Graco 115251 Seal U-Cup

About the Graco 115251 U‑Cup Seal

The Graco 115251 U‑Cup Seal is an OEM‑specified fluid‑seal used to seal piston or rod assemblies inside cylinders of Graco pumps and fluid‑handling equipment — ensuring leak‑proof operation under pressure.

Compatible Assemblies / Use‑Cases

• Graco pump assemblies, displacement pumps or fluid‑handling systems using piston/rod + cylinder mechanism
• Spray, paint or coating systems requiring internal fluid‑sealing to maintain pressure and avoid blow‑by
• Any Graco equipment whose parts diagram or service manual specifies “Seal, U‑Cup – 115251” :contentReference[oaicite:7]{index=7}
• Maintenance or rebuild work — replacing worn, damaged, or leaking seals with correct OEM‑grade U‑Cup seal for reliable performance :contentReference[oaicite:8]{index=8}

Product Details

Why Use This U‑Cup Seal?

• Provides reliable fluid‑tight sealing inside pump or cylinder — prevents leaks and blow‑by
• Maintains proper pressure and fluid delivery performance in spray, paint or coating systems
• OEM‑specified — correct dimension, material, and compatibility with Graco assemblies
• Essential for maintenance or rebuilds when original seals degrade or fail, to restore original performance :contentReference[oaicite:10]{index=10}

Frequently Asked Questions