AP Exhaust 771409 Catalytic Converter - Front Left

Overview of AP Exhaust Catalytic Converter 771409

The AP Exhaust catalytic converter part number 771409 is designed specifically for Nissan Altima and Maxima models. This carb compliant direct-fit converter ensures proper emission control while maintaining vehicle performance and compliance with environmental standards.

• Compatible with Nissan Altima and Maxima
• Executive Order D-798-9 compliant
• Direct-fit design with 6 bolt welded inlet and 3 bolt welded outlet
• Ceramic substrate material for efficient catalytic conversion
• Includes one O2 sensor port for accurate emissions monitoring
• Overall length of 13 inches for precise fitment
• Includes outlet gasket and hardware for secure installation

Detailed Product Description

This AP Exhaust catalytic converter, part number 771409, is engineered to meet strict emissions regulations under Executive Order D-798-9. Featuring a ceramic substrate, it effectively reduces harmful exhaust gases while maintaining optimal exhaust flow. The converter’s inlet uses a 6 bolt welded flange, and the outlet features a 3 bolt welded flange, ensuring a secure and direct-fit installation on compatible Nissan Altima and Maxima vehicles. The unit includes one O2 sensor port to accommodate factory oxygen sensors, supporting accurate engine management and emissions control.

The 2NSXV03.5C6A brand line represents AP Exhaust’s commitment to producing carb compliant direct-fit catalytic converters that meet or exceed OEM specifications. This product line focuses on precise fitment and regulatory compliance, making it a reliable replacement option for Nissan vehicles requiring Executive Order certified parts.

Common Applications and Problem Solving

• Replacement for failing or clogged catalytic converters on Nissan Altima and Maxima
• Restores proper emissions control to pass state and federal inspections
• Resolves check engine light issues related to catalytic converter efficiency
• Improves exhaust flow and reduces harmful emissions
• Addresses O2 sensor errors caused by damaged or incompatible converters

Installation Notes and Tips

Ensure compatibility with your specific Nissan Altima or Maxima model year before installation. The converter’s 6 bolt welded inlet and 3 bolt welded outlet require matching flange hardware for proper sealing. This part includes outlet gasket and hardware; however, inlet gaskets are not included and may need to be sourced separately. Proper torque specifications should be followed to avoid exhaust leaks. The single O2 sensor port must align with the vehicle’s sensor location for accurate readings.

Quality Assurance and Warranty

Manufactured by AP Exhaust Holdings, LLC, this catalytic converter complies with Executive Order D-798-9, ensuring it meets emissions standards for Nissan Altima and Maxima vehicles. The ceramic substrate material is designed for durability and long service life. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary.