Graco 220915 Piston Repair Kit – Product Overview & Compatibility
Compatible Machines
- Compatibility depends on specific Graco piston pump model
- Verify fit using your pump’s official Graco parts manual
- Match the original piston assembly part number before purchase
- This kit is not universal and should only be installed on approved models
Product Description
The Graco 220915 Piston Repair Kit is designed to restore proper sealing and performance to compatible Graco piston-style fluid pumps. It replaces worn internal piston components that commonly degrade due to pressure, chemical exposure, and continuous operation. Proper installation of this kit helps eliminate leakage, restores consistent pressure, and extends overall pump service life.
Primary Function
| Function | Piston assembly restoration |
| Application Type | Industrial fluid handling & pumping systems |
| Pump Type | Piston-style fluid pumps |
| Maintenance Purpose | Leak sealing, pressure recovery, internal wear repair |
| Replacement Category | Internal piston rebuild component |
Common Symptoms Indicating Replacement
- Fluid leaking past the piston chamber
- Loss of pressure during operation
- Inconsistent fluid output
- Excessive internal wear visible during inspection
- Reduced pump efficiency under load
Installation Notes
- Always depressurize the system before servicing
- Confirm exact pump model and serial range prior to installation
- Use manufacturer torque specifications when reassembling
- Lubricate seals during installation to prevent dry start damage
Frequently Asked Questions
It rebuilds the internal piston assembly of compatible Graco pumps to restore sealing performance, pressure stability, and fluid flow efficiency.
No. This kit only fits specific piston pump models. Compatibility must be verified through the official Graco parts breakdown for your exact pump.
Internal leaking, pressure drops, inconsistent pump output, and worn piston seals are key indicators that replacement is required.
Installation should only be performed by trained technicians familiar with high-pressure fluid equipment and Graco service procedures.
