Dorman 674-319 Catalytic Converter with Integrated Exhaust Manifold - Rear

Dorman 674-319 Catalytic Converter Manifold

Dorman 674-319 is a catalytic converter with integrated exhaust manifold for specific BMW applications. It is built as a direct replacement for the original manifold converter design, with a stainless steel converter body and flanged outlet for a precise OE-style repair.

Key Features

• Catalytic converter with integrated exhaust manifold for rear exhaust placement
• Stainless steel converter body for corrosion resistance
• Natural finish with regular grade construction
• Flanged outlet design for secure exhaust connection
• One sensor port and one air tube count
• Direct replacement for select BMW 128i, 328i, 328i xDrive, 328xi, 323i, X3, and X5 applications
• Part number 674-319 for easy identification

Detailed Description

This manifold converter is precision-engineered to match the original equipment layout on select BMW models, including 2006-2013 BMW 323i, 2007-2013 BMW 328i, 2007-2008 BMW 328xi, 2009-2012 BMW 328i xDrive, 2008-2013 BMW 128i, 2011-2012 BMW X3, and 2007-2010 BMW X5. The integrated exhaust manifold design helps simplify replacement of the factory assembly while maintaining the correct fitment and connection points for the rear position. If you are replacing a worn BMW catalytic converter manifold, Dorman 674-319 provides a direct-fit service part for these specific vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 49763, 18407556504) for the same application.

What It Helps Address

• Exhaust leaks at the manifold or converter assembly
• Damaged or cracked factory manifold converter housing
• Restricted exhaust flow from a failing catalytic converter
• Check engine light concerns related to exhaust aftertreatment faults
• Fitment issues caused by using the wrong BMW exhaust manifold converter

Installation Notes and Tips

Verify the rear-position application and compare the inlet and outlet configuration before installation. This unit uses a flanged outlet, includes one outlet mounting hardware set, and does not include an outlet gasket. Confirm sensor port location, inlet port shape, and mounting hole counts against the original part on the vehicle before beginning the repair. For BMW 128i, BMW 328i, and BMW X5 exhaust repairs, matching the OE layout is important for proper installation.

Quality Assurance

Dorman manufactures this catalytic converter manifold as a direct replacement part engineered to match original equipment on specific vehicle years, makes, and models. Part number 674-319 is built for the listed BMW applications and follows the factory-style configuration for a reliable exhaust system repair.