Walker 83444 Catalytic Converter - Rear Right or Right

Walker CalCat Direct-Fit Catalytic Converter

Walker CalCat 83444 is a direct-fit catalytic converter built for specific rear-right applications on select Nissan and Infiniti vehicles. It is CARB certified, uses a stainless steel body with a ceramic substrate, and is shaped for OE-style fitment on the exhaust system.

Walker’s CalCat product line focuses on direct-fit replacement converters that are designed, tested, and validated for CARB compliance. For buyers searching for a 2004-2006 Nissan Titan rear right catalytic converter or a 2004-2006 Infiniti QX56 rear right catalytic converter, this line is built around precise fitment and emissions compliance.

Key Features

• Part number 83444
• Direct-fit, specific-fit catalytic converter
• CARB certified for regulated emissions applications
• Stainless steel body with ceramic substrate
• Round body shape with 2-bolt welded flange inlet and outlet
• Pre-catalyst oxygen sensor location
• OE-style fit for select rear-right exhaust positions

Detailed Description

This Walker CalCat catalytic converter is engineered for select 2004-2006 Nissan Titan, 2004-2006 Infiniti QX56, and 2004 Nissan Pathfinder Armada rear-right applications. It is a single-converter, direct-fit replacement with an overall length of 25.875 inches, a body length of 8 inches, and a body height and width of 4.02 inches. The outlet outside diameter is 2.245 inches, and the unit uses welded 2-bolt flanges at both ends for a factory-style exhaust connection.

As part of the CalCat line, this converter is built for CARB-compliant replacement use where required. The design supports OE-style installation geometry and is intended for vehicles that need a specific-fit catalytic converter with emissions-focused construction. Part number 83444 is also referenced for the same application under cross-reference number 5592215.

What This Part Helps Address

• Failed catalytic converter emissions testing
• Check engine light concerns related to catalyst efficiency
• Restricted exhaust flow from a worn converter
• Replacement needs after corrosion or internal substrate damage
• CARB compliance requirements on approved applications

Installation Notes and Tips

Fits 2006 Infiniti QX56, rear right; 2006 Nissan Armada, rear right; 2006 Nissan Titan, rear right; 2005 Infiniti QX56, rear right; 2005 Nissan Armada, rear right; 2005 Nissan Titan, rear right; 2004 Infiniti QX56, rear right; 2004 Nissan Pathfinder Armada, rear right; and 2004 Nissan Titan, rear right. For 2006 and 2005 Nissan Titan right-side federal-emissions applications, the notes specify a different engine family and state that the part is not legal for sale or use in California.

Additional parts are noted for installation on listed applications, and an exhaust gasket is recommended on certain federal-emissions Titan applications. Verify engine family number, emissions label, and position before ordering to confirm the correct rear-right converter for your vehicle.

Quality Assurance

Walker states that CalCat direct-fit catalytic converters are designed, tested, and validated to meet CARB standards and deliver precise OE-style fitment. This part is CARB Executive Order D-182-69 approved for the listed applications.