AP Exhaust 644055 Catalytic Converter - Front
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AP Exhaust

AP Exhaust 644055 Catalytic Converter - Front

Brand AP Exhaust 644055
Position Front
Body Material Stainless steel
Inlet Gasket Yes
Inlet Hardware Yes
Inlet Type A 2 bolt welded flange
Inlet Type A 2 bolt welded flange w/ spherical flare
O2 Sensor Ports 1
Outlet Gasket Yes
Outlet Hardware Yes
Outlet Type A 2 bolt welded flange
Overall Length (IN) 15
Substrate Material Ceramic
Type Federal / epa direct-fit
Type Federal / epa direct-fit precat
Fits Mitsubishi · 13 vehicles

Direct-fit design. Built to OE dimensions for accurate replacement fitment.

Ceramic substrate. Supports efficient converter performance in exhaust service.

Stainless steel body. Adds corrosion resistance for demanding exhaust conditions.

$393.35Free shipping
In stock · usually ships same day before 1pm CST
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Overview

AP Exhaust 644055 is a federal/EPA direct-fit catalytic converter built for precise OE dimensions and fitment. It uses a ceramic substrate and stainless steel body construction to support efficient exhaust flow and emissions control.

Fits 2008-2017 Mitsubishi Lancer, front. Fits 2009-2011 Mitsubishi Lancer, front.

Key Features

  • Federal/EPA direct-fit design for straightforward replacement.
  • Ceramic substrate material for efficient converter performance.
  • Stainless steel body for corrosion resistance in exhaust service.
  • One O2 sensor port for the specified application.
  • Inlet and outlet gaskets and hardware are listed in the product attributes.
  • AP Exhaust 644055 is built to OE dimensions for accurate fitment.

Detailed Description

AP Exhaust 644055 is engineered as a direct-fit catalytic converter for Mitsubishi Lancer applications with front mounting. The design combines a ceramic substrate with AP Emissions Technologies' ARISTO substrate chemistry and advanced manufacturing methods to deliver efficient loading and consistent converter construction. The stainless steel body and welded flange connections support a durable exhaust repair solution, while the OE-dimensioned layout helps maintain proper alignment during replacement. This part number, 644055, is listed for 2008-2017 Mitsubishi Lancer front applications, with a separate 2009-2011 California-emissions listing also shown in the fitment data. AP Exhaust 644055 is a practical choice when replacing a worn or restricted converter on a Mitsubishi Lancer.

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

What It Is Used For

  • Replacing a damaged or inefficient catalytic converter.
  • Restoring exhaust flow when the converter is restricted.
  • Addressing emissions-related drivability or inspection concerns.
  • Maintaining OE-style fitment during exhaust repair.
  • Supporting front-position exhaust service on the listed Mitsubishi Lancer applications.

Installation Notes and Tips

Verify the emissions designation and state restrictions before ordering, since the fitment notes include Federal and California emissions listings with sale/use limitations in certain states. Confirm the inlet and outlet flange style, O2 sensor port count, and overall length against the original part before installation. Use the listed fitment exactly as shown for the Mitsubishi Lancer front application.

Quality Assurance

AP Emissions Technologies states that its manufacturing process uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to exact OE dimensions and fitment.

Related reading

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2017MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2016MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2015MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2014MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2013MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2012MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2011MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2011MitsubishiLancer2.4LL4FrontDirect Fit; SULEV Emissions; California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.
2010MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2010MitsubishiLancer2.4LL4FrontDirect Fit; SULEV Emissions; California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.
2009MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2009MitsubishiLancer2.4LL4FrontDirect Fit; SULEV Emissions; California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.
2008MitsubishiLancer2.0LL4FrontDirect Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.