

Replacement piston kit for Graco 100-series airless sprayers, restoring stable pressure and smooth pump operation using a precision 11.28 mm nylon design.
Always confirm model compatibility using OEM parts documentation before installation.
The Graco LCF100 Kit, Piston, 100, Nylon, 11.28Mm is an OEM-grade replacement piston assembly designed for Graco 100-series airless spray pump systems. It is engineered to maintain consistent fluid pressure, smooth pump operation, and reliable sealing performance in compact spray applications.
Built with durable nylon construction, this piston provides a balance of strength, low friction, and wear resistance, making it suitable for light to medium-duty coating tasks. The 11.28 mm precision diameter ensures accurate fitment within compatible Graco lower pump assemblies, supporting stable and efficient spray output.
This kit is commonly used as a service replacement component to restore pump performance, reduce pressure loss, and extend the operational life of Graco 100-series equipment.