal Catalytic Converter - 3.00in.
  • 3in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Air Tube Adaptable: No
    • Body Height: 3.75
    • Body Length: 9
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Body Width: 5.5
    • Heat Shield Attached: Yes
    • Heat Shield Included: Yes
    • Heat Shield Material: Aluminized Steel
    • Inlet Attachment: Weld-on
    • Inlet Diameter: 3
    • Inlet Orientation: Straight
    • Outlet Attachment: Weld-on
    • Outlet Diameter: 3
    • Outlet Orientation: Straight
    • Overall Length: 13
    • Sensor Port Count: 0
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Rear Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Rear Left V 8 Cyl 6.0L 364 5967
Magnaflow
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Right 8 Cyl 6.0L Magnaflow - Direct-Fit CALIFORNIA OBDII CONVERTERS

P311-430A987    447281  New

15798954 , 15798958

Qty:
In Stock & Ready to Ship
$1,474.00
Magnaflow Catalytic Converter  Right
  • Direct-Fit Catalytic Converter
  • CARB Executive Order D-193-103 Engine Family Number 3GMXA06.0188 ; Certification Level : LEV1 LEV
  • Direct-Fit Catalytic Converter
  • Direct-Fit CALIFORNIA OBDII CONVERTERS
  • Product Attributes:
    • Air Tube Adaptable: No
    • Converter Quantity: 2
    • Inlet Attachment: Bolt-on
    • Main Piping Diameter: 3
    • Mounting Hardware Included: Yes
    • Outlet Attachment: Clamp-on
    • Overall Length: 79.2
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Right V 8 Cyl 6.0L 364 5967
Magnaflow
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Left 8 Cyl 6.0L Magnaflow - Direct-Fit CALIFORNIA OBDII CONVERTERS

P311-43909DE    447269  New

15013583 , 15013584 , 15013593 , 15070427 , 15070466 , 15077751 , 15199818

Qty:
In Stock & Ready to Ship
$1,381.00
Magnaflow Catalytic Converter  Left
  • Direct-Fit Catalytic Converter
  • CARB Executive Order D-193-103 Engine Family Number 3GMXA06.0188 ; Certification Level : LEV1 LEV
  • Direct-Fit Catalytic Converter
  • Direct-Fit CALIFORNIA OBDII CONVERTERS
  • Product Attributes:
    • Air Tube Adaptable: No
    • Clamp Included: Yes
    • Inlet Attachment: Bolt-on
    • Mounting Hardware Included: Yes
    • Overall Length: 62
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Left V 8 Cyl 6.0L 364 5967
AP Exhaust
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Rear Left 8 Cyl 8.1L AP Exhaust - 3GMXA08.1201

P311-12F04F8    912007  New

Qty:
In Stock & Ready to Ship
$367.24
AP Exhaust Catalytic Converter  Rear Left
  • CARB Compliant Universal OBDII Converter
  • 3GMXA08.1201; Universal - California 3GMXA08.1201 ALL (3 in/3 in; 16.5 in OAL) Legal Note: In Compliance with California Emissions Requirements EO Number : D-280-101
  • CARB Compliant Universal OBDII Converter - 16.5" OAL; 3.00" ID Neck / 3.00" ID Neck; Large Oval; O2 Port: None
  • 3GMXA08.1201
  • Product Attributes:
    • Air Tube Qty: None
    • Body Height (IN): 4
    • Body Length (IN): 12.5
    • Body Material: Stainless Steel
    • Body Width (IN): 7.25
    • California Proposition 65: Warning: Cancer And Reproductive Harm
    • Executive Order: D-280-101
    • Inlet Type A: 3.00" Id Neck
    • Issued Company: Airtek, Inc.
    • O2 Sensor Ports: None
    • Outlet Type A: 3.00" Id Neck
    • Shape: Large Oval
    • Substrate Material: Ceramic
  • ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency while our 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 in total allows AP Emissions Technologies to maintain industry-leading efficiency, productivity, and competitive pricing.
Brand: AP Exhaust
Position: Rear Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Rear Left V 8 Cyl 8.1L 496 -
AP Exhaust
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Front Left 8 Cyl 6.0L AP Exhaust - 3GMXA06.0188

P311-207354A    912005  New

Qty:
In Stock & Ready to Ship
$367.24
AP Exhaust Catalytic Converter  Front Left
  • CARB Compliant Universal OBDII Converter
  • 3GMXA06.0188; Universal - California 3GMXA06.0188 ALL (2.25 in/2.25 in; 16.5 in OAL) Legal Note: In Compliance with California Emissions Requirements EO Number : D-280-101
  • CARB Compliant Universal OBDII Converter - 16.5" OAL; 2.25" ID Neck / 2.25" ID Neck; Large Oval; O2 Port: None
  • 3GMXA06.0188
  • Product Attributes:
    • Air Tube Qty: None
    • Body Height (IN): 4
    • Body Length (IN): 12.5
    • Body Material: Stainless Steel
    • Body Width (IN): 7.25
    • California Proposition 65: Warning: Cancer And Reproductive Harm
    • Executive Order: D-280-101
    • Inlet Type A: 2.25" Id Neck
    • Issued Company: Airtek, Inc.
    • O2 Sensor Ports: None
    • Outlet Type A: 2.25" Id Neck
    • Shape: Large Oval
    • Substrate Material: Ceramic
  • ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency while our 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 in total allows AP Emissions Technologies to maintain industry-leading efficiency, productivity, and competitive pricing.
Brand: AP Exhaust
Position: Front Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Front Left V 8 Cyl 6.0L 364 5967
AP Exhaust
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Front Left 8 Cyl 6.0L AP Exhaust - 3GMXA06.0188

P311-12CEA4F    912005R  New

Qty:
In Stock & Ready to Ship
$373.00
AP Exhaust Catalytic Converter  Front Left
  • CARB Compliant Universal OBDII Converter
  • 3GMXA06.0188; Universal - California 3GMXA06.0188 ALL (2.25 in/2.25 in; 16 in OAL; Round Body) Legal Note: In Compliance with California Emissions Requirements EO Number : D-280-101
  • CARB Compliant Universal OBDII Converter - 16" OAL; 2.25" ID Neck / 2.25" ID Neck; Round; O2 Port: None
  • 3GMXA06.0188
  • Product Attributes:
    • Air Tube Qty: None
    • Body Height (IN): 4.25
    • Body Length (IN): 12
    • Body Material: Stainless Steel
    • Body Width (IN): 5
    • California Proposition 65: Warning: Cancer And Reproductive Harm
    • Executive Order: D-280-101
    • Inlet Type A: 2.25" Id Neck
    • Issued Company: Airtek, Inc.
    • O2 Sensor Ports: None
    • Outlet Type A: 2.25" Id Neck
    • Shape: Round
    • Substrate Material: Ceramic
  • ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency while our 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 in total allows AP Emissions Technologies to maintain industry-leading efficiency, productivity, and competitive pricing.
Brand: AP Exhaust
Position: Front Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Front Left V 8 Cyl 6.0L 364 5967
AP Exhaust
2003 Chevrolet Silverado 2500 HD Catalytic Converter - Front Left 8 Cyl 6.0L AP Exhaust - 3GMXA06.0188

P311-49804B5    912006  New

Qty:
In Stock & Ready to Ship
$367.24
AP Exhaust Catalytic Converter  Front Left
  • CARB Compliant Universal OBDII Converter
  • 3GMXA06.0188; Universal - California 3GMXA06.0188 ALL (2.5 in/2.5 in; 16.5 in OAL) Legal Note: In Compliance with California Emissions Requirements EO Number : D-280-101
  • CARB Compliant Universal OBDII Converter - 16.5" OAL; 2.50" ID Neck / 2.50" ID Neck; Large Oval; O2 Port: None
  • 3GMXA06.0188
  • Product Attributes:
    • Air Tube Qty: None
    • Body Height (IN): 4
    • Body Length (IN): 12.5
    • Body Material: Stainless Steel
    • Body Width (IN): 7.25
    • California Proposition 65: Warning: Cancer And Reproductive Harm
    • Executive Order: D-280-101
    • Inlet Type A: 2.50" Id Neck
    • Issued Company: Airtek, Inc.
    • O2 Sensor Ports: None
    • Outlet Type A: 2.50" Id Neck
    • Shape: Large Oval
    • Substrate Material: Ceramic
  • ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency while our 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 in total allows AP Emissions Technologies to maintain industry-leading efficiency, productivity, and competitive pricing.
Brand: AP Exhaust
Position: Front Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Chevrolet Silverado 2500 HD Front Left V 8 Cyl 6.0L 364 5967

Showing 1 - 10 of 122 Products for Catalytic Converter.