Graco 255554 Kit, Piston, L250 (All) is a genuine rebuild kit designed to restore sealing performance and efficiency in L250 Check-Mate displacement pumps. Ideal for preventative maintenance and pump repairs.
The Graco 255554 Kit, Piston, L250 (All) is a genuine Graco rebuild kit designed for servicing the piston assembly in 250cc Check-Mate displacement pumps. This kit contains the critical piston sealing and wear components needed to restore pump efficiency, maintain pressure performance, and reduce fluid bypass caused by worn internal parts.
This piston kit is compatible with the following 250cc Check-Mate lower pump models:
These lower pumps are commonly found in Graco bulk fluid transfer systems, industrial pumping packages, extrusion equipment, sealant supply systems, and adhesive dispensing applications that utilize 250cc Check-Mate technology.
The 255554 Piston Kit is used during routine maintenance and pump rebuilding procedures. Replacing worn piston seals and related components helps maintain proper pump pressure, improve sealing performance, and extend the service life of the displacement pump.
| Industrial Fluid Transfer | Transfer of medium to high-viscosity materials |
| Adhesive Systems | Supply and dispensing of industrial adhesives |
| Sealant Equipment | Pumping and delivery of sealant materials |
| Extrusion Systems | Material feed and processing applications |
| Bulk Supply Systems | Continuous material transfer operations |
| Part Number | Description |
|---|---|
| 255536 | Piston Kit, L250 (All) |
| 255528 | Throat Seal Kit, L250CS |
| 255529 | Throat Seal Kit, L250SS |
| 255530 | Throat Seal Kit, L250CM / L250SM |
| 255561–255564 | Intake Valve Seal Kits for L250 Pumps |
