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2003 GMC Sierra 2500 HD
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2003 GMC Sierra 2500 HD

2003 GMC Sierra 2500 HD Catalytic Converters

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No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Magnaflow®
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Part Number: M66447209
Guaranteed to Fit
$390.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 3Gmxa08.1201; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 3Gmxa08.1201; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 3Gmxa08.1201; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 3Gmxa08.1201; Cutting And Welding Required
Product Details
Location : Rear, Driver or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 3 in. Inlet/Outlet; 13 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-103Gasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Magnaflow Catalytic Converter SaleSeries : California SeriesTube Material : Stainless Steel
Front, Passenger Side Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Davico®
Front, Passenger Side Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19430
Guaranteed to Fit
$359.99
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 8.1L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 8.1L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 8.1L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 8.1L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
Product Details
Location : Front, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Illegal for installation in NY on vehicles equipped with California emission systems; 50.25 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Exact Fit SeriesTube Material : Aluminized Steel
Rear, Passenger Side Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Davico®
Rear, Passenger Side Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19286
Guaranteed to Fit
$465.99
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 8.1L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 8.1L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 8.1L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 8.1L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
Product Details
Location : Rear, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 27.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Exact Fit SeriesTube Material : Aluminized Steel
Driver Side Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Davico®
Driver Side Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19459
Guaranteed to Fit
$384.99
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 8.1L With Federal Emission
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L With Federal Emission
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L With Federal Emission
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L With Federal Emission
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L With Federal Emission
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 8.1L With Federal Emission
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 8.1L With Federal Emission
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 8.1L With Federal Emission
Product Details
Location : Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 63 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Exact Fit SeriesTube Material : Aluminized Steel
Passenger Side OEM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Magnaflow®
Passenger Side OEM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6621989
Guaranteed to Fit
$336.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L 153.0 in. Wheelbase
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L 153.0 in. Wheelbase
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L 153.0 in. Wheelbase
Product Details
Location : Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : (1) Converter Quantity; 3 in. Main Piping Diameter; 8.75 in. Body Length x 5 in. Body Width x 5 in. Body Height; 3 in. ID x 3 in. OD; Round Body Shape; Spun Body Type; Bolt-On Inlet Attachment; Clamp-On Outlet Attachment; Stainless Steel Material; Post Converter; Includes Gasket; 23.25 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warranty on Construction; 25,000-mile Magnaflow limited warranty on EmissionsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OEM Grade SeriesTube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Magnaflow®
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: M6651009
Guaranteed to Fit
$231.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 8.1L
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
Product Details
Location : Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 3 in. Inlet/Outlet; 16 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OEM Grade SeriesTube Material : Stainless Steel
OEM Grade Series Semi-Universal (Welding Required) Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Magnaflow®
OEM Grade Series Semi-Universal (Welding Required) Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6651659
Guaranteed to Fit
$281.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L California Emissions Equipped Vehicles Registered Outside Of California; Low Emissions Vehicles (LEV)
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L California Emissions Equipped Vehicles Registered Outside Of California; Low Emissions Vehicles (LEV)
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L California Emissions Equipped Vehicles Registered Outside Of California; Low Emissions Vehicles (LEV)
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L California Emissions Equipped Vehicles Registered Outside Of California; Low Emissions Vehicles (LEV)
Product Details
Location : Front, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 3 in. Inlet/OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OEM Grade SeriesTube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Magnaflow®
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: M6660121
Guaranteed to Fit
$506.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.6L
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.6L
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.6L
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.6L
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Round body; 12 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OEM Grade SeriesTube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Magnaflow®
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: M6660120
Guaranteed to Fit
$506.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.6L DIESEL, With Duramax Engine
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.6L DIESEL, With Duramax Engine
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.6L DIESEL, With Duramax Engine
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.6L DIESEL, With Duramax Engine
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 3.5 in. Inlet/Outlet; 12 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Magnaflow 25,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : HM Grade SeriesTube Material : Stainless Steel
Passenger Side HM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Magnaflow®
Passenger Side HM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6693479
Guaranteed to Fit
$517.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
Product Details
Location : Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Gaskets Included; 49 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : HM Grade SeriesTube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Magnaflow®
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Part Number: M66447109
Guaranteed to Fit
$523.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 3Gmxa08.1201; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 3Gmxa08.1201; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 3Gmxa08.1201; Cutting And Welding Required
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 3Gmxa08.1201; Cutting And Welding Required
Product Details
Location : Front, Driver or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 3 in. Inlet/Outlet; 13 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-103Gasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : California SeriesTube Material : Stainless Steel
Driver Side OEM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Magnaflow®
Driver Side OEM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6649643
Guaranteed to Fit
$718.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L 133.0 in. Wheelbase, Without Pre-Converter
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L 133.0 in. Wheelbase, Without Pre-Converter
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L 133.0 in. Wheelbase, Without Pre-Converter
Product Details
Location : Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Gaskets Included; 60.75 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OEM Grade SeriesTube Material : Stainless Steel
HM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Magnaflow®
HM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6660501
Guaranteed to Fit
$771.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.6L
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.6L
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.6L
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.6L
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 45.75 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : HM Grade SeriesTube Material : Stainless Steel
Driver Side California Series Direct Fit Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Magnaflow®
Driver Side California Series Direct Fit Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Part Number: M66447270
Guaranteed to Fit
$1,035.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 3Gmxa06.0188
Product Details
Location : Driver SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : Gaskets Included; 65.25 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-103Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 5 year / 50,000 Mile WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : California SeriesTube Material : Stainless Steel
Passenger Side HM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Magnaflow®
Passenger Side HM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6623781
Guaranteed to Fit
$1,176.00
Vehicle Fitment
  • 2003 GMC Sierra 2500 HD Base 8 Cyl 8.1L With 2.5 in. Diameter Outlet
  • 2003 GMC Sierra 2500 HD WT 8 Cyl 8.1L With 2.5 in. Diameter Outlet
  • 2003 GMC Sierra 2500 HD SLT 8 Cyl 8.1L With 2.5 in. Diameter Outlet
  • 2003 GMC Sierra 2500 HD SLE 8 Cyl 8.1L With 2.5 in. Diameter Outlet
Product Details
Location : Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Gaskets Included; 25.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : HM Grade SeriesTube Material : Stainless Steel
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Magnaflow Passenger Side HM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
$1176
Q:Does this fit 133 wheelbase, and looks like the 2.5” is a slip joint for the 3” muffler? Show Less
Bruce
A:BEST ANSWERHi Bruce, There is no fit note about the wheelbase on this part. it does have a 2.5 outlet. This catalytic converter thas Federal type emission (47 State). Just a heads up, some states now require the use of CARB-COMPLIANT AFTERMARKET CONVERTERS. Please check the vehicle emission label usually found underneath the hood of the car to make sure the catalytic converter matches the car's Emission label specifications. Then we go from there. Show less
Grace G.
 
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