Walker 31605 Exhaust Pipe Flange Gasket

Exhaust Pipe Flange Gasket for OE-Style Repairs

Walker 31605 is an exhaust pipe flange gasket built for sealing two-bolt exhaust connections in a range of GM vehicles. It is designed to work with OE exhaust components and Walker aftermarket replacement parts, making it a direct choice for exhaust leak repair on applications such as Chevrolet Impala, Pontiac Grand Prix, and Buick LaCrosse.

Key Features

• Part number: 31605
• 2-bolt exhaust pipe flange gasket design
• Single layer tin plate with perforated metal ring
• Port size: 2.875 in. x 2.875 in.
• Bolt hole center to bolt hole center: 5.25 in.
• Bolt hole diameter: 0.375 in.
• Thickness: 0.008 in.
• Compatible with OE exhaust components and Walker replacement parts

Detailed Description

Walker 31605 is an exhaust flange gasket used at a two-bolt exhaust joint to help maintain a tight seal between connected exhaust pipes. Its single layer tin plate construction with a perforated metal ring is sized for the listed flange dimensions, including a 5.25-inch bolt hole center spacing and 0.375-inch bolt holes. This makes it a practical replacement for exhaust service on vehicles such as the Chevrolet Impala, Pontiac Grand Prix, and Buick Lucerne when the original sealing surface has worn or failed. The part number 31605 is also cross-referenced to Anchor 9088 for the same application.

Vehicle Fitment

• Fits 2000-2011 Chevrolet Impala, N/A
• Fits 2005-2009 Buick Allure, N/A
• Fits 2005-2009 Buick LaCrosse, N/A
• Fits 2006-2008 Buick Lucerne, N/A
• Fits 2007-2008 Chevrolet Uplander, N/A, without Sport Package
• Fits 1997-2008 Pontiac Grand Prix, N/A, with Dual Exhaust
• Fits 2005-2008 Pontiac Grand Prix, N/A, with Single Exhaust
• Fits 1997-2000 Pontiac Grand Prix, N/A, with Single Exhaust
• Fits 2007 Buick Terraza, N/A, without Sport Package
• Fits 2007 Saturn Relay, N/A
• Fits 1998-2006 Chevrolet Monte Carlo, N/A
• Fits 2005-2006 Chevrolet Uplander, N/A
• Fits 2000-2005 Buick LeSabre, N/A
• Fits 1997-2005 Buick Park Avenue, N/A
• Fits 1996-2005 Pontiac Bonneville, N/A
• Fits 1997-2004 Buick Regal, N/A
• Fits 1998-2002 Oldsmobile Intrigue, N/A
• Fits 1996-1999 Buick Riviera, N/A
• Fits 1998-1999 Chevrolet Lumina, N/A

What It Helps Repair

• Exhaust leaks at a two-bolt flange connection
• Damaged or flattened gasket sealing surfaces
• Noise from a leaking exhaust joint
• Loss of exhaust seal after pipe or flange service
• Fitment issues when replacing worn OE-style exhaust sealing parts

Installation Notes and Tips

Confirm the flange style, bolt spacing, and port dimensions before installation. Clean both mating surfaces thoroughly so the gasket can seat evenly, and inspect the flange for warping, corrosion, or pitting that could affect sealing. This gasket is specified for listed GM applications including Chevrolet Impala and Pontiac Grand Prix exhaust repairs, so verify the exact vehicle configuration, such as dual exhaust or single exhaust notes, before ordering.

Quality Assurance

Walker designs this gasket for use with OE exhaust components and Walker aftermarket replacement parts. The construction and dimensions are specified to support a proper exhaust seal on the listed applications, including Buick, Chevrolet, Pontiac, Oldsmobile, and Saturn models.