{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
2006 GMC Sierra 3500

2006 GMC Sierra 3500 Catalytic Converters

Refine by:

Shop Catalog

Showing 1 - 15 of 54 results
Display item:
15
30
45
Sort by:
Rear Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required, California Series
Part Number: M66447209
Guaranteed to Fit
$390.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 6Gmxk06.0388; Cutting And Welding Required
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 6Gmxk06.0388; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 6Gmxk06.0388; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SLT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 6Gmxk06.0388; Cutting And Welding Required
Product Details
Location : RearEmissions : 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 Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), Exact Fit Series
Part Number: DAV19430
Guaranteed to Fit
$359.99
Vehicle Fitment
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L Cab & Chassis, 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 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
$470.99
Vehicle Fitment
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L Cab & Chassis, With California Emission; Oe Is Welded Assembly. Cut To Fit.; Gvw 10,000 - 14,000; Outlet Fits Over 3"Od Pipe
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L Cab & Chassis, 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 Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4, 8.1L, Exact Fit Series
Part Number: DAV108306
Guaranteed to Fit
$1,142.49
Vehicle Fitment
  • 2006 GMC Sierra 3500 SLT 8 Cyl 8.1L With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.0L With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L With Federal Emission; Test Group Name: 6Gmxh06.0583,Std: LEV1 ULEV; Weight Class: Mdv4
Product Details
Location : Driver SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 29 in. W x 18 in. H; 63 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-709-1Gasket 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 Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), With Federal Emission, 8 Cyl 6.0L, Exact Fit Series
Part Number: DAV19459
Guaranteed to Fit
$389.49
Vehicle Fitment
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L With Federal Emission
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L With Federal Emission
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.0L With Federal Emission
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L With Federal Emission
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L With Federal Emission
  • 2006 GMC Sierra 3500 SLT 8 Cyl 8.1L With Federal Emission
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L With Federal Emission
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L 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
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: M6699209HM
Guaranteed to Fit
$178.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.6L Cutting And Welding Required; Not Permitted For Use in The State Of Colorado
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.6L Cutting And Welding Required; Not Permitted For Use in The State Of Colorado
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.6L Cutting And Welding Required; Not Permitted For Use in The State Of Colorado
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.6L Cutting And Welding Required; Not Permitted For Use in The State Of Colorado
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 in. Inlet/Outlet; 13 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
Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), Cutting And Welding Required; Not Permitted For Use in The State Of Colorado, 8 Cyl 6.6L, OEM Grade S
Part Number: M6651209
Guaranteed to Fit
$194.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.6L Cutting And Welding Required; Not Permitted For Use in The State Of Colorado
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.6L Cutting And Welding Required; Not Permitted For Use in The State Of Colorado
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.6L Cutting And Welding Required; Not Permitted For Use in The State Of Colorado
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.6L Cutting And Welding Required; Not Permitted For Use in The State Of Colorado
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 in. Inlet/Outlet; 13 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 : OEM Grade SeriesTube Material : Stainless Steel
Driver Side Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), Without Pre-Converter, 8 Cyl 6.0L, OEM Grade Series - Driver Side
Part Number: M6651659
Guaranteed to Fit
$281.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L Without Pre-Converter
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L Without Pre-Converter
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L Without Pre-Converter
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L Without Pre-Converter
  • 2006 GMC Sierra 3500 SLT 8 Cyl 8.1L Without Pre-Converter
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.0L Without Pre-Converter
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L Without Pre-Converter
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L 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 : 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
Rear, Passenger Side Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME) - Passenger Side - Rear, Passenger Side
Part Number: M6652494
Guaranteed to Fit
$348.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L Standard Cab Pickup, Without 9900 Lb. Gross Vehicle Weight (Gvw); Low Emission Vehicle (Lev); Except Low Emission Vehicle (Lev)
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L Standard Cab Pickup, Without 9900 Lb. Gross Vehicle Weight (Gvw); Except Low Emission Vehicle (Lev)
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L Standard Cab Pickup, Without 9900 Lb. Gross Vehicle Weight (Gvw); Except Low Emission Vehicle (Lev)
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L Standard Cab Pickup, Without 9900 Lb. Gross Vehicle Weight (Gvw); Low Emission Vehicle (Lev); Except Low Emission Vehicle (Lev)
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L Standard Cab Pickup, Without 9900 Lb. Gross Vehicle Weight (Gvw); Except Low Emission Vehicle (Lev)
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L Standard Cab Pickup, Without 9900 Lb. Gross Vehicle Weight (Gvw); Low Emission Vehicle (Lev); Except Low Emission Vehicle (Lev)
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 : (1) Converter Quantity; 3 in. Main Piping Diameter; 8.75 in. Body Length x 4 in. Body Width x 4 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 Clamp and Hangers; 23.75 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 : 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
Front, Passenger Side Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), Crew Cab Pickup, Low Emission Vehicle (Lev), 8 Cyl 6.0L, OEM Grade Series
Part Number: M6652493
Guaranteed to Fit
$447.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.0L Extended Cab Pickup, Low Emission Vehicle (Lev)
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L Standard Cab Pickup, Low Emission Vehicle (Lev)
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L Standard Cab Pickup, Low Emission Vehicle (Lev)
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L Crew Cab Pickup, Low Emission Vehicle (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 : (1) Converter Quantity; 3 in. Main Piping Diameter; 9 in. Body Length x 4 in. Body Width x 4 in. Body Height; 3 in. ID x 3 in. OD; Round Body Shape; Spun Body Type; Bolt-On Inlet and Outlet Attachment; Stainless Steel Material; Pre Converter; Includes Clamp, Hangers and Gasket; 49.38 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
Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 8 Cyl 6.6L, OEM Grade Series
Part Number: M6660121
Guaranteed to Fit
$506.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.6L
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.6L
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.6L
  • 2006 GMC Sierra 3500 SLT 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
Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), DIESEL, With Duramax Engine, 8 Cyl 6.6L, HM Grade Series
Part Number: M6660120
Guaranteed to Fit
$506.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.6L DIESEL, With Duramax Engine
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.6L DIESEL, With Duramax Engine
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.6L DIESEL, With Duramax Engine
  • 2006 GMC Sierra 3500 SLT 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
Front Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required, California Series
Part Number: M66447109
Guaranteed to Fit
$523.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 6Gmxk06.0388; Cutting And Welding Required
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 6Gmxk06.0388; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 6Gmxk06.0388; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SLT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 6Gmxt08.1201; Eng Fam No: 6Gmxt08.1203; Cutting And Welding Required
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 6Gmxk06.0388; Cutting And Welding Required
Product Details
Location : FrontEmissions : 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
Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), HM Grade Series
Part Number: M6660502
Guaranteed to Fit
$855.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.6L
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.6L
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.6L
  • 2006 GMC Sierra 3500 WT 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 : 54.25 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 Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, EO# D-193-145; Eng Fam No: 6Gmxh06.0583; Eng Fam No: 6Gmxh06.0593; Without Pre-Converter, California Series
Part Number: M664551642
Guaranteed to Fit
$1,537.00
Vehicle Fitment
  • 2006 GMC Sierra 3500 SLT 8 Cyl 6.0L EO# D-193-145; Eng Fam No: 6Gmxh06.0583; Eng Fam No: 6Gmxh06.0593; Without Pre-Converter
  • 2006 GMC Sierra 3500 SL 8 Cyl 6.0L EO# D-193-145; Eng Fam No: 6Gmxh06.0583; Eng Fam No: 6Gmxh06.0593; Without Pre-Converter
  • 2006 GMC Sierra 3500 SLE 8 Cyl 8.1L EO# D-193-145; Eng Fam No: 6Gmxh08.1501; Without Pre-Converter
  • 2006 GMC Sierra 3500 SL 8 Cyl 8.1L EO# D-193-145; Eng Fam No: 6Gmxh08.1501; Without Pre-Converter
  • 2006 GMC Sierra 3500 SLT 8 Cyl 8.1L EO# D-193-145; Eng Fam No: 6Gmxh08.1501; Without Pre-Converter
  • 2006 GMC Sierra 3500 WT 8 Cyl 6.0L EO# D-193-145; Eng Fam No: 6Gmxh06.0583; Eng Fam No: 6Gmxh06.0593; Without Pre-Converter
  • 2006 GMC Sierra 3500 WT 8 Cyl 8.1L EO# D-193-145; Eng Fam No: 6Gmxh08.1501; Without Pre-Converter
  • 2006 GMC Sierra 3500 SLE 8 Cyl 6.0L EO# D-193-145; Eng Fam No: 6Gmxh06.0583; Eng Fam No: 6Gmxh06.0593; Without Pre-Converter
Product Details
Location : Driver SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Converter Quantity; 3 in. Main Piping Diameter; 8.75 in. Body Length x 5 in. Body Width x 5 in. Body Height; 2.5 in. ID x 3 in. OD; Round Body Shape; Spun Body Type; Bolt-On Inlet Attachment; Clamp-On Outlet Attachment; Stainless Steel Material; Pre and Post Converter; Includes Clamp, Hangers and Gasket; 53 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-145Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow 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 : California SeriesTube Material : Stainless Steel
Page 1 of 4 | Showing 1 - 15 of 54 results

Popular Products

Helpful Automotive Resources

P0430 Code: Catalyst System Efficiency Below Threshold  (Bank 2)
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)In most cases, a vehicle with an inefficient catalytic converter will continue to run just fine. But if the converter is obstructed internally, it can cause poor engine performance and may even damage the engine in the long run.
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Bank 1 is the side of the engine where the #1 cylinder is located. P0042 code is set when your car’s PCM determines a potential problem with the heater element circuit of the oxygen sensor.
Can You Drive Without a Catalytic Converter?
Can You Drive Without a Catalytic Converter?Technically, yes. Older cars ran just fine before catalytic converters became commonplace in the 1970s. So, if your question is whether your car will run without one, then it most certainly will. But the other question you should be asking is—should you risk it?  Removing or disabling the catalytic converter could
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)The PCM may disable the misfiring cylinder or cylinders in order to prevent further damage to the engine. Code P0316 is often listed in addition to one or more of the P0300 series codes that are associated with the misfiring cylinder/s.
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)The Bank 1 portion of the code refers to the side of the engine with the number one cylinder. Sensor 1 refers to the upstream O2 sensor.
How to Tell If the Catalytic Converter is Clogged
How to Tell If the Catalytic Converter is CloggedA clogged catalytic converter will present symptoms, while a chemically failed cat con that’s not clogged typically just illuminates the check engine light or malfunction indicator lamp (MIL). Also, if the cat con that just fails chemically but doesn’t clog is not the light-off cat con (the cat con closest