Hill | MK5 Piston Assembly Kit

MK5 Piston Assembly Kit | Hill – replacement components for Hill MK5 hand pump maintenance

The MK5 Piston Assembly Kit from Hill provides essential replacement parts for maintaining Hill MK5 hand pumps used with PCP air rifles. This maintenance kit contains a green seal and a brass piston with fitting, the core components responsible for pressure generation and air-tight operation in the pump system.

Construction and materials

The kit comprises two precision-engineered components: a small green seal ring and a brass piston assembly with integrated fitting. The brass piston converts mechanical force into compressed air, while the green seal ensures an airtight connection throughout the compression cycle. These parts are manufactured to exact Hill MK5 specifications for guaranteed compatibility.

Application and use

This maintenance kit serves PCP air rifle users who perform regular servicing on their Hill MK5 hand pumps. Installation requires disassembly of the pump head and complete replacement of the piston assembly. The kit addresses common wear points that can cause air leakage and pressure loss during PCP cylinder filling operations.

Integration and compatibility

The components are exclusively designed for Hill MK5 hand pumps and maintain compatibility with the pump's maximum pressure rating. The precision-matched parts ensure proper fit without modification, preserving the pump's original performance specifications for reliable PCP air rifle charging.

Maintenance and lifecycle

Regular replacement according to Hill's maintenance guidelines prevents performance degradation and extends pump lifespan. The frequency of replacement depends on usage intensity, with high-volume users requiring more frequent servicing to maintain consistent high-pressure delivery without leakage.