The Graco 255536 Kit, Piston, L250 (All) is a genuine replacement piston repair kit designed for servicing Graco L250 lower pump assemblies. This kit helps restore pump efficiency, maintain proper sealing performance, and reduce downtime caused by worn piston components. It is suitable for rebuilding and maintaining a wide range of Graco industrial fluid handling pumps equipped with L250 lowers.
Compatible Machines
The Graco 255536 Piston Kit is compatible with the following L250 lower pump assemblies and systems:
- L250CS (Carbon Steel Severe Duty) lower pumps
- L250CM (Carbon Steel MaxLife) lower pumps
- L250SS (Stainless Steel Severe Duty) lower pumps
- L250SM (Stainless Steel MaxLife) lower pumps
- Graco Check-Mate 250 pump systems
- Graco Dura-Flo 250 pump systems
- Graco King package systems utilizing L250 lowers
- Graco supply and transfer pump packages equipped with L250 lower assemblies
- Other Graco industrial fluid handling systems built around L250 lower units
Kit Components
| Component | Quantity |
| Packing O-Ring | 2 |
| Piston Guide Bearing CM250 | 1 |
| Piston Seal | 1 |
| Seal for 8 cm / 10 cm Models | 1 |
Product Features
- Genuine Graco replacement piston rebuild kit.
- Designed specifically for all L250 lower pump assemblies.
- Helps restore sealing performance and pump pressure.
- Reduces fluid leakage caused by worn piston components.
- Supports preventive maintenance and pump rebuild programs.
- Suitable for demanding industrial fluid transfer applications.
Why Replace the Piston Kit?
Over time, piston seals, guide bearings, and O-rings can wear due to continuous operation and exposure to abrasive materials. Replacing these components with the Graco 255536 Kit, Piston, L250 (All) helps maintain pump efficiency, improve sealing integrity, and extend the service life of the lower assembly.
Frequently Asked Questions
The Graco 255536 Kit, Piston, L250 (All) is used to rebuild and maintain the piston section of Graco L250 lower pump assemblies, helping restore sealing and pumping performance.
This kit is compatible with L250CS, L250CM, L250SS, and L250SM lower pump assemblies.
Yes. The kit includes piston seals, packing O-rings, a guide bearing, and additional sealing components required for piston maintenance.
Yes, the 255536 piston kit is a genuine Graco replacement part designed for use with compatible L250 lower assemblies.
