Nylon Fuel Bowl Screw Gasket 10-Pack

The Holley Nylon Fuel Bowl Screw Gasket 10-Pack (part number 108-98-10) is a direct-fit replacement consumable designed specifically for Holley carburetors. These nylon gaskets seal the fuel bowl drain and filler screws, preventing fuel leakage and maintaining proper carburetor operation across a wide range of engine builds and performance applications.

Each gasket measures 0.219 inches in inner diameter with a thickness of 0.063 inches—dimensions engineered to create a reliable seal under fuel pressure and temperature cycling. Nylon composition offers chemical resistance to ethanol-blend fuels and standard gasoline while maintaining flexibility across typical underhood temperature ranges. The ten-pack quantity addresses both immediate replacement needs and provides spares for future carburetor service intervals, which is critical for enthusiasts maintaining multiple vehicles or frequently rebuilding carburetors during tuning work.

Fuel bowl gaskets are wear items that degrade from repeated installation cycles and fuel exposure. Drivers and builders restoring vintage Holley carburetors, upgrading from stock fuel systems, or performing routine carburetor maintenance should treat these gaskets as replaceable consumables. Original equipment deterioration often goes unnoticed until fuel seepage appears around the fuel bowl area—catching this early prevents fuel odors, potential fire hazards, and carburetor performance issues tied to fuel loss.

Holley carburetors remain the performance standard across street, circle track, and drag racing applications. This gasket pack ensures correct replacement parts are on hand for any Holley fuel bowl service, whether performing routine maintenance or troubleshooting a fuel system that shows signs of leakage. Proper sealing at the fuel bowl is non-negotiable for safe, consistent engine performance.