

The Graco 255519 Complete Seal Kit contains the essential sealing and packing components required to rebuild and maintain the L500SS Check-Mate® 500 cc Stainless Steel Lower Pump, helping restore performance and prevent leaks.
The Graco 255519 Kit, Cmpl. Seal, L500SS is a genuine OEM complete seal kit designed for rebuilding and maintaining the L500SS 500 cc Stainless Steel Check-Mate® displacement pump. This kit contains the essential sealing and packing components required to restore pump performance, maintain pressure integrity, and help prevent fluid leakage during operation.
The Graco 255519 Complete Seal Kit is designed for equipment utilizing the L500SS Stainless Steel Check-Mate® 500 cc Lower Pump, including:
The complete seal kit includes a range of replacement wear components commonly required during pump servicing and overhaul procedures.
| Component Type | Purpose |
|---|---|
| O-Rings | Provide reliable sealing between mating components. |
| V-Packings | Help maintain pressure while reducing fluid bypass. |
| PTFE Packings | Offer chemical resistance and extended service life. |
| Piston Guide Bearing | Supports piston alignment during operation. |
| Acetal Seals | Assist in maintaining proper sealing performance. |
| Male & Female Packing Glands | Secure and support packing assemblies. |
| Piston Seal | Maintains pump efficiency and fluid control. |
| Valve Seal | Helps prevent leakage and supports proper valve function. |
| Part Number | 255519 |
|---|---|
| Product Type | Complete Seal Kit |
| Designed For | L500SS Check-Mate® Lower Pump |
| Pump Capacity | 500 cc |
| Material Compatibility | Stainless Steel Pump Assemblies |
| Manufacturer | Graco |