The Graco 183039 Piston Packing is a high‑pressure seal assembly that minimizes internal leakage around the piston shaft in compatible Graco pump models, helping maintain performance and pressure integrity.
The Graco 183039 Piston Packing is engineered to seal around the piston shaft in airless pump assemblies, helping maintain pressure, reduce leakage, and support consistent spray performance under high‑pressure conditions.
