Dorman 679-521 Catalytic Converter - Front

Overview of Dorman 679-521 Catalytic Converter for Nissan Maxima

The Dorman 679-521 catalytic converter is a specific fit replacement designed for Nissan Maxima models. Engineered with a stainless steel body and ceramic substrate, this converter ensures reliable exhaust emission control while maintaining vehicle performance.

• Specific fit for Nissan Maxima
• Stainless steel cylindrical body with 4-inch length
• Flanged inlet and outlet connections for secure mounting
• Ceramic substrate for effective catalytic conversion
• Includes inlet and outlet gaskets and mounting hardware
• One sensor port and five air tubes for optimal exhaust flow

Detailed Product Features and Specifications

The Dorman 679-521 catalytic converter features a cylinder-shaped stainless steel body measuring 4 inches in length and approximately 3.87 inches in width. It has a flanged inlet with an inside diameter of 3.79 inches and an outlet with a 4.4-inch outside diameter and 1.89-inch inside diameter, both designed for a secure fit. The converter includes one inlet and one outlet, each with multiple mounting holes (6 for inlet, 3 for outlet) to ensure proper installation. The ceramic substrate inside the converter facilitates the reduction of harmful emissions. This part is a regular grade type and is not CARB certified, making it suitable for use in regions without California Air Resources Board requirements.

Compatible Vehicles and Applications

This catalytic converter is specifically compatible with Nissan Maxima vehicles, providing a direct replacement for the original exhaust component. It is designed to restore proper exhaust flow and emission control in affected Maxima models, ensuring compliance with standard emission regulations where applicable.

• Restores catalytic function in Nissan Maxima exhaust systems
• Replaces damaged or clogged catalytic converters
• Helps reduce exhaust emissions and improve engine efficiency
• Addresses exhaust leaks caused by faulty converter seals
• Supports proper sensor operation with included sensor port

Installation Notes and Tips

Installation of the Dorman 679-521 catalytic converter requires attention to the flanged inlet and outlet connections. The included inlet and outlet gaskets should be used to ensure a proper seal and prevent exhaust leaks. Mounting hardware is provided for secure attachment. It is recommended to verify the sensor port alignment and ensure the oxygen sensor is properly installed to maintain accurate emissions monitoring. Professional installation is advised to ensure compliance with local emission standards and proper fitment.

Quality Assurance and Warranty

Dorman manufactures this catalytic converter with durable stainless steel and a ceramic substrate to meet standard replacement requirements. While this part is not CARB certified, it meets regular grade standards for emission control. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary based on application and region.