Dorman 674-488 Catalytic Converter - Rear

Reliable Catalytic Converter for Nissan and INFINITI Vehicles

The Dorman 674-488 catalytic converter is designed specifically for select Nissan and INFINITI models, including the Altima, JX35, Murano, Pathfinder, Quest, and QX60. Engineered to meet standard replacement requirements, this catalytic converter ensures proper exhaust emission control and vehicle performance.

• Specific fit for Nissan and INFINITI models listed
• Stainless steel body with a durable cylinder shape
• Flanged inlet and outlet for secure connection
• Silicon carbide substrate for effective emission filtration
• Includes inlet gasket and mounting hardware for installation
• One sensor port for oxygen sensor compatibility
• Standard grade replacement part with natural finish

Product Features and Specifications

The Dorman 674-488 catalytic converter features a 4-inch body length and 4.5-inch body width, constructed from corrosion-resistant stainless steel. It has a flanged inlet and outlet, with an inlet inside diameter of 3 inches and an outlet outside diameter of 4.8 inches, ensuring a precise fit. The converter includes one inlet and one outlet, each with multiple mounting holes (inlet with 8 holes, outlet with 4 holes) to facilitate secure attachment. The silicon carbide substrate material is designed to reduce harmful emissions effectively. This converter also includes an inlet gasket and mounting hardware, but outlet mounting hardware is not included. The unit comes with one sensor port to accommodate the vehicle’s oxygen sensor, maintaining proper engine management.

Compatible Vehicles and Applications

This catalytic converter is compatible with the following Nissan and INFINITI models:

• Nissan Altima
• Nissan JX35
• Nissan Murano
• Nissan Pathfinder
• Nissan Quest
• INFINITI QX60

It is designed as a direct replacement part to restore exhaust system function and meet emission standards for these specific vehicles.

Common Issues Addressed by This Catalytic Converter

• Excessive exhaust emissions causing failed emissions tests
• Reduced engine performance due to clogged or damaged converter
• Check engine light triggered by faulty catalytic converter
• Unusual exhaust odors or increased noise from exhaust system
• Corrosion or physical damage to the original catalytic converter

Installation Notes and Tips

Installation requires proper alignment of the flanged inlet and outlet connections. The included inlet gasket and mounting hardware should be used to ensure a secure and leak-free fit. Note that outlet mounting hardware is not included and may need to be sourced separately. It is recommended to inspect the oxygen sensor and replace it if necessary during installation. Professional installation is advised to ensure compliance with vehicle emission standards and proper exhaust system function.

Quality Assurance and Warranty

The Dorman 674-488 catalytic converter is manufactured to meet standard replacement grade specifications, using durable stainless steel and silicon carbide substrate materials. While this part is not CARB certified, it is engineered to restore factory-level emission control for compatible Nissan and INFINITI vehicles. Warranty details should be confirmed with the distributor or manufacturer.