Walker 31673 Exhaust Pipe Flange Gasket - Resonator Assembly To Muffler Assembly

Walker 31673 Exhaust Pipe Flange Gasket

Walker 31673 is a donut-style exhaust pipe flange gasket built for exhaust repair where a tight seal matters. It uses high-temperature graphite with a wire mesh core to help maintain sealing performance at the flange connection on select Lexus, Mazda, and Honda applications.

Compatible with OE exhaust components and Walker aftermarket replacement parts, this gasket supports common exhaust service jobs on vehicles such as the Honda CR-V, Honda Accord, Mazda CX-7, Mazda 6, Lexus NX200t, and Lexus NX300.

Key Features

• Donut-style exhaust pipe flange gasket
• High-temperature graphite construction with wire mesh core
• Inside diameter: 2.625 in.
• Outside diameter: 3.375 in.
• Thickness: 0.62 in.
• Designed for OE exhaust components and Walker replacement parts
• Walker part number 31673

Detailed Description

Walker 31673 is an exhaust pipe flange gasket designed to seal the joint between exhaust components and help restore proper exhaust flow integrity after service. The graphite material and wire mesh core are selected for high-heat exhaust environments, while the donut profile and listed dimensions support a precise flange connection on the specified applications. This part number 31673 is a direct-fit style sealing component for repair work on select Honda, Mazda, and Lexus vehicles.

This part cross-references BRExhaust 256-1191 for the same application.

What It Helps Fix

• Exhaust leaks at the flange connection
• Noise from a failing exhaust seal
• Soot marks around the exhaust joint
• Loss of sealing after exhaust service
• Fitment issues when replacing worn flange gaskets

Installation Notes and Tips

• Verify flange dimensions before installation, especially inside diameter, outside diameter, and thickness.
• Inspect mating surfaces for corrosion, warping, or carbon buildup before assembly.
• Use on the listed applications only: Fits 2002-2011 Honda CR-V, N/A; Fits 2003-2007 Honda Accord, N/A; Fits 2007-2012 Mazda CX-7, Resonator Assembly To Muffler Assembly; Fits 2009-2013 Mazda 6, N/A; Fits 2015-2017 Lexus NX200t, N/A; Fits 2018-2021 Lexus NX300, N/A.
• Confirm the exhaust joint position matches the vehicle’s original flange location before service.

Quality Assurance

Walker manufactures exhaust sealing components for use with OE-style exhaust systems and Walker aftermarket replacement parts. Part number 31673 is built to match the listed dimensions and application coverage for a proper exhaust repair.