Walker 31642 Exhaust Pipe Flange Gasket

Walker 31642 Exhaust Pipe Flange Gasket

Walker 31642 is an exhaust pipe flange gasket built for sealing the joint between exhaust components. It uses a graphoil composite construction with a 5-bolt pattern, 4.000 in. by 4.000 in. port dimensions, and a 0.051 in. thickness for a precise exhaust seal.

Compatible with Mazda Protege, Mazda Protege5, and Mazda 626 applications, this Walker exhaust pipe flange gasket is made to work with OE exhaust components and Walker aftermarket replacement parts. The 31642 part number is a direct reference for shoppers searching for a Mazda Protege exhaust flange gasket or a Mazda 626 exhaust gasket replacement.

Key Features

• Part number: Walker 31642
• Exhaust pipe flange gasket for exhaust sealing repairs
• 5-bolt gasket design
• Graphoil composite material
• Port size: 4.000 in. x 4.000 in.
• Thickness: 0.051 in.
• Bolt hole center to bolt hole center: 2.25 in.
• Bolt hole diameter: 0.375 in.

Detailed Description

Walker 31642 is an exhaust pipe flange gasket used to restore the seal at a flanged exhaust connection. The graphoil composite material is selected for exhaust sealing applications, while the 5-bolt layout and listed dimensions help support proper alignment with the mating flange. This part is intended for use with OE exhaust components and Walker replacement exhaust parts, making it a practical choice for exhaust repair work on Mazda Protege, Protege5, and 626 vehicles.

This part cross-references BRExhaust 256-1115 for the same application.

What It Is Used For

• Sealing an exhaust flange joint that is leaking at the connection point
• Replacing a damaged or deteriorated exhaust pipe flange gasket
• Addressing exhaust noise caused by a failed flange seal
• Correcting exhaust odor entering the cabin from a leaking joint
• Restoring a secure seal after exhaust service on Mazda Protege or Mazda 626 models

Installation Notes and Tips

Verify flange bolt pattern, port size, and bolt hole spacing before installation. Clean both mating surfaces thoroughly so the gasket seats evenly and the flange can clamp correctly. Check the exhaust flange for warping, corrosion, or pitting, since surface damage can prevent a proper seal even with a new gasket. Confirm application details for 1998-2002 Mazda 626, 1999-2003 Mazda Protege, and 2002-2003 Mazda Protege5 before ordering.

Quality Assurance

Walker supplies exhaust sealing components for OE-style repair applications, and this gasket is built to match the listed dimensions and flange configuration for the specified Mazda fitments. Fits 1998-2002 Mazda 626, N/A; Fits 1999-2003 Mazda Protege, N/A; Fits 2002-2003 Mazda Protege5, N/A.