AP Exhaust 641353 Catalytic Converter with Integrated Exhaust Manifold - Front Left or Left

AP Exhaust Catalytic Converter with Integrated Exhaust Manifold Overview

The AP Exhaust catalytic converter with integrated exhaust manifold (part number 641353) is designed for direct-fit replacement on select INFINITI and Nissan models. Engineered with stainless steel construction and a ceramic substrate, this component ensures durability and compliance with federal emissions standards.

• Constructed from corrosion-resistant stainless steel body
• Includes inlet and outlet gaskets for proper sealing
• Features an 8-bolt welded flange inlet and 2-bolt welded flange outlet
• Equipped with one O2 sensor port for accurate emissions monitoring
• Overall length of 29 inches for precise fitment
• Federal/EPA direct-fit manifold type for legal compliance

Durable Design and Material Specifications

This catalytic converter integrates the exhaust manifold and converter into a single unit, reducing installation complexity and potential leak points. The stainless steel body offers resistance to rust and heat, extending the lifespan of the part. The ceramic substrate inside efficiently converts harmful exhaust gases into less harmful emissions, meeting federal EPA requirements. The inclusion of inlet and outlet gaskets ensures a secure seal, while the welded flange connections provide a reliable fit to the vehicle's exhaust system.

Compatible Vehicles and Applications

This AP Exhaust catalytic converter with integrated exhaust manifold is compatible with the following vehicles:

• INFINITI QX56
• Nissan Armada
• Nissan Pathfinder and Pathfinder Armada
• Nissan TITAN
• Nissan NV2500 and NV3500

It is designed to replace the original equipment part directly, maintaining factory performance and emissions control.

Common Issues Addressed by This Part

• Excessive exhaust emissions causing failed emissions tests
• Cracked or damaged exhaust manifold leading to exhaust leaks
• Reduced engine performance due to clogged catalytic converter
• Check engine light triggered by faulty O2 sensor readings
• Corrosion or rust damage to original exhaust manifold or converter

Installation Notes and Tips

Installation requires removal of the original catalytic converter and exhaust manifold assembly. Ensure all gaskets are properly seated to prevent exhaust leaks. The part includes inlet and outlet gaskets and outlet hardware, but inlet hardware is not included. Use appropriate torque specifications for the 8-bolt inlet flange and 2-bolt outlet flange to secure the unit. Verify O2 sensor port alignment before final installation.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet or exceed federal EPA standards for emissions control. The stainless steel construction and ceramic substrate are designed for long-term durability. While specific warranty details are not provided here, AP Exhaust products typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.