Walker
CalCat

Walker 84222 Catalytic Converter - Rear

Brand Walker 84222
Position Rear
Mounting Hardware Included No
Universal Or Specific Fit Specific
Grade Type Premium
Body Shape Round
Inlet Type 2 bolt welded flange
Outlet Type Pipe connection
Body Height 4.000
Body Length 8.000
Body Width 4.000
Inlet Quantity 1
Body Material Stainless steel
Outlet Inside Diameter 2.000
Outlet Quantity 1
California Air Resources Board (CARB) Certified Yes
Overall Length 36.210
New York Certified Yes
Shape Round
Product line CalCat
Fits Mazda · 2 vehicles

OE-style fit. Precise replacement for a specific application.

CARB certified. Built to meet California emissions standards.

Stainless steel construction. Helps resist corrosion for lasting durability.

$276.00Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $276.00
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker CalCat Catalytic Converter for Mazda 3

Walker CalCat Part Number 84222 is a premium, vehicle-specific catalytic converter built for emissions compliance and OE-style fit. It is designed for the rear position on 2012-2013 Mazda 3 applications and is CARB certified for California and New York use.

Key Features

  • Fits 2012-2013 Mazda 3, rear
  • Walker CalCat product line for CARB-compliant emissions service
  • Specific-fit design for direct application matching
  • Round stainless steel body for durability in exhaust service
  • 2-bolt welded flange inlet with pipe connection outlet
  • CARB certified and New York certified
  • Part Number 84222 for catalog and service identification

Product Details

Walker CalCat Part Number 84222 is a manifold-style catalytic converter engineered for OBDII and non-OBD applications within the CalCat line, with this listing matched to the rear exhaust position on the 2012-2013 Mazda 3. The stainless steel body, round shape, 2-bolt welded flange inlet, and 2.000-inch outlet inside diameter support a precise OE-style exhaust connection. Walker CalCat focuses on emissions service parts that are validated for regulatory compliance, making this unit a direct choice for Mazda 3 rear catalytic converter replacement where CARB certification is required.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Replacement Issues

  • Failed emissions test due to catalyst efficiency concerns
  • Check engine light related to rear catalytic converter performance
  • Exhaust leakage at the converter inlet or outlet connection
  • Corrosion or physical damage to the converter body
  • Restricted exhaust flow from a worn catalytic substrate

Installation Notes

Verify the rear position and confirm the 2012-2013 Mazda 3 application before installation. Match the 2-bolt welded flange inlet and pipe connection outlet to the existing exhaust layout, and inspect adjoining pipes, gaskets, and hangers for wear before assembly. Professional installation is recommended to ensure proper sealing and emissions-system function.

Quality Assurance

Walker CalCat catalytic converters are designed, tested, and validated for CARB compliance, with this part certified for California and New York requirements. Part Number 84222 is built to support emissions-system service with an OE-style fit and application-specific construction.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2013Mazda32.0LL4RearCalCat
2012Mazda32.0LL4RearCalCat