AP Exhaust 643111 Catalytic Converter
OE Quality 60-Day Returns
AP Exhaust

AP Exhaust 643111 Catalytic Converter

Brand AP Exhaust 643111
Body Material Stainless steel
Clamp Qty 1
Inlet Gasket Yes
Inlet Hardware None
Inlet Hardware Yes
Inlet Type A 2 bolt welded flange
O2 Sensor Ports 4
Outlet Gasket None
Outlet Hardware None
Outlet Hardware Yes
Outlet Type A 2 bolt welded flange
Overall Length (IN) 82.5
Substrate Material Ceramic
Type Federal / epa direct-fit
Fits Scion · 5 vehicles

Direct-fit replacement. Built to exact OE dimensions for straightforward installation.

Stainless steel body. Helps resist corrosion for long-term durability.

Ceramic substrate. Engineered for efficient converter performance.

$533.38Free 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 $533.38
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Catalytic Converter options

AP Exhaust 643111 Catalytic Converter

AP Exhaust 643111 is a Federal / EPA direct-fit catalytic converter built for the 2008-2012 Scion xD. It uses a stainless steel body, a ceramic substrate, and OE-style 2-bolt welded flange connections for a direct replacement on the specified application.

Key Features

  • Federal / EPA direct-fit catalytic converter
  • Fits 2008-2012 Scion xD
  • Stainless steel body for corrosion resistance
  • Ceramic substrate material
  • OE-dimensioned fitment for the listed application
  • 4 O2 sensor ports
  • 2-bolt welded flange inlet and outlet design
  • Inlet gasket included

Product Details

Built for the Scion xD, part number 643111 is engineered around AP Exhaust’s ARISTO substrate chemistry and modern manufacturing methods to support efficient converter loading and consistent fitment. The converter is produced to OE dimensions, which helps maintain proper alignment with the exhaust system on the 2008-2012 Scion xD. If you are searching for a direct-fit catalytic converter for 2008-2012 Scion xD, AP Exhaust 643111 provides the correct configuration for the listed Federal and California emissions application notes.

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

What It Helps Address

  • Failed catalytic converter efficiency codes
  • Restricted exhaust flow from a worn converter
  • Emissions test failure related to converter performance
  • Exhaust leaks at flange connection points
  • Check engine light concerns tied to catalyst monitoring

Installation Notes

Verify the vehicle’s emissions requirements before installation. This converter is listed for 2008-2012 Scion xD and uses 2-bolt welded flange inlet and outlet connections with an inlet gasket noted in the attributes. Confirm O2 sensor port placement and exhaust alignment before final tightening to ensure proper fit on the Scion xD.

Quality Assurance

AP Exhaust uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to exact OE dimensions and fitment. The ARISTO substrate chemistry is used to support efficient converter loading and consistent performance for the specified application.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2012ScionxD1.8LL4N/ADirect Fit; 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.
2011ScionxD1.8LL4N/ADirect Fit; 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.
2010ScionxD1.8LL4N/ADirect Fit; 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.
2009ScionxD1.8LL4N/ADirect Fit; 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.
2008ScionxD1.8LL4N/ADirect Fit; 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.