Structural housing that secures and aligns the piston seal inside Graco airless pump fluid sections, ensuring stable compression and reliable high-pressure operation.
| Compatible Equipment | Function of 18C891 Piston, Seal Housing |
|---|---|
| Graco Airless Paint Sprayer Pumps | Houses and supports piston seal assembly for controlled high-pressure operation |
| Professional Contractor Spray Units | Maintains structural alignment of piston sealing components under load |
| Graco Pump Fluid Section Assemblies | Provides sealing chamber support to ensure stable fluid compression and flow control |
The Graco 18C891 Piston, Seal Housing is a structural pump component designed to secure and support the piston seal within Graco airless spray pump fluid sections. It provides a stable housing environment that allows the piston seal to function effectively under high-pressure reciprocating motion.
This component plays a key role in maintaining pump integrity by ensuring correct alignment and compression of sealing elements. Manufactured to OEM standards, it helps reduce internal wear, supports consistent pressure output, and contributes to long-term pump durability in demanding spraying applications.
