Stainless steel piston seat designed for Graco Dura-Flo 1800 lower assemblies, helping maintain reliable sealing performance and consistent fluid pressure in high-demand pump systems.
| Compatible Equipment | Series / Type |
|---|---|
| Graco Dura-Flo 1800 | 290 cc Lower Units |
| Lower Part No. 222801 | Dura-Flo 1800 |
| Lower Part No. 222802 | Dura-Flo 1800 |
| Lower Part No. 222803 | Dura-Flo 1800 |
| Lower Part No. 222804 | Dura-Flo 1800 |
| Lower Part No. 222805 | Dura-Flo 1800 |
| Lower Part No. 222806 | Dura-Flo 1800 |
The Graco 189439 Seat, Piston, SST is a genuine OEM replacement component used in Graco Dura-Flo 1800 lower pump assemblies. This precision-machined piston seat plays a critical role in sealing performance and fluid control during pump operation.
Constructed from durable stainless steel (SST), the component is designed to withstand demanding industrial environments while helping maintain consistent pressure and efficient fluid transfer in high-pressure coating and pumping systems.
Engineered to original Graco specifications, the piston seat supports proper sealing contact within the piston assembly, reducing wear and contributing to reliable long-term pump performance.
