Dorman 674-631 Catalytic Converter with Integrated Exhaust Manifold

Dorman 674-631 Catalytic Converter Manifold

The Dorman 674-631 is a catalytic converter with integrated exhaust manifold for specific Hyundai Tucson and Kia Sportage applications. It is built as a direct OE-style replacement with a stainless steel converter body and a natural finish for a factory-style repair.

Key Features

• Integrated exhaust manifold and catalytic converter design
• Stainless steel converter body for corrosion resistance
• Round inlet port shape
• Natural finish
• Includes inlet gasket and outlet mounting hardware
• CARB certified: No

Application Details

This manifold converter is engineered to match original equipment dimensions and mounting points on select Hyundai Tucson and Kia Sportage models. It is a direct replacement for 2010-2013 Hyundai Tucson, 2014-2015 Hyundai Tucson with California emissions, 2011-2012 Kia Sportage, and 2013-2016 Kia Sportage with California emissions. This part number, 674-631, is also cross-referenced to Walker Exhaust 52590 for the same application.

What It Helps Address

• Cracked or leaking exhaust manifold assembly
• Restricted catalytic converter flow
• Exhaust odor or emissions-related fault codes
• Broken mounting points or flange sealing issues
• Noise from exhaust leaks at the manifold area

Installation Notes

Verify engine and emissions configuration before ordering, especially on California-emissions vehicles. The package includes the exhaust manifold, manifold and flange gaskets, studs, nuts, and heat shield bolts. Use the included inlet gasket and outlet mounting hardware during installation, and confirm all flange surfaces are clean and flat before tightening.

Quality Assurance

Dorman designs this manifold converter to follow original equipment fit and function on the listed Hyundai Tucson and Kia Sportage applications. Part number 674-631 is built for regular-duty replacement service and uses stainless steel construction for dependable exhaust system repair.