GRACO Collar Piston - (SKU: 557191)The GRACO 557191 Collar Piston is a small, precision engineered component designed for use within GRACO industrial equipment, particularly in lubrication and fluid handling systems. Its material is not specified in available sources, but it is intended to function as a critical internal part, likely aiding in the movement or sealing of pistons within pumps or spray systems. Key Features: Collar Piston Designed for use with GRACO industrial equipment;

Supports laser marking functionality

Follow manufacturer guidelines for reservoir and sensor installation

The GRACO 15H474 is a plug designed for use with transducers in GRACO equipment

Intrinsically safe power cable

ensuring reliable and automated lubrication cycles

ensuring proper system operation and integration

Follow all safety and maintenance guidelines provided in the manual

Compatible with GRACO Dura-Flo pump lowers (exact model compatibility should be verified with manual or specialist)

Ensure proper alignment and seating of check balls to prevent leaks and ensure reliable operation

Keep a maintenance log for service intervals and part replacements

Antifreeze 2 Part

Its primary function is to provide a reliable seal within the pump assembly