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GMC Sierra 1500 HD Catalytic Converters
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Part Number: M66447209
Vehicle Info Required to Guarantee Fit
$390.00
Product Details
Location : Rear, Driver Or Passenger Side, Rear, Rear, 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: 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.
Part Number: M6699009HM
Vehicle Info Required to Guarantee Fit
$222.00
Product Details
Location : Rear, Driver Or Passenger Side, Rear, Passenger Side, Front, Driver Or 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: 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.
Part Number: M6699209HM
Vehicle Info Required to Guarantee Fit
$178.00
Product Details
Location : Front Or Rear, Driver Or Passenger Side, Front Or Rear, Passenger Side, Rear, Front Or Rear, Passenger Side, Front Or Rear, Driver Side, Front, Driver Or Passenger Side, 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/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: 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.
Part Number: M6699206HM
Vehicle Info Required to Guarantee Fit
$178.00
Product Details
Location : Center Or Rear Rearward, Front Or Rear, Driver Or Passenger Side, Rear Or Rear Rearward, Rear, Rear, Passenger Side, Front, Driver Or Passenger Side, Driver Side, Rear, Driver Or Passenger Side, Front, Driver Side, Rear, Driver Side, Center, Front, Driver Or Passenger Side, Front Or Rear, Front, Passenger Side, Passenger Side, Rear, Rearward Or Rear, Front Or Rear, Driver Side, Rear, 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 : 2.25 in. Inlet/2.5 in. 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: 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.
Part Number: M6651009
Vehicle Info Required to Guarantee Fit
$231.00
Product Details
Location : Rear, Passenger Side, Driver Or 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: 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.
Part Number: M6624148
Vehicle Info Required to Guarantee Fit
$511.00
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 : 27.25 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: 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.
Part Number: M66447109
Vehicle Info Required to Guarantee Fit
$523.00
Product Details
Location : Front, Driver Side, Front, Driver Or Passenger Side, 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: 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.
Part Number: M6693622
Vehicle Info Required to Guarantee Fit
$546.00
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; 50.5 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: 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.
Part Number: M66445009
Vehicle Info Required to Guarantee Fit
$554.00
Product Details
Location : Front Or Rear, Driver Or Passenger Side, Front, Driver Or Passenger Side, Front Or Rear, Driver Or Passenger Side, Driver SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 3 in. Inlet/Outlet; 16 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-100Gasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6693623
Vehicle Info Required to Guarantee Fit
$623.00
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; 81 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: 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.
Part Number: M66447270
Vehicle Info Required to Guarantee Fit
$1,035.00
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: 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.
Part Number: WK83404
Vehicle Info Required to Guarantee Fit
$289.99
Product Details
Location : Front Or Rear, Driver Or Passenger Side, Front, Driver Side, Front, Driver Or Passenger Side, Front, Driver Or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 12 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-69Gasket Included : Without GasketWarranty : 5-year or 50,000-mile Walker limited warrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: APE645454
Vehicle Info Required to Guarantee Fit
$425.99
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 : 30.5 in. Overall Length; 2 Bolt Welded Flange Inlet Type A; 2.85 in. OD Pipe Outlet Type A; Ceramic Substrate MaterialType : 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 AP Exhaust limited warranty on converter body and 25,000-mile limited warranty on emissionsProp 65 Warning :
WARNING: 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.
Part Number: EAST70857
Vehicle Info Required to Guarantee Fit
$241.99
Product Details
Location : Rear, Driver Or Passenger Side, Front, Driver Side, Front, Driver Or Passenger Side, Front Or Rear, Rear, Passenger Side, Rear, Passenger Side, Front, Driver Or Passenger Side, 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 and Outlet Diameter; Without O2 Sensor Port; 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 : 5-year or 50,000-mile Eastern limited warrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: APE645455
Vehicle Info Required to Guarantee Fit
$361.49
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 : 57 in. Overall Length; 3 Bolt Welded Flange Inlet Type A; 3 in. OD Pipe Outlet Type A; Ceramic Substrate MaterialType : 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 AP Exhaust limited warranty on converter body and 25,000-mile limited warranty on emissionsProp 65 Warning :
WARNING: 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.
Page 1 of 3 | Showing 1 - 15 of 45 results
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Q:Need one for calif?
Richard W.
A:BEST ANSWERHi Richard, thank you for reaching out. Kindly call our parts team at 1-866-529-0412, so we can help you look for the correct catalytic converter based on your complete vehicle information. Hope to hear from you soon. Show less
Aldrin P.
1 Question, 1 AnswerView all Q&As >
Q:Can this be used in the front or rear?
chris p.
A:BEST ANSWERHi Chris,
This is for the front, driver side applicable to several Chevrolet models.
To check the fitment please use our Vehicle Selector — which can be found towards the top of the homepage as well as all categories, search results, and product pages — can help verify if a part will fit your specific application.
To enter your application, simply select your vehicle’s year, make, model, sub-model, and engine type and click “Go.” Once your application is selected, you’ll see a “Guaranteed to Fit” badge if the part will fit, and we recommend that you also double-check Your Vehicle Fit Details as well as the Vehicle Fitment Information table on the product page. Show less
Aldrin P.
2 Questions, 1 AnswerView all Q&As >
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Helpful Automotive Resources
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)A failing catalytic converter breaks down less pollutants in the exhaust, resulting in lower oxygen (O2) levels overall. The downstream oxygen sensor detects the change and informs the vehicle’s computer. In turn, the computer activates the check engine light and logs the appropriate OBD-II trouble code for diagnosis by a
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3When there are only 3 O2 sensors it’s typically because there’s only one catalyst being monitored, and “Bank 1” is the default designation when there’s only one sensor in a category.
Diagram showing 3 oxygen sensors | Image Source: Richard McCuistian
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)To learn why O2 sensors need to be heated, you may read our explanation here.