AP Exhaust 771145 Catalytic Converter with Integrated Exhaust Manifold - Front

AP Exhaust 771145 Catalytic Converter

AP Exhaust 771145 is a front catalytic converter with integrated exhaust manifold for select Nissan applications. It is built to OE dimensions for direct fitment and uses AP Exhaust Holdings, LLC Executive Order D-798-9 for California emissions compliance on listed vehicles.

Key Features

• Part number 771145 catalytic converter with integrated exhaust manifold
• Direct-fit replacement for front-position Nissan applications
• Built to exact OE dimensions for fitment consistency
• ARISTO substrate chemistry for efficient catalyst loading
• California emissions compliance on listed applications, EO D-798-9
• AP Exhaust brand line: 2NSXV02.5D5A

Product Details

This AP Exhaust catalytic converter is engineered for 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra front applications listed in the fitment data. The integrated exhaust manifold design supports a direct replacement path for vehicles that need a front converter assembly, while the manufacturer’s substrate chemistry and automated production methods are used to maintain consistent dimensions and converter efficiency. If you are replacing a front catalytic converter on a 2002 Nissan Altima, 2003 Nissan Sentra, or 2006 Nissan Sentra, part number 771145 provides a cataloged OE-style solution for the specified emissions configuration.

The 2NSXV02.5D5A product line identifies this specific AP Exhaust converter family for the listed Nissan fitments. This part cross-references no additional part numbers in the provided data.

Common Repair Reasons

• Failed emissions test due to a worn or inefficient front catalytic converter
• Check engine light related to catalyst efficiency or exhaust flow issues
• Exhaust manifold and converter assembly damage from age, heat, or corrosion
• Rattling, restriction, or performance loss from a deteriorated converter substrate
• Need for a direct-fit replacement on listed Nissan Altima and Sentra models

Installation Notes

Verify the vehicle year, model, and front-position application against the fitment list before installation. Confirm California emissions requirements and EO D-798-9 where applicable. Because this is an integrated exhaust manifold assembly, inspect adjoining exhaust components, mounting surfaces, and sensors during replacement to ensure proper sealing and fit.

Quality Assurance

AP Exhaust states that this converter is manufactured to OE dimensions using advanced production equipment and controlled welding processes for consistent fitment and build quality. The listed Executive Order D-798-9 identifies California emissions compliance for the approved applications.