Description
The S&S Cycle acceleration pump diaphragm spring is a critical wear component that directly impacts your carburetor’s fuel delivery precision during throttle transitions. A worn or compromised diaphragm spring reduces pump responsiveness, leading to flat spots off the line and inconsistent jetting across RPM ranges. Replace this OEM-quality part to restore crisp throttle response and reliable performance on the track or street.
- Manufacturer: S&S Cycle
- Part Number: 11-2278
- Application: Acceleration pump assembly
- Material: Precision spring steel
- Made in U.S.A.
- Bolt-on replacement
- Fits: S&S Cycle carburetors
