GRACO Seat, Piston, SST - (SKU: 189439) compatible with standard 55-gallon garbage

compatible with standard 55-gallon garbage bag liners for easy cleanup

Designed for high-output

and agricultural equipment maintenance and operation

Carbon steel or similar alloy (inferred from typical GRACO hydraulic motor housings)

GRACO Seat, Piston, SST - (SKU: 189439) compatible with standard 55-gallon garbageThe GRACO 189439 Seat, Piston, SST is a stainless steel piston seat component designed for use in GRACO displacement pumps. It serves as a critical sealing and guiding element within the pump assembly, ensuring reliable operation and fluid containment. Key Features: Piston Seat Stainless Steel (SST) GRACO displacement pumps (specific models not listed in available data) Durable stainless steel construction for longevity Critical sealing function