Description
The S&S Cycle Bellows Acceleration Pump Seal (11-2279) is an essential replacement component for maintaining precise fuel delivery and throttle response in your carburetor. Over time, pump seals degrade from fuel exposure and thermal cycling, causing lean stumbles and hesitation during acceleration—issues that compromise both performance and rideability. This OEM-quality replacement restores your pump’s original function without requiring a full carburetor rebuild.
S&S engineered this seal from premium elastomer materials that resist fuel degradation and temperature extremes, ensuring long service life and consistent performance. Installation is straightforward as a standalone service item or as part of a complete rebuild kit.
- Bellows acceleration pump seal
- OEM-equivalent specification
- Premium elastomer construction
- Resists fuel degradation
- Made in U.S.A.
- MPN: 11-2279
- Fits S&S carburetors
- Bolt-on replacement






