The Graco 255551 Kit, Piston, L100CS/L100CM is a genuine repair kit designed for servicing 100cc Check-Mate displacement pumps. This kit contains the piston sealing and wear components required to restore pump performance, maintain proper sealing, and reduce downtime during maintenance.
Compatible Machines
This piston repair kit is designed for the following Graco pump models:
- Graco Check-Mate L100CS 100cc Displacement Pump
- Graco Check-Mate L100CM 100cc Displacement Pump
- Industrial adhesive pumping systems equipped with L100CS pumps
- Industrial adhesive pumping systems equipped with L100CM pumps
- Bulk material transfer systems using L100CS or L100CM lower pumps
- Extrusion and dispensing systems utilizing L100CS or L100CM pumps
- Industrial coating and finishing equipment fitted with L100CS or L100CM displacement pumps
- Check-Mate pump packages built around 100cc L100CS lower pumps
- Check-Mate pump packages built around 100cc L100CM lower pumps
Kit Features
| Part Number | 255551 |
| Product Type | Piston Repair Kit |
| Compatible Pump Size | 100cc |
| Compatible Pump Models | L100CS and L100CM |
| Application | Piston maintenance and pump rebuilding |
What's Included in the Kit
The Graco 255551 Kit, Piston, L100CS/L100CM includes the critical piston sealing and wear components commonly replaced during scheduled maintenance and pump rebuild procedures.
- Piston seals
- Piston seats
- PTFE packings
- PTFE O-rings
- Guide bearing components
- Additional piston sealing hardware and wear parts
Benefits of Replacing Worn Piston Components
- Helps maintain proper fluid sealing and pressure performance
- Reduces internal leakage and material loss
- Improves pump efficiency and reliability
- Extends service life of the displacement pump
- Minimizes unexpected downtime during production
Pump Compatibility Notes
The Graco 255551 Kit, Piston, L100CS/L100CM is specifically engineered for L100CS and L100CM pump configurations. It is not intended for stainless steel L100SS or L100SM pump models, which require different repair components.
Frequently Asked Questions
The kit is used to rebuild and maintain the piston assembly in compatible 100cc Check-Mate pumps, helping restore sealing performance and operating efficiency.
This repair kit is designed for Graco Check-Mate L100CS and L100CM 100cc displacement pumps.
These pumps are commonly found in industrial adhesive systems, sealant transfer equipment, bulk material handling systems, extrusion equipment, and industrial coating applications.
No. This kit is intended only for L100CS and L100CM pump models. Stainless steel variants require different repair kits.
