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Walker Catalytic Converters
Make sure your vehicle passes its emissions test so that you can get back on the road with Walker catalytic converters. Luckily, CarParts.com has a wide selection of Walker catalytic converters made for easy installation and optimal performance. Engineered with premium stainless steel and equipped with OE-grade hangers, flanges, and brackets, Walker catalytic converters are made to last. If you’re looking for parts for urgent repairs, we’ve got your back. Shop now and get your catalytic converter in as fast as two business days.
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Part Number: WK83401
Vehicle Info Required to Guarantee Fit
$264.99
Product Details
Location : Front Or Rear, Driver Or Passenger Side, Front, Driver Or Passenger Side, Front Or Rear, Rear, Driver Or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Inlet Quantity; (1) Outlet Quantity; 2 in. Inlet Diameter A; 2 in. Outlet Diameter A; 4 in. Converter Body Height; 4 in. Width; 8 in. Body Length; Stainless Steel Body Material; Ceramic Substrate Material; Round Body Shape; Pipe Inlet and Outlet Connection Type; 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: WK50511
Vehicle Info Required to Guarantee Fit
$456.49
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 50.5 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 Walker 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: WK84129
Vehicle Info Required to Guarantee Fit
$849.99
Product Details
Location : FrontEmissions : CARB and Federal EPA Standards, 50-state LegalProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-72Warranty : 5-year or 50,000-mile Walker 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: WK84124
Vehicle Info Required to Guarantee Fit
$547.49
Product Details
Location : FrontEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 4.5 in. Body Length; 4.02 in. Body Width; 4.02 in. Body Height; 1 Inlet Quantity; 8 Bolt Welded Flange Inlet Type; 1 Outlet Quantity; 2 Bolt Welded Flange Outlet Type; Stainless Steel Material; Ceramic Substrate Material; Round Body Shape; Includes Mounting HardwareType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-72Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Walker 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: WK82895
Vehicle Info Required to Guarantee Fit
$654.99
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : 19.13 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-65Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Walker 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: WK82894
Vehicle Info Required to Guarantee Fit
$563.99
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : 34 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-64Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Walker 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: WK50497
Vehicle Info Required to Guarantee Fit
$664.99
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 : 10 in. Body Length; 6 in. Body Width; 4.5 in. Body Height; 3.63 in. Inlet ID; 1 Outlet Quantity; 3 in. Outlet OD; Spherical Ball Outlet Type; Stainless Steel Material; Standard Oval Body Shape; Does not include Mounting Hardware; 52.5 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 : 25,000-mile Walker limited warranty on catalytic performance and 5-year or 50,000-mile structural integrity 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: WK82896
Vehicle Info Required to Guarantee Fit
$526.49
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : 29 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-64Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Walker 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: WK50482
Vehicle Info Required to Guarantee Fit
$976.49
Product Details
Location : Driver And 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 : 47.13 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 Walker 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: WK83447
Vehicle Info Required to Guarantee Fit
$533.99
Product Details
Location : Driver SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 13 in. Body Length; 4.02 in. Body Width; 4.02 in. Body Height; 1 Inlet Quantity; 3 Bolt Welded Flange Inlet Type; 1 Outlet Quantity; 1.9 in. Outlet OD; 2 Bolt Welded Flange Outlet Type; Stainless Steel Material; Round Body Shape; Does not include Mounting Hardware; 56.75 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-69Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Walker 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: WK16827
Vehicle Info Required to Guarantee Fit
$392.49
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 7.25 in. Body Length; 4 in. Body Width; 4 in. Body Height; 1 Inlet Quantity; 4 Bolt Welded Flange Inlet Type; 1 Outlet Quantity; 3 Bolt Welded Flange Outlet Type; Stainless Steel Material; Round Body Shape; Does not include Mounting Hardware; 18.5 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 : 25,000-mile Walker limited warranty on catalytic performance and 5-year or 50,000-mile structural integrity 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: WK83454
Vehicle Info Required to Guarantee Fit
$502.99
Product Details
Location : Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 13 in. Body Length; 4.02 in. Body Width; 4.02 in. Body Height; 1 Inlet Quantity; 3 Bolt Welded Flange Inlet Type; 1 Outlet Quantity; 1.92 in. Outlet OD; 2 Bolt Welded Flange Outlet Type; Stainless Steel Material; Round Body Shape; Does not include Mounting Hardware; 41.5 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-69Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Walker 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: WK55721
Vehicle Info Required to Guarantee Fit
$473.49
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)Restricted 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 Walker 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: WK16788
Vehicle Info Required to Guarantee Fit
$250.99
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 : 6.25 in. Body Length; 4 in. Body Width; 4 in. Body Height; 1 Inlet Quantity; 3 Bolt Welded Flange Inlet Type; 1 Outlet Quantity; 2 Bolt Welded Flange Outlet Type; Stainless Steel Material; Round Body Shape; Does not include Mounting Hardware; 14 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 : 25,000-mile Walker limited warranty on catalytic performance and 5-year or 50,000-mile structural integrity 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, Driver Side, Front Or Rear, Driver Or Passenger 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.
Page 1 of 74 | Showing 1 - 15 of 1098 results
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Product Questions & Answers
Q:What is the pipe diameter on this cat?
Dana H.
A:BEST ANSWERHi Dana, I'm more than happy to help. The inlet and outlet pipe inside diameter of this item are 3 inches. You can take advantage of our 30-day post-purchase Price Match guarantee. Click this link to order this part: https://www.carparts.com/catalytic-converter/walker/wk83404?can=CPAP3648_CSQA_20221008
I hope this helps. Enjoy shopping. Show less
Aldrin P.
1 Question, 1 AnswerView all Q&As >
Q:2015 challenger 3.6 vin 2C3CDZAG2FH793599 will ur part walker 55721 fit? Have a great day Show Less
Gilberto R.
A:BEST ANSWERHi Gibby, thanks for initiating contact. Choosing the correct catalytic converter can be a bit challenging nowadays. There is information that needs to be clarified which are not in the VIN like the emission specifications and where the vehicle is registered. Check the Vehicle Emission Control Information sticker, usually found underneath the hood, to see if it matches the emission control specifications. I suggest calling our parts specialists at 1-866-529-0412 for assistance so we can help you look for the right part. Have a good one. Show less
Grace G.
1 Question, 1 AnswerView all Q&As >
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Helpful Automotive Resources
What are the Best Catalytic Converters?Aftermarket replacement catalytic converters are as durable as their OE counterparts but they are more affordable, which means you can get the same quality while saving money at the same time. Check out high-quality replacement catalytic converters at CarParts.com today.
7 Best Catalytic Converters on the Market Today
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)P0430 is a diagnostic trouble code (DTC) for “Catalyst System Efficiency Below Threshold (Bank 2).” It warns about a problem with the catalytic converter mounted near engine bank 2 (the side of the engine opposite the number one cylinder).
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Diagnostic trouble code (DTC) P0042 stands for “HO2S Heater Control Circuit Bank 1 Sensor 3.” It is logged when the powertrain control module(PCM) detects a possible issue with the heater circuit for the third sensor downstream from the engine on bank 1.