AP Exhaust 771489 Catalytic Converter - Rear

Direct-Fit Catalytic Converter for Nissan Sentra

AP Exhaust 771489 is a CARB-compliant direct-fit catalytic converter built for specific Nissan Sentra rear applications. It uses a stainless steel body, a ceramic substrate, and OE-style 2-bolt welded flange connections to support proper fitment on California emissions vehicles.

AP Exhaust’s 7NSXV02.0G2A product line focuses on exact OE dimensions and consistent converter construction, using automated manufacturing and spinner welding processes to help maintain fit and repeatable performance. This part number, 771489, is built for drivers replacing a rear catalytic converter on a Nissan Sentra with California emissions requirements.

Key Features

• CARB compliant direct-fit catalytic converter
• Stainless steel body for corrosion resistance
• Ceramic substrate material
• 1 O2 sensor port
• 2-bolt welded flange inlet and outlet design
• Inlet gasket and outlet gasket included
• Overall length: 31 inches
• Executive Order D-798-9

Detailed Description

AP Exhaust 771489 is engineered for rear catalytic converter replacement on select Nissan Sentra models with California emissions equipment. The converter uses ARISTO substrate chemistry and advanced manufacturing methods to support efficient catalyst loading while maintaining OE-style dimensions for proper alignment during installation. The stainless steel housing and ceramic substrate are paired with welded flange connections for a direct-fit replacement that matches the listed application.

Compatible With 2012 Nissan Sentra, rear; 2011 Nissan Sentra, rear; 2010 Nissan Sentra, rear; 2009 Nissan Sentra, rear; 2008 Nissan Sentra, N/A; and 2007 Nissan Sentra, N/A. This part number 771489 is also identified under AP Exhaust brand line 7NSXV02.0G2A for the same emissions application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Part Helps Address

• Failed catalytic converter efficiency codes
• Emissions test failures on California-equipped Nissan Sentra models
• Restricted exhaust flow caused by a deteriorated converter
• Rattling or substrate breakdown inside the converter housing
• Exhaust leaks at the converter flange connection

Installation Notes and Tips

• Verify the vehicle’s emissions configuration before ordering.
• Match the rear position and flange style to the existing exhaust layout.
• Confirm the single O2 sensor port location against the original unit.
• Use the included inlet and outlet gaskets during installation.
• Check all mounting surfaces and exhaust connections for damage before assembly.

Quality Assurance

AP Exhaust builds this converter to exact OE dimensions and fitment standards using automated production equipment and spinner welding processes. The unit carries Executive Order D-798-9 for California emissions compliance on the listed applications.