Dorman 679-503 Catalytic Converter - Front Right or Right

Overview of Dorman 679-503 Catalytic Converter

The Dorman 679-503 catalytic converter is designed specifically for select INFINITI and Nissan models, including the Pathfinder and QX4. Engineered with a stainless steel body and ceramic substrate, this catalytic converter ensures reliable exhaust emission control tailored to your vehicle's specifications.

• Specific fit for INFINITI Pathfinder and Nissan QX4
• Stainless steel cylindrical body measuring 4.7 inches in length and 3.87 inches in width
• Flanged inlet and outlet with precise diameters for secure connection
• Includes inlet and outlet gaskets and mounting hardware for installation
• Ceramic substrate for effective catalytic conversion
• Regular grade type with a natural finish

Detailed Product Features and Specifications

The Dorman 679-503 catalytic converter features a cylinder-shaped stainless steel body with an overall length of 9.5 inches. The inlet has a flanged design with an inside diameter of 3.48 inches and an outside diameter of 3.68 inches, while the outlet also uses a flanged connection with an inside diameter of 1.78 inches. This part includes three inlet mounting holes and three outlet mounting holes, ensuring a secure fit. The ceramic substrate inside the converter facilitates the reduction of harmful emissions, meeting the requirements for regular grade catalytic converters. Although this unit is not CARB certified, it is engineered to meet the specific exhaust system needs of the INFINITI Pathfinder and Nissan QX4 models.

Compatible Vehicles and Common Applications

• Replacement for faulty or damaged catalytic converters on INFINITI Pathfinder models
• Restores proper exhaust flow and emission control on Nissan QX4 vehicles
• Addresses issues such as check engine light triggered by catalytic converter failure
• Helps resolve poor engine performance related to exhaust restrictions
• Reduces excessive exhaust emissions to meet standard regulatory requirements

Installation Notes and Tips

When installing the Dorman 679-503 catalytic converter, ensure all gaskets are properly seated to prevent exhaust leaks. The flanged inlet and outlet connections require precise alignment with the vehicle’s exhaust manifold and downstream piping. Use the included mounting hardware to secure the converter firmly in place. It is recommended to inspect surrounding exhaust components for wear or damage during installation to maintain optimal system performance.

Quality Assurance and Warranty Information

Dorman catalytic converters are manufactured with durable stainless steel and ceramic materials to provide consistent performance and longevity. While this product is not CARB certified, it is designed to meet OEM specifications for the INFINITI Pathfinder and Nissan QX4. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.