S&S Cycle Heavy Duty Clutch Diaphragm Spring for 1998-2016 Harley-Davidson Big Twin
A stronger clutch spring means a more confident power transfer, sharper engagement feel, and less chance of clutch slip when you push the engine hard. This heavy duty diaphragm spring drops straight into your stock clutch assembly and delivers 25 percent more clamping force than the factory spring – the same pressure as the Screamin’ Eagle heavy-duty unit – without requiring a complete clutch rebuild.
Key Features
- 25 percent stronger than stock diaphragm spring at 380 lbs clamping pressure
- Matches Screamin’ Eagle heavy-duty spring specification
- Direct bolt-in replacement – no machining or special tools required
- Compatible with S&S Variable Pressure Plate and stock clutch plates
- Made in the USA by S&S Cycle
Technical Specifications
- Clamping Pressure: 380 lbs
- Increase Over Stock: 25 percent
- Type: Diaphragm spring
- Fitment: 1998-2016 Harley-Davidson Big Twin Models (excludes 2014-2017 models with A&S Clutch and 2017 M8)
- Origin: Made in USA
Fitment Notes
- Fits 1998-2016 Harley-Davidson Big Twin models
- Not compatible with 2014-2017 models equipped with the A&S clutch or 2017 Milwaukee-Eight models
- Confirm clutch type before ordering – A&S clutch-equipped models require a different spring
- Review the Fitment tab for complete year and model breakdown
