AP Exhaust 643081 Catalytic Converter
OE Quality 60-Day Returns
AP Exhaust
 Direct Fit Converter

AP Exhaust 643081 Catalytic Converter

Brand AP Exhaust 643081
Body Material Stainless steel
Inlet Gasket Yes
Inlet Hardware None
Inlet Type A 2 bolt welded flange
O2 Sensor Ports 1
Outlet Gasket Yes
Outlet Hardware None
Outlet Type A 2 bolt welded flange w/ gasket stub
Overall Length (IN) 86.5
Substrate Material Ceramic
Type Federal / epa direct-fit
Product line Direct Fit Converter
Fits Toyota · 9 vehicles

Direct-fit converter. Built to exact OE dimensions for easier installation and fitment.

Stainless steel body. Helps resist corrosion in demanding exhaust conditions.

Ceramic substrate. Supports efficient converter performance with advanced loading.

Cross-references 17410-21B00 for the same application. See all 1.

$335.94Free 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 $335.94
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

Direct-Fit Catalytic Converter for Toyota Yaris

AP Exhaust Direct Fit Converter 643081 is a Federal / EPA direct-fit catalytic converter built for precise OE-style fitment on select Toyota Yaris applications. It uses a ceramic substrate and stainless steel body construction to support efficient exhaust flow and emissions control in a direct replacement format.

Key Features

  • Federal / EPA direct-fit catalytic converter
  • Stainless steel body for corrosion resistance
  • Ceramic substrate material
  • 2-bolt welded flange inlet and outlet design
  • Includes inlet gasket and outlet gasket
  • 1 O2 sensor port
  • Overall length: 86.5 inches
  • AP Exhaust Direct Fit Converter line focuses on OE-dimensioned replacement converters for accurate fitment

Fitment Details

  • Fits 2015-2017 Toyota Yaris, Federal and California Emissions; Direct Fit Converter.
  • Fits 2014 Toyota Yaris, Direct Fit; Japan-built only; Federal and California Emissions. Not for sale or use on vehicles licensed in CA, CO, ME, or NY. Aftermarket is a 2-piece design.
  • Fits 2012-2014 Toyota Yaris, Direct Fit; Complete Assembly; Federal and California Emissions. Not for sale or use on vehicles licensed in CA, CO, ME, or NY.
  • Fits 2012-2013 Toyota Yaris, Direct Fit; Federal and California Emissions. Not for sale or use on vehicles licensed in CA, CO, ME, or NY. Aftermarket is a 2-piece design.

What This Part Helps Address

  • Failed or inefficient catalytic converter operation
  • Exhaust restriction caused by a damaged converter core
  • Check engine light concerns related to catalyst efficiency
  • Exhaust leaks at flange connections when the original unit is worn
  • Fitment issues from a converter that no longer matches OE dimensions

Installation Notes

Verify the vehicle’s emissions configuration, build origin, and state restrictions before ordering. This converter uses 2-bolt welded flange connections with gasket stubs and includes inlet and outlet gaskets, but no inlet or outlet hardware is listed. Confirm the single O2 sensor port location and compare the original assembly to the 86.5-inch overall length before installation. Part number 643081 cross-references 17410-21B00 for the same application.

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 engineered for efficient loading and converter performance while supporting competitive replacement value.

Related reading

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2017ToyotaYaris1.5LL4N/AFederal and California Emissions; Direct Fit Converter
2016ToyotaYaris1.5LL4N/AFederal and California Emissions; Direct Fit Converter
2015ToyotaYaris1.5LL4N/AFederal and California Emissions; Direct Fit Converter
2014ToyotaYaris1.5LL4N/ADirect Fit; (Japan-Built Only); 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.; Aftermarket is a 2 Piece Design.
2014ToyotaYaris1.5LL4N/ADirect Fit; Complete Assembly; 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.
2013ToyotaYaris1.5LL4N/ADirect Fit; (12-13); 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.; Aftermarket is a 2 Piece Design.
2013ToyotaYaris1.5LL4N/ADirect Fit; Complete Assembly; 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.
2012ToyotaYaris1.5LL4N/ADirect Fit; (12-13); 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.; Aftermarket is a 2 Piece Design.
2012ToyotaYaris1.5LL4N/ADirect Fit; Complete Assembly; 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.
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
17410-21B00