HomeWalker 84227 Catalytic Converter - Left
Part #: 84227

Walker 84227 Catalytic Converter - Left

CalCat, Left
⚙️ 9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦CalCat, Left
🚗Fitment: Ford, Lincoln, and Mercury, Crown Victoria, Grand Marquis, and Town Car
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Overview of Walker CalCat Catalytic Converter 84227

The Walker CalCat Catalytic Converter 84227 is designed specifically for select Ford, Lincoln, and Mercury vehicles, including the Crown Victoria, Grand Marquis, and Town Car models from 2009 to 2011. This catalytic converter meets California Air Resources Board (CARB) certification standards, ensuring compliance with strict emissions regulations.

  • Specific fit for Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis (2009-2011)
  • CARB certified for emissions compliance
  • Stainless steel body with a standard oval shape
  • 10-inch body length with overall length of 36.625 inches
  • 2 bolt loose flange inlet with spherical flare and 2 bolt welded flange outlet
  • Ceramic substrate material for effective catalytic conversion
  • Oxygen sensor located post catalyst for accurate emissions monitoring

Walker CalCat Product Line Details

The CalCat line by Walker focuses on providing catalytic converters that meet regulatory requirements while maintaining durability and performance. The 84227 model is part of this line, offering a specific fit and CARB certification to support emissions control in vehicles such as the Ford Crown Victoria and Lincoln Town Car. CalCat converters utilize quality materials like stainless steel and ceramic substrates to ensure longevity and effective pollutant reduction.

Product Features and Specifications

This catalytic converter features a stainless steel body shaped in a standard oval design, measuring 10 inches in body length and 36.625 inches overall. The inlet uses a 2 bolt loose flange with a spherical flare, while the outlet is equipped with a 2 bolt welded flange, both designed for secure and precise installation. The ceramic substrate inside facilitates the conversion of harmful exhaust gases into less harmful emissions. The oxygen sensor is positioned post catalyst to provide accurate feedback for engine management systems.

Applications and Common Issues Addressed

  • Reduces harmful emissions to meet CARB standards
  • Replaces clogged or damaged catalytic converters causing poor engine performance
  • Resolves check engine light issues related to catalyst efficiency
  • Improves exhaust flow and reduces backpressure
  • Supports compliance with emissions inspections for 2009-2011 Ford Crown Victoria and similar models

Installation Notes and Tips

Installation requires compatibility with the vehicle’s existing exhaust system flanges: a 2 bolt loose flange with spherical flare at the inlet and a 2 bolt welded flange at the outlet. This part is a specific fit and does not include mounting hardware, so ensure all necessary bolts and gaskets are available prior to installation. Proper oxygen sensor placement post catalyst is critical for accurate emissions monitoring.

Quality Assurance and Warranty

The Walker CalCat 84227 catalytic converter is manufactured with durable stainless steel and a ceramic substrate to provide reliable emissions control. It is CARB certified, meeting stringent environmental standards. Warranty details should be confirmed with the product documentation or manufacturer, as they may vary by application.

BrandWalker
Part Number84227
PositionCalCat, Left
Mounting Hardware IncludedNo
Universal Or Specific FitSpecific
Grade TypeRegular
Body ShapeStandard oval
Inlet Type2 bolt loose flange w/spherical flare
Outlet Type2 bolt welded flange
Body Length10
Body Length10.000
Inlet Quantity1
Body MaterialStainless steel
Outlet Quantity1
California Air Resources Board (CARB) CertifiedYes
Substrate MaterialCeramic
Overall Length36.625
Air TubeNo
Air Tube CountNo
Body ShapeStandard oval
Converter Quantity2
Inlet 1 Type2 bolt loose flange with spherical flare
Inlet Type2 bolt loose flange with spherical flare
Max Year Covered2011
Min Year Covered2009
Most Popular Make / ModelFord crown victoria
Most Popular Year2011
Outlet 1 Outside Diameter1.99
Outlet 1 Outside Diameter1.990
Outlet 1 Type2 bolt welded flange
Outlet Outside Diameter1.99
Outlet Type2 bolt welded flange
Oxygen Sensor LocationPost catalyst

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011FordCrown Victoria4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) BFMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat
2011LincolnTown Car4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) BFMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat
2011MercuryGrand Marquis4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) BFMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat
2010FordCrown Victoria4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) AFMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat
2010LincolnTown Car4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) AFMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat
2010MercuryGrand Marquis4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) AFMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat
2009FordCrown Victoria4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) 9FMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat
2009LincolnTown Car4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) 9FMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat
2009MercuryGrand Marquis4.6LV8LeftCARB Executive Order D-182-72; Engine Family Number (EFN) 9FMXV04.6VDF; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional Part(s) Needed To Complete Installation: 31336; Direct Fit Type; CalCat

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.