AP Exhaust 772379 Catalytic Converter - Rear

CARB-Compliant Direct-Fit Catalytic Converter

AP Exhaust 772379 is a CARB compliant direct-fit catalytic converter built for specific Nissan applications. It uses a ceramic substrate and stainless steel body construction, with OE-style dimensions and flange design for a direct replacement on California-emissions vehicles.

The AP Exhaust 2NSXV03.5C6A product line is engineered with proprietary substrate chemistry and modern manufacturing controls to support efficient converter loading, consistent fitment, and competitive replacement value. This part number, 772379, is listed for rear or underbody applications depending on vehicle configuration.

• CARB compliant direct-fit catalytic converter
• Stainless steel body with ceramic substrate
• OE-style fitment and overall length of 38.25 in.
• 3-bolt welded flange inlet with gasket stub
• 2-bolt welded flange outlet
• California EO number D-798-9
• No O2 sensor ports
• Outlet gasket included

Detailed Product Overview

AP Exhaust 772379 is built for emissions-system replacement where exact fit and California compliance matter. The converter is designed around OE dimensions and uses a stainless steel shell with a ceramic substrate to support proper exhaust flow and emissions control. The 2NSXV03.5C6A line reflects AP Exhaust’s focus on controlled manufacturing, including automated production processes and spinner welding, to help maintain consistent build quality across direct-fit applications.

Compatible With 2002-2006 Nissan Altima, 2004-2008 Nissan Maxima, and 2007-2008 Nissan Maxima rear applications listed for California emissions requirements. This part cross-references no additional part numbers in the provided data.

Common Replacement Reasons

• Failed emissions test or catalyst efficiency fault
• Check engine light related to catalyst performance
• Restricted exhaust flow from a worn converter
• Corrosion or physical damage to the original converter
• Need for a California-compliant direct replacement

Installation Notes

Verify the vehicle’s year, model, engine/emissions configuration, and listed position before installation. This converter uses a 3-bolt welded flange inlet with gasket stub and a 2-bolt welded flange outlet; inlet gaskets are listed, while inlet and outlet hardware are not included. There are no O2 sensor ports on this unit, so confirm sensor placement on the vehicle before ordering.

For fitment-specific searches, this part is commonly referenced as a rear catalytic converter for 2007-2008 Nissan Maxima, a direct-fit converter for 2006 Nissan Altima, and a California emissions replacement for 2002-2006 Nissan Altima.

Quality Assurance

AP Exhaust Holdings, LLC identifies this converter under California Executive Order D-798-9 for emissions compliance. The product line is manufactured to exact OE dimensions using controlled production methods to support consistent fitment and repeatable build quality.