Fel-Pro 9558 Exhaust Pipe Flange Gasket - Manifold To Front Pipe

Fel-Pro 9558 Exhaust Pipe Flange Gasket

Fel-Pro 9558 is an exhaust pipe flange gasket built for sealing the manifold-to-front-pipe connection on select Cadillac applications. It uses application-specific materials and a premium-grade construction to support a tight exhaust seal where heat, vibration, and flange movement can cause leaks.

Compatible with Cadillac Commercial Chassis, DeVille, Fleetwood, and Eldorado applications across 1949-1967 model years, this gasket is sized for a single round port with a 1.969-inch inside diameter and an irregular gasket shape. The 0.120-inch thickness and 2-bolt layout support a precise flange seal in the exhaust system.

Key Features

• Fel-Pro part number 9558 exhaust pipe flange gasket
• Premium-grade exhaust sealing component
• Application-specific material selection for vehicle sealing
• 1 round port with 1.969-inch inside diameter
• 0.120-inch thickness for flange sealing
• 2-bolt hole configuration
• Irregular gasket shape for the listed exhaust flange application

Detailed Description

Fel-Pro 9558 is engineered for the exhaust manifold to front pipe joint found on select Cadillac models, including Cadillac DeVille, Cadillac Eldorado, Cadillac Fleetwood, and Cadillac Commercial Chassis applications. The gasket is built to match the sealing surface requirements of the flange connection, helping maintain exhaust system integrity at a common leak point. Fel-Pro’s sealing approach focuses on vehicle-specific fitment and durable materials, which is important in exhaust service where thermal cycling and joint movement can affect seal quality. If you are replacing a worn exhaust flange gasket on a Cadillac exhaust system, Fel-Pro 9558 provides a direct-fit sealing solution for the listed applications.

This part cross-references EN1048 and EX8 for the same application.

What It Helps Address

• Exhaust leaks at the manifold-to-front-pipe flange
• Noise from a failing exhaust joint
• Soot or residue around the flange connection
• Loss of sealing caused by heat cycling and vibration
• Service replacement for deteriorated exhaust gasket material

Installation Notes and Tips

Confirm the flange style, port shape, and bolt pattern before installation. Clean both mating surfaces thoroughly so the gasket can seat evenly, and inspect the flange for warping, corrosion, or damage that could affect sealing. Use the listed fitment to verify the correct Cadillac application, including 1957-1967 Cadillac Commercial Chassis, 1957-1967 Cadillac DeVille, 1965-1967 Cadillac Fleetwood, and 1957-1966 Cadillac Eldorado, all at the manifold to front pipe position. For earlier applications, verify 1949-1956 Cadillac Commercial Chassis and 1953-1956 Cadillac DeVille and Eldorado fitments marked N/A in the position field.

Quality Assurance

Fel-Pro is known for application-specific sealing solutions used in professional engine and exhaust service. Fel-Pro 9558 is built to support 100% vehicle sealing when installed on the correct listed application and matched to the proper flange design.