

OEM piston seal designed for Graco Dura-Flo 1800 lower assemblies, maintaining reliable pressure control and minimizing leakage in high-pressure pump operation.
| 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 189440 Seal, Piston is a genuine OEM sealing component designed for use in Graco Dura-Flo 1800 lower pump assemblies. This precision-engineered seal helps maintain proper fluid pressure and sealing integrity within the piston assembly during pump operation.
Built for demanding industrial fluid handling applications, the piston seal minimizes leakage, supports smooth pump cycling, and contributes to efficient fluid transfer performance in high-pressure systems.
Manufactured to original Graco specifications, the seal ensures dependable compatibility with select 290 cc lower units while helping extend pump service life and maintain operational reliability.