Walker 70404 Catalytic Converter - Right

Brand Walker 70404
Position Right
Mounting Hardware Included No
Universal Or Specific Fit Specific
Grade Type Regular
Body Shape Round
Inlet Inside Diameter 2.5
Inlet Inside Diameter 3
Body Height 4
Body Length 13
Body Width 4
Body Material Stainless steel
Outlet Quantity 1
California Air Resources Board (CARB) Certified No
Overall Length 42.5
Air Tube No
Air Tube Count No
Converter Quantity 1
Inlet 1 Inside Diameter 2.5
Inlet 1 Type Pipe connection
Inlet 2 Inside Diameter 3
Inlet 2 Type 2 bolt loose flange with spherical flare
Inlet Quantity 2
Inlet Type 2 bolt loose flange with spherical flare
Inlet Type Pipe connection
Outlet 1 Outside Diameter 3.625
Outlet 1 Type 2 bolt loose flange with spherical flare
Outlet Outside Diameter 3.625
Outlet Type 2 bolt loose flange with spherical flare
Oxygen Sensor Location Pre catalyst and midbed
Substrate Material Ceramic
Product line EPA
Fits Ford · 26 vehicles

Direct-fit design. Specific fit helps simplify installation with no modifications needed.

Stainless steel body. Built with a ceramic substrate for durable exhaust performance.

EPA-compliant converter. Meets EPA standards while delivering premium performance.

Cross-references AP Exhaust 645771, Walker Exhaust 52592 and 21-469 for the same application. See all 5.

$427.50Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $427.50
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker EPA Direct-Fit Catalytic Converter

Walker EPA 70404 is a direct-fit catalytic converter built for specific applications and engineered to meet EPA standards. It is designed for 2015-2020 Ford F-150 right-side applications, with fitment for 2015-2019 Ford F-150 right and 2020 Ford F-150 right.

The Walker EPA product line focuses on direct-fit replacement converters for import and domestic OBDII vehicles, combining application-specific fitment with emissions compliance for the listed federal-emissions vehicles.

Key Features

  • Direct-fit, specific-fit catalytic converter for the right side
  • EPA-compliant design for listed federal-emissions applications
  • Stainless steel body construction for corrosion resistance
  • Ceramic substrate material
  • Round body shape with 42.5-inch overall length
  • Inlet configuration includes 2.5-inch pipe connection and 3-inch 2-bolt loose flange with spherical flare
  • Outlet uses a 2-bolt loose flange with spherical flare and 3.625-inch outside diameter
  • Oxygen sensor locations positioned pre-catalyst and midbed

Detailed Description

Walker 70404 is a direct-fit catalytic converter for the right side of select Ford F-150 models. It uses a stainless steel body, ceramic substrate, and application-specific inlet and outlet geometry to match the listed exhaust configuration. This part cross-references Walker Exhaust 52592 for the same application.

For buyers searching for a 2015-2019 Ford F-150 right catalytic converter, a 2020 Ford F-150 right catalytic converter, or Walker 70404 replacement exhaust emissions hardware, this unit is built around the confirmed fitment and emissions requirements shown above. It is not CARB certified and is listed for EPA federal-emissions use only.

What It Helps Address

  • Failed catalytic converter efficiency codes
  • Restricted exhaust flow from a worn converter
  • Emissions test failures on listed federal-emissions vehicles
  • Rattling or deteriorated substrate inside the converter
  • Exhaust leaks at the converter connection points

Installation Notes and Tips

Confirm the vehicle is a listed right-side Ford F-150 application before ordering. Exhaust gasket is recommended during installation. Verify inlet and outlet flange style, oxygen sensor locations, and exhaust routing against the original unit to ensure proper alignment on the 2015-2020 Ford F-150 right-side exhaust system.

Quality Assurance

Walker EPA converters are built for direct replacement on the specified OBDII vehicle applications and are manufactured to comply with EPA standards for the listed fitment. This part number is 70404.

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2020FordF-150SSV3.5LV6RightEPA
2019FordF-150SSV3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2019FordF-150Police Responder3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2019FordF-150Lariat3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2019FordF-150XLT3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2019FordF-150Platinum3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2019FordF-150King Ranch3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2019FordF-150XL3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2019FordF-150Limited3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2018FordF-150SSV3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2018FordF-150Police Responder3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2018FordF-150Lariat3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2018FordF-150XLT3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2018FordF-150Platinum3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2018FordF-150King Ranch3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2018FordF-150XL3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2018FordF-150Limited3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2017FordF-150SSV3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2017FordF-150Lariat3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2017FordF-150XLT3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2017FordF-150Platinum3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2017FordF-150King Ranch3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2017FordF-150XL3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2017FordF-150Limited3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2016FordF-150—3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
2015FordF-150—3.5LV6RightFits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 645771Walker Exhaust — 5259221-46921-475645169