Heavy-duty UHMW HD piston engineered for high-volume Graco airless sprayer pumps, delivering stable pressure and reliable reciprocating performance under extreme operating loads.
The Graco 01/0055-1Q/88 Piston 13.887 x 0.194 UHMW HD is designed for select Graco high-pressure airless sprayer pump assemblies requiring a 13.887” piston with 0.194 specification and UHMW HD construction for heavy-duty performance.
The Graco 01/0055-1Q/88 is a precision-engineered piston component used in high-capacity airless spray pump systems. Manufactured from UHMW HD (Ultra-High Molecular Weight High Density material), it provides exceptional wear resistance, low friction operation, and long service life under extreme pressure conditions.
With a large-format specification of 13.887 x 0.194, this piston ensures accurate sealing and smooth reciprocating movement within compatible Graco pump cylinders, supporting consistent high-volume spray output and stable hydraulic performance.
It is commonly used in heavy-duty pump rebuilds and industrial maintenance applications where OEM-grade reliability is required.
Used in large-scale industrial coatings, heavy construction painting, infrastructure protection, and high-output finishing operations where Graco airless systems operate under continuous demanding workloads.
