

Replacement nylon piston for Graco 50 Series pumps, maintaining stable pressure and smooth fluid movement for consistent airless spray performance.
The Graco U60199 1/2" Nylon Piston for 50 Series Pumps is a precision-engineered replacement component designed to maintain consistent pressure and smooth fluid movement in high-demand airless spray systems. Built with durable 1/2 NYL HD construction, it enhances pump reliability and reduces wear under continuous operation.
Designed for compatibility with 42-427-50SER configurations, it supports stable spray output and efficient performance in professional coating applications.