GRACO Collar Piston - (SKU: 557191)

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;

Designed for integration with GRACO machinery

compatible with GRACO G3 series lubrication systems

Designed for stability and vibration reduction

and leak-free connections are required

ensuring clean and reliable operation of GRACO airless sprayers and similar equipment

Ensure system is depressurized before replacing the air plate

Using genuine GRACO parts like the 115074 BEARING

PTFE ball (ball material inferred from typical Husky 2150 pump configurations)

Perform routine checks on hose condition and pump operation

Regularly inspect the pump assembly for leaks or wear

The GRACO 26C966 kit includes a stainless steel (SST) frame and rods

The GRACO 223357 is a piston gland/packing stack