Description
A leaking rear tappet block gasket can compromise your Big Twin’s reliability and lead to costly oil seepage during critical rides or track sessions. This OEM-spec James Gasket delivers a factory-correct seal without guesswork, ensuring your cam change or rebuild stays dry and performs as intended. James complete kits eliminate the hassle of sourcing individual seals—everything you need arrives ready to install.
- Manufacturer: James Gasket
- MPN: 18633-48-A/C
- Application: Big Twin engines
- Type: Rear tappet block gasket
- Complete rebuild kit included
- OEM-spec fitment
- Made in U.S.A.
- Bolt-on installation
- Neatly packaged for easy identification









