Fel-Pro 61379 Exhaust Pipe Flange Gasket - Manifold To Front Pipe

Fel-Pro Exhaust Pipe Flange Gasket 61379

Fel-Pro 61379 is a premium exhaust pipe flange gasket built for the manifold-to-front-pipe connection. It uses application-specific sealing materials and a 0.032 in. / 0.9 mm thickness to support a tight exhaust seal where heat and vibration are constant.

Compatible with Chevrolet Express 2500, Chevrolet Silverado 2500 HD, GMC Savana 3500, and other listed applications, this gasket is sized for a single round port with a 2.050 in. inside diameter and a 3-bolt flange pattern.

Key Features

• Fel-Pro exhaust pipe flange gasket, part number 61379
• Premium grade construction for manifold-to-front-pipe sealing
• 0.032 in. / 0.9 mm thickness for controlled compression
• Single round port with 2.050 in. inside diameter
• 3-bolt irregular gasket shape for listed exhaust connections
• Application-specific sealing materials for vehicle-specific fitment

Detailed Description

Fel-Pro 61379 is an exhaust pipe flange gasket engineered for the exhaust manifold to front pipe joint on a wide range of GM trucks and vans. It is listed for Chevrolet Express 2500 and Express 3500, Silverado 2500 HD and Silverado 3500 HD, GMC Savana 2500 and Savana 3500, Sierra 2500 HD and Sierra 3500 HD, plus select Classic models and the 2006 Hummer H1. This part cross-references MAHLE F31897 and F31903 for the same application.

The gasket’s round port design, 3-bolt layout, and premium sealing material selection help maintain a consistent seal at a high-heat exhaust flange. Fel-Pro’s vehicle-specific approach makes this a direct-fit service part for exhaust repair work on Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, and related applications.

What It Helps Fix

• Exhaust leaks at the manifold-to-front-pipe flange
• Noise from a leaking exhaust joint
• Soot marks or residue around the flange connection
• Loss of sealing after gasket wear or heat cycling
• Service issues on GM exhaust systems with a 3-bolt round-port flange

Installation Notes and Tips

Confirm the flange pattern, port shape, and port diameter before installation. Clean both sealing surfaces thoroughly so the gasket can seat evenly, and inspect the flange for warping, corrosion, or damage that could affect sealing. Verify the application against the vehicle’s exhaust layout, especially on Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, and Express van models.

Quality Assurance

Fel-Pro gaskets are built around application-specific sealing materials and vehicle-focused fitment to support dependable exhaust sealing. Part number 61379 is produced as a premium gasket solution for the listed GM applications.