Graco 277363 3.5 in Piston Seal Repair Kit

Compatible Machines & Pump Families

• 1500 cc Displacement Pumps – Graco pump assemblies that use a 1500 cc lower section where the PTFE piston seal conversion (part #277363) is specified in the parts manual. :contentReference[oaicite:1]{index=1}
• Graco Industrial Sprayers – Systems built around 1500 cc piston pumps that require PTFE seal conversion kits for restoring seal integrity. :contentReference[oaicite:2]{index=2}
• Other Graco Pump Families – Any pump assembly that lists the OEM part #277363 for PTFE piston seal replacement in official Graco documentation. :contentReference[oaicite:3]{index=3}

Product Overview

The Graco 277363 Kit, Repair, Pump Seal is a genuine Graco PTFE‑based piston seal repair kit designed to restore or upgrade the sealing surfaces inside compatible high‑volume airless pump assemblies. PTFE seals offer chemical resistance and reduced wear compared to standard seals. :contentReference[oaicite:4]{index=4}

Specifications & Key Details

Frequently Asked Questions