Graco 256866 Kit, Complete Seal, L100Ss

The Graco 256866 Kit, Complete Seal, L100SS is a genuine replacement seal kit designed for rebuilding and maintaining L100SS Check-Mate® 100cc stainless steel displacement pumps. This kit contains the essential sealing and packing components required to restore pump efficiency, reduce leakage, and extend service life in demanding industrial fluid handling applications.

Compatible Machines

This seal kit is used in systems equipped with the L100SS Check-Mate 100cc stainless steel lower pump, including:

• Check-Mate® Supply Systems with L100SS Lower
• Bulk Fluid Transfer Systems utilizing L100SS Pumps
• Industrial Adhesive Supply Systems with L100SS Lower Assemblies
• Sealant Supply Systems equipped with L100SS Pumps
• Industrial Coating Supply Systems using L100SS Displacement Pumps
• Custom Fluid Handling Systems fitted with L100SS Severe Duty Lowers

Key Features

• Designed specifically for L100SS Severe Duty displacement pumps.
• Helps restore sealing performance and reduce fluid leakage.
• Contains critical packing and seal components required for pump rebuilding.
• Supports reliable operation in demanding adhesive, sealant, coating, and fluid transfer applications.
• Genuine Graco replacement kit for proper fit and performance.

Typical Components Included

The kit contains multiple sealing and packing components commonly required during a complete lower pump rebuild, including:

• O-rings
• PTFE O-rings
• V-packings
• PTFE V-packings
• Male and female packing glands
• Piston seals
• Valve seals
• Piston guide bearings
• Foot valve packing components

Benefits of Replacing Worn Seals

Regular replacement of worn sealing components helps maintain consistent pump pressure, improves operational reliability, minimizes downtime, and protects internal pump components from premature wear. Using the correct seal kit ensures the lower pump continues to perform as designed in high-demand production environments.

Related L100SS Service Kits

Frequently Asked Questions