High-precision Nylon HD piston engineered to maintain consistent pressure and smooth reciprocating action in compatible Graco airless spray pump systems.
The Graco 01/0055-1U/89 Piston 11.580 0.194 Nylon HD is designed for select Graco airless sprayer pump assemblies requiring an 11.580” piston with 0.194 specification and Nylon HD construction for reliable high-pressure performance.
The Graco 01/0055-1U/89 is a precision-engineered piston component used in professional airless spray pump systems. Manufactured from Nylon HD, it delivers high strength, low friction operation, and long-lasting wear resistance under continuous hydraulic load.
With exact dimensions of 11.580 x 0.194, this piston ensures precise sealing and smooth reciprocating motion inside compatible Graco pump cylinders, maintaining stable pressure output and consistent spray performance in demanding applications.
It is commonly used in pump rebuilds and maintenance operations where OEM-grade fitment and reliable performance are required.
Used in industrial painting, protective coatings, commercial construction finishing, and maintenance environments where Graco airless sprayers operate under continuous high-pressure conditions.
