OP Converters OPCT1144 Catalytic Converter with Integrated Exhaust Manifold - Left

OE-Style Exhaust Manifold Catalytic Converter

OP Converters OPCT1144 is a catalytic converter with an integrated exhaust manifold for the left side of select Lexus and Toyota applications. It is built for Federal 47-state use and is not legal for sale in California, New York, or Maine.

• Part number: OPCT1144
• Catalytic converter with integrated exhaust manifold design
• Left-side application
• Federal 47-state only
• Direct-fit replacement for select Lexus RX450h, RX350, and RX350L models, plus Toyota Highlander and Sienna

Fitment Details

Compatible with the following applications: Fits 2016-2022 Lexus RX450h, left; Fits 2020-2022 Lexus RX450hL, left; Fits 2018 Lexus RX450hL, left; Fits 2016-2020 Lexus RX350, left; Fits 2018-2020 Lexus RX350L, left; Fits 2017-2020 Toyota Highlander, left; Fits 2017-2020 Toyota Sienna, left.

Use OPCT1144 when replacing a left-side exhaust manifold catalytic converter on a Lexus RX450h or Toyota Highlander/Sienna application that requires a Federal 47-state configuration. This part number, OPCT1144, is listed for multiple left-side fitments across Lexus RX350 and RX350L as well.

Common Replacement Reasons

• Failed catalytic converter efficiency codes
• Exhaust leaks at the manifold/converter assembly
• Rattling or damaged internal catalyst substrate
• Check engine light related to emissions performance
• Cracked or corroded integrated manifold housing

Installation Notes

Verify engine configuration, left-side location, and emissions requirements before installation. This unit is for Federal 47-state applications only and is not legal for sale in CA, NY, or ME. Confirm all mounting points and exhaust connections match the original assembly before replacing the part.

Quality Assurance

OP Converters supplies emissions components for direct replacement use in approved Federal 47-state applications. Always confirm local emissions compliance before purchase and installation.