Terex
Plug with O-ring for Terex RT780
This plug with O-ring is designed to seal fluid ports and openings within the hydraulic or lubrication systems of the Terex RT780 rough-terrain crane.
Compatible models
Specifications
- Part number
- 215457
- Brand
- Terex
The 215457 plug with O-ring serves as a sealing component for fluid systems in heavy machinery. It closes ports in valve blocks, housings, or other system components to prevent fluid leakage and the entry of external contaminants. The integrated O-ring ensures a seal between the plug and the mating surface, maintaining system integrity under operating pressures.
This component is specifically designed for use in the Terex RT780 rough-terrain crane. It fits into critical points of the hydraulic or transmission circuits where a secure, leak-free closure is required to maintain system pressure. The part is manufactured to meet the design specifications for the RT780 model, ensuring proper thread engagement and sealing surface contact.
In heavy machinery, plugs are used to block off unused ports or provide access for maintenance and testing. The O-ring acts as a gasket, compensating for minor surface irregularities and providing a barrier against fluid loss. Maintaining these seals is necessary to prevent drops in hydraulic pressure and to protect the internal environment of the machine from debris.

