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Graco 255533 Kit, Piston, L100Cs/L100Cm

The Graco 255533 Kit, Piston, L100CS/L100CM is a genuine piston seal repair kit designed to restore sealing performance and maintain efficient pump operation in compatible L-Series pumps.

  • OEM Graco piston seal repair kit
  • Part Number: 255533
  • Fits L100CS and L100CM pumps
  • Helps maintain pump pressure and efficiency
  • Reduces internal leakage and material bypass
  • Ideal for routine pump maintenance and rebuilds

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The Graco 255533 Kit, Piston, L100CS/L100CM is a genuine replacement piston seal kit designed to maintain the performance and reliability of Graco L-Series pumps. This kit includes the essential piston sealing components required during pump maintenance to help restore pressure, reduce internal leakage, and extend the service life of the fluid section.

Compatible Machines & Pumps

This piston seal kit is specifically designed for the following Graco pump models:

  • Graco L100CS Pump – Severe Duty Carbon Steel Pump
  • Graco L100CM Pump – MaxLife Carbon Steel Pump

These pumps are commonly installed on industrial fluid handling and material transfer systems used for high-viscosity materials, adhesives, sealants, coatings, and dispensing applications.

Product Features

Part Number 255533
Product Type Piston Seal Repair Kit
Compatible Pumps L100CS and L100CM
Application Piston seal maintenance and pump rebuilding
Function Restores sealing performance and helps maintain operating pressure
Manufacturer Graco

What's Included in the Kit?

The Graco 255533 kit contains the piston sealing components required for routine maintenance and repair of compatible L-Series pumps. Components may include:

  • Piston seal components
  • PTFE sealing elements
  • O-rings and packing components
  • Piston guide and related sealing hardware

Benefits of Replacing Piston Seals

  • Helps maintain consistent pump pressure.
  • Reduces internal material bypass and leakage.
  • Improves pumping efficiency.
  • Supports longer pump service life.
  • Minimizes unexpected downtime during operation.

Applications

Pumps utilizing this repair kit are commonly found in industrial material transfer and dispensing systems handling sealants, adhesives, coatings, and other high-viscosity materials. Regular replacement of piston seals helps maintain reliable pump performance in demanding production environments.

Frequently Asked Questions

The kit contains piston sealing components used to service and rebuild the piston section of compatible L100CS and L100CM pumps.

The kit is designed specifically for Graco L100CS and L100CM pumps.

Replacing worn piston seals helps maintain proper pressure, improve pump efficiency, reduce leakage, and extend equipment service life.

No. The 255533 kit is a piston seal repair kit intended for piston maintenance. Additional rebuild kits may be required for full pump overhauls depending on service requirements.

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