Dorman 674-605 Catalytic Converter with Integrated Exhaust Manifold - Rear

Overview of Dorman 674-605 Catalytic Converter with Exhaust Manifold

The Dorman 674-605 catalytic converter with integrated exhaust manifold is designed specifically for Mazda Millenia models. This natural-colored, cast iron component offers a reliable replacement option for exhaust system repairs where the manifold and converter are combined.

• Compatible with Mazda Millenia vehicles
• Constructed from durable cast iron for long-lasting performance
• Includes inlet gasket and mounting hardware for secure installation
• Features a round inlet port shape for proper fitment
• Outlet with seven mounting holes to ensure stable connection

Product Details and Specifications

This catalytic converter assembly (part number 674-605) integrates the exhaust manifold and converter body into a single unit, simplifying replacement on compatible Mazda Millenia models. The converter body is made from cast iron, providing strength and resistance to high temperatures. The natural finish maintains the original equipment appearance. The inlet port is round, matching the factory exhaust flange, and the outlet includes seven mounting holes to accommodate the exhaust system connection. The package contains the exhaust manifold, one manifold gasket, one flange, three bolts, and three nuts, ensuring you have the necessary components for installation.

Common Applications and Problem Resolution

• Replacement for cracked or damaged exhaust manifold and catalytic converter assemblies
• Restores proper exhaust flow and emission control on Mazda Millenia vehicles
• Addresses exhaust leaks caused by gasket failure or manifold cracks
• Helps resolve check engine light issues related to catalytic converter malfunction
• Improves engine performance by maintaining correct exhaust backpressure

Installation Notes and Tips

When installing the Dorman 674-605 catalytic converter with integrated exhaust manifold, ensure the mating surfaces are clean and free of debris to achieve a proper seal. Use the included inlet gasket and mounting hardware to secure the assembly. It is recommended to torque bolts to manufacturer specifications to prevent leaks or damage. This part is designed for direct replacement on compatible Mazda Millenia models, but professional installation is advised to ensure proper fit and function.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. While this catalytic converter with integrated exhaust manifold is not CARB certified, it is built with quality materials such as cast iron to withstand the demands of exhaust system operation. Please refer to Dorman's warranty policy for specific coverage details.