Terex
Hydraulic plug for Terex BT4792
This -4 ORB hydraulic plug is used to seal unused ports in the hydraulic systems of Terex machinery, including the BT4792 model.
Parts diagram
Compatible models
Specifications
- Part number
- 517-30005
- Brand
- Terex
The 517-30005 hydraulic plug serves as a closure for unused ports within hydraulic manifolds, valves, and cylinders. It features a -4 ORB (O-Ring Boss) thread design, which utilizes a straight thread and an O-ring to establish a seal. This component is designed to maintain the integrity of the hydraulic circuit by preventing fluid loss from open ports during operation or maintenance procedures.
This part is compatible with the Terex BT4792 crane. It is specifically engineered to interface with -4 size O-ring boss ports to ensure a secure fit within the hydraulic assembly.
In heavy machinery, hydraulic plugs are used to block off circuit branches that are not currently in use or to seal ports during component testing and repair. By ensuring that all ports are properly closed, these plugs help maintain system pressure and prevent environmental contamination from leaking hydraulic fluid.

