Graco 255554 Kit, Piston, L250 (All)
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.
- Fits all L250 pump models
- Compatible with L250CS, L250CM, L250SS, and L250SM
- Helps restore pressure and pump performance
- Reduces internal leakage and wear
- Genuine Graco replacement kit
- Designed for 250cc Check-Mate lowers
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.
Compatible Machines & Pump Models
This piston kit is compatible with the following 250cc Check-Mate lower pump models:
- L250CS – Carbon Steel Severe Duty Lower
- L250CM – Carbon Steel MaxLife Lower
- L250SS – Stainless Steel Severe Duty Lower
- L250SM – Stainless Steel MaxLife Lower
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.
Kit Purpose
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.
Key Benefits
- Genuine Graco replacement piston rebuild kit.
- Designed specifically for all L250 lower pump variants.
- Helps restore pump performance and pressure consistency.
- Reduces internal leakage caused by worn piston seals.
- Supports preventative maintenance programs.
- Helps extend displacement pump service life.
Typical Applications
| 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 |
Related L250 Service Kits
| 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 |
Frequently Asked Questions
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