Dorman 674-074 Catalytic Converter with Integrated Exhaust Manifold - Rear

Overview of Dorman Catalytic Converter with Integrated Exhaust Manifold

The Dorman 674-074 catalytic converter with integrated exhaust manifold is designed specifically for BMW X3 models. This component combines the exhaust manifold and catalytic converter into a single unit, providing a streamlined solution for exhaust emissions control and engine performance.

• Constructed from durable stainless steel for corrosion resistance
• Natural color finish with a 4-inch converter body length
• Flanged outlet type with one inlet and one outlet
• Includes inlet gaskets and outlet gasket for proper sealing
• Equipped with two sensor ports for oxygen sensors
• Overall length of 22 inches for precise fitment
• Designed with eight inlet mounting holes and two outlet mounting holes

Detailed Product Description

The Dorman 674-074 catalytic converter with integrated exhaust manifold is engineered to meet the exhaust requirements of BMW X3 vehicles. Its stainless steel construction ensures long-lasting durability and resistance to high temperatures and corrosion. The unit features a 4-inch converter body length and a flanged outlet, facilitating secure connections within the exhaust system. With one inlet and one outlet, this part is designed for straightforward installation and optimal exhaust flow.

This catalytic converter includes two sensor ports, allowing for the installation of oxygen sensors necessary for proper engine management and emissions control. The package contains three inlet gaskets and one outlet gasket to ensure a tight seal and prevent exhaust leaks. The inlet port is round and secured with eight mounting holes, while the outlet has two mounting holes, providing a stable and secure fit.

Common Applications and Issues Addressed

• Replacement for damaged or rusted exhaust manifolds on BMW X3 models
• Restores proper catalytic converter function to reduce harmful emissions
• Eliminates exhaust leaks caused by cracked or warped manifolds
• Helps resolve check engine light issues related to oxygen sensor readings
• Improves exhaust flow and engine efficiency by maintaining proper backpressure

Installation Notes and Tips

When installing the Dorman 674-074 catalytic converter with integrated exhaust manifold, ensure all inlet gaskets are properly positioned to prevent exhaust leaks. The included outlet gasket should be used to seal the flanged outlet connection. Note that inlet mounting hardware is not included and may need to be sourced separately. Proper torque specifications should be followed for all mounting bolts to avoid damage or leaks. The two sensor ports require correct oxygen sensor installation to maintain engine performance and emissions compliance.

Quality Assurance and Warranty

Dorman manufactures this catalytic converter with integrated exhaust manifold to meet industry standards for durability and performance. While this part is not California Air Resources Board (CARB) certified, it is designed to provide reliable operation for BMW X3 vehicles. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary.