HomeExhaust > Catalytic ConverterOP Converters OPCK8004 Catalytic Converter - Rear
Part #: OPCK8004

OP Converters OPCK8004 Catalytic Converter - Rear

Rear
13 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Hyundai and Kia, Optima and Sonata
Easy Returns — Return within 60 days for a full refund
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Rear Catalytic Converter for Kia Optima and Hyundai Sonata

OP Converters OPCK8004 is a direct-fit rear catalytic converter for select Kia Optima and Hyundai Sonata applications. It is built for the rear exhaust position and follows the vehicle-specific fitment needed for a straightforward replacement on the listed models.

Key Features

  • Direct-fit rear catalytic converter
  • Fits 2001-2006 Kia Optima, rear
  • Fits 1999-2005 Hyundai Sonata, rear
  • Part number OPCK8004 for easy identification
  • OE-style replacement for the listed exhaust applications

Product Details

OP Converters OPCK8004 is an exhaust catalytic converter made for rear-position installation on the specified Kia Optima and Hyundai Sonata model years. Use this part when replacing a worn, damaged, or restricted rear converter on 2001-2006 Kia Optima or 1999-2005 Hyundai Sonata vehicles. The direct-fit design supports a vehicle-specific exhaust replacement without requiring fitment guesswork. This part number, OPCK8004, is the reference to use when matching the rear catalytic converter for these applications.

Common Replacement Reasons

  • Check engine light related to catalyst efficiency
  • Failed emissions inspection
  • Restricted exhaust flow from a deteriorated converter
  • Rattling or damaged converter substrate
  • Exhaust odor or performance loss tied to converter wear

Installation Notes

Install in the rear exhaust position only on the listed applications. Verify the vehicle year, make, model, and rear-position configuration before ordering. Exhaust components should be inspected for leaks, corrosion, and damaged mounting points during replacement. Professional installation is recommended for proper exhaust sealing and emissions system function.

Quality Assurance

OP Converters OPCK8004 is a direct-fit replacement part for the listed Kia Optima and Hyundai Sonata applications. Confirm fitment by matching the part number OPCK8004 to the vehicle year and rear position before installation.

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006KiaOptima2.4LL4RearDirect Fit
2005HyundaiSonata2.4LL4RearDirect Fit
2005KiaOptima2.4LL4RearDirect Fit
2004HyundaiSonata2.4LL4RearDirect Fit
2004KiaOptima2.4LL4RearDirect Fit
2003HyundaiSonata2.4LL4RearDirect Fit
2003KiaOptima2.4LL4RearDirect Fit
2002HyundaiSonata2.4LL4RearDirect Fit
2002KiaOptima2.4LL4RearDirect Fit
2001HyundaiSonata2.4LL4RearDirect Fit
2001KiaOptima2.4LL4RearDirect Fit
2000HyundaiSonata2.4LL4RearDirect Fit
1999HyundaiSonata2.4LL4RearDirect Fit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.