ЗАГЛУШКА Caterpillar 1733389

The Hydraulic Pump Head Piston Stopper is a structural limit device located inside the pump head of axial piston-type hydraulic pumps. It ensures that the pistons do not travel beyond their stroke range during operation. This stopper plays a role in protecting internal components such as pistons, cylinder block, and swashplate from potential damage due to excessive movement caused by pressure spikes or misalignment.Attributes:• Restricts the piston's maximum travel within the pump.• Protects internal surfaces of the pump head and swashplate.• Ensures consistent piston stroke for accurate displacement control.Applications: The Hydraulic Pump Head Piston Stopper is internally housed within the hydraulic pump head, aligned with the piston bore to maintain consistent pump displacement and supports overall pump reliability.