Terex
Seal kit for Terex RT780
This seal kit restores the sealing capabilities of hydraulic cylinders on the Terex RT780 rough-terrain crane. It contains the necessary internal and external seals to prevent fluid leaks and maintain system pressure.
Compatible models
Specifications
- Part number
- 4216212
- Brand
- Terex
The seal kit 4216212 is a collection of gaskets and seals designed to restore the integrity of hydraulic components within the Terex RT780 rough-terrain crane. By replacing worn or damaged sealing elements, this kit addresses issues related to fluid loss and pressure drops, ensuring that hydraulic cylinders maintain their intended performance levels during operation. It includes various components such as o-rings, lip seals, wiper seals, and backup rings, which are required to service specific actuators within the machine's hydraulic system.
This kit is compatible with the Terex RT780 crane. It is used to service cylinders responsible for functions such as boom movement, outrigger deployment, and steering. Proper installation of these seals is necessary to ensure that the hydraulic system remains free of leaks and operates with the required precision and power. Regular maintenance involving the replacement of these seals helps manage the internal and external sealing surfaces of the cylinders, supporting the overall functionality of the hydraulic circuits.
Seal kits generally serve to maintain the pressure boundaries within hydraulic cylinders. They prevent fluid from bypassing the piston or escaping the cylinder housing, which is necessary for the consistent operation of heavy machinery actuators.

