AP Exhaust 645426 Catalytic Converter - Right
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AP Exhaust

AP Exhaust 645426 Catalytic Converter - Right

Brand AP Exhaust 645426
Position Right
Body Material Stainless steel
Inlet Gasket Yes
Inlet Hardware None
Inlet Type A 3 bolt welded flange w/ gasket stub
O2 Sensor Ports 1
Outlet Gasket Yes
Outlet Hardware None
Outlet Type A 2 bolt welded flange w/ gasket stub
Overall Length (IN) 33.38
Substrate Material Ceramic
Type Federal / epa direct-fit
Fits Toyota · 4 vehicles

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

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

Ceramic substrate. Engineered for efficient converter performance.

$465.51Free shipping
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AP Exhaust 645426 Catalytic Converter

AP Exhaust 645426 is a Federal / EPA direct-fit catalytic converter built for the right side of select 2005-2006 Toyota Tundra applications. It uses a stainless steel body, a ceramic substrate, and OE-style flange connections to support proper exhaust fitment on the Toyota Tundra right catalytic converter location.

Key Features

  • Direct-fit Federal / EPA catalytic converter for select Toyota Tundra models
  • Stainless steel body for corrosion resistance in exhaust service
  • Ceramic substrate material for efficient exhaust aftertreatment
  • 3-bolt welded inlet flange with gasket stub and 2-bolt welded outlet flange with gasket stub
  • One O2 sensor port for factory-style sensor placement
  • Includes inlet gasket and outlet gasket
  • Built to OE dimensions and fitment standards

Detailed Description

AP Exhaust part number 645426 is engineered for 2005-2006 Toyota Tundra right-side applications with direct-fit installation geometry. The converter uses AP Emissions Technologies’ ARISTO substrate chemistry and advanced manufacturing methods to support efficient catalyst loading while maintaining exact OE dimensions. For buyers searching for a 2005 Toyota Tundra right catalytic converter or a 2006 Toyota Tundra right catalytic converter, this unit provides the correct flange style, overall length, and sensor-port layout for the listed emissions configurations.

This part cross-references common OE-style replacement needs for the same application and is identified by part number 645426 in AP Exhaust catalogs. It is listed for Federal and California emissions configurations, with notes that apply to specific states and California exclusions as shown in the fitment data.

What It Helps Address

  • Check engine light concerns related to catalyst efficiency faults
  • Exhaust leaks at the converter flange connection points
  • Restricted exhaust flow from a worn or damaged converter
  • Failed emissions inspection due to converter deterioration
  • Noise or odor issues caused by a compromised catalytic converter

Installation Notes and Tips

Verify the vehicle’s emissions configuration, right-side position, and state restrictions before installation. This AP Exhaust 645426 converter uses a 3-bolt welded flange inlet and a 2-bolt welded flange outlet, so confirm the existing exhaust connection style and gasket surfaces match the listed fitment. Check O2 sensor routing and sensor-port alignment before final tightening.

Fits 2005-2006 Toyota Tundra, right. Fits 2005-2006 Toyota Tundra, right, direct fit; Federal and California emissions notes apply, with California and other state restrictions listed in fitment data.

Quality Assurance

AP Exhaust builds this catalytic converter to OE dimensions using automated workstations, spinner welding equipment, and high-speed production lines. The stainless steel body and ceramic substrate are selected to support consistent fitment and converter performance in the specified Toyota Tundra applications.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006ToyotaTundra4.7LV8RightDirect Fit; (05-06); 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.; Exc. Calif.
2006ToyotaTundra4.7LV8RightDirect 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.
2005ToyotaTundra4.7LV8RightDirect Fit; (05-06); 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.; Exc. Calif.
2005ToyotaTundra4.7LV8RightDirect 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.