AP Exhaust 643043 Catalytic Converter - Rear
OE Quality 60-Day Returns
AP Exhaust

AP Exhaust 643043 Catalytic Converter - Rear

Brand AP Exhaust 643043
Position Rear
Body Material Stainless steel
Inlet Gasket 2
Inlet Gasket Yes
Inlet Hardware None
Inlet Type A 2 bolt welded flange
Inlet Type B 2 bolt welded flange
O2 Sensor Ports 1
Outlet Gasket Yes
Outlet Hardware None
Outlet Type A 2 bolt welded flange
Overall Length (IN) 79
Substrate Material Ceramic
Type Federal / epa direct-fit
Fits Hyundai · 8 vehicles

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

Stainless steel body. Resists corrosion for long-term durability.

Ceramic substrate. Promotes efficient converter performance.

$470.67Free shipping
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AP Exhaust 643043 Catalytic Converter

AP Exhaust 643043 is a Federal / EPA direct-fit catalytic converter built for exact OE dimensions and fitment. It is engineered for the 2003-2006 Hyundai Santa Fe, including rear and main converter applications listed for Federal and California emissions configurations where permitted.

Key Features

  • Federal / EPA direct-fit catalytic converter
  • Stainless steel body for corrosion resistance
  • Ceramic substrate material
  • 2-bolt welded flange inlet and outlet connections
  • 1 O2 sensor port
  • Overall length: 79 inches
  • Built to OE dimensions for proper fitment on Hyundai Santa Fe exhaust systems

Detailed Description

Part number 643043 uses AP Exhaust ARISTO substrate chemistry and advanced manufacturing methods to support efficient converter loading while maintaining precise fitment. The stainless steel housing, ceramic substrate, and welded flange design are specified for direct replacement use on 2003-2006 Hyundai Santa Fe models. This AP Exhaust catalytic converter is a practical choice when replacing a worn or restricted unit on the rear exhaust section or main converter location, depending on the vehicle configuration.

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

What It Helps Fix

  • Check engine light related to catalyst efficiency faults
  • Restricted exhaust flow from a deteriorated converter
  • Failed emissions inspection caused by a worn catalytic converter
  • Exhaust odor or emissions issues from a damaged substrate
  • Fitment problems from a non-OE-style replacement part

Installation Notes and Tips

Fits 2003-2006 Hyundai Santa Fe, rear. Fits 2003-2006 Hyundai Santa Fe, rear main converter application. Verify the vehicle’s emissions certification and mounting style before installation. This part uses 2-bolt welded flange inlet and outlet connections and includes 1 O2 sensor port. Professional installation is recommended to confirm proper sealing, sensor placement, and exhaust alignment.

Quality Assurance

AP Exhaust uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to OE dimensions and fitment standards. The manufacturer’s process is focused on consistent construction, efficient substrate loading, and competitive replacement quality for direct-fit exhaust service.

Related reading

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006HyundaiSanta Fe3.5LV6RearDirect 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.
2006HyundaiSanta Fe3.5LV6RearDirect Fit; Main Conv.; 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.
2005HyundaiSanta Fe3.5LV6RearDirect 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.
2005HyundaiSanta Fe3.5LV6RearDirect Fit; Main Conv.; 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.
2004HyundaiSanta Fe3.5LV6RearDirect 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.
2004HyundaiSanta Fe3.5LV6RearDirect Fit; Main Conv.; 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.
2003HyundaiSanta Fe3.5LV6RearDirect 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.
2003HyundaiSanta Fe3.5LV6RearDirect Fit; Main Conv.; 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.