OEM back-up washer designed to support sealing components and maintain alignment in Graco high-pressure airless sprayer pump assemblies.
| Compatible Equipment | Application |
|---|---|
| Graco Ultra Max II Series | Airless paint sprayer pump assemblies |
| Graco GMAX II Series | Gas-powered high-pressure spraying systems |
| Graco ST Max II Series | Professional contractor sprayer pumps |
| Graco Mark Series Sprayers | Heavy-duty texture and coating applications |
| Select Graco Pump Fluid Sections | Seal support and internal pump reinforcement |
The Graco 186652 Back-Up Washer is an OEM pump component designed to provide structural support and load distribution within high-pressure Graco airless sprayer assemblies. It works alongside sealing elements to maintain proper alignment and ensure consistent sealing performance under demanding operating conditions.
Engineered to OEM specifications, the back-up washer helps prevent seal deformation, reduces wear on critical pump components, and improves overall system durability. It plays an important role in maintaining stable pressure during continuous spraying operations.
This component is commonly replaced during pump rebuilds or routine maintenance to restore optimal sealing performance and extend equipment service life.
The Graco 186652 Back-Up Washer is used in professional airless sprayer systems where internal pump stability and sealing integrity are critical for consistent performance.
