S&S Cycle Billet Transmission Case Trap Door Kit for S&S Big Twin Transmission Cases
A transmission case trap door kit that includes bearings and hardware simplifies the build process by delivering every component needed for a clean, complete installation in a single order. For custom Big Twin builds, using components matched to the transmission case manufacturer ensures correct dimensional fit and long-term assembly integrity under street or performance conditions.
Key Features
- Billet construction for superior strength and precision-machined appearance
- Complete kit includes bearings and all required hardware
- Designed for S&S Big Twin transmission cases
- Made in the USA
Technical Specifications
- Construction: Billet
- Included: Trap door, bearings, all hardware
- Application: S&S Big Twin transmission cases
- Origin: Made in the USA
Fitment Notes
- Designed for S&S Big Twin transmission cases only
- Confirm transmission case compatibility before ordering
- Review the Fitment tab for complete compatibility information





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