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Graco 188558 U-Cup Seal

The Graco 188558 Seal U‑Cup ensures precise internal sealing in spray gun assemblies for consistent fluid delivery.

  • OEM U‑cup seal
  • Prevents fluid leakage
  • Durable material for long-term use
  • Fits Graco spray gun assemblies

List Price: $59
You save: $4.9 (8.31%)
Sale Price: $54.1
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Graco 188558 Seal U‑Cup – High-Performance Spray Gun Sealing Component

Compatible Machines

  • Graco airless spray guns
  • Professional Graco spraying systems
  • Industrial Graco fluid control units

The Graco 188558 Seal U‑Cup provides reliable internal sealing, preventing leaks and maintaining optimal spray performance in Graco spray gun assemblies.

Part Number 188558
Description U‑cup seal for spray gun assembly
Function Prevents fluid bypass and leakage
Application Graco spray gun assemblies

Key Features

  • OEM U‑cup design
  • Prevents internal leaks
  • Durable elastomer material
  • Maintains consistent spray performance

Installation & Usage Tips

  • Clean surfaces before installing the U‑cup.
  • Ensure proper seating and orientation.
  • Inspect regularly and replace when worn.
  • Check spray output after installation.

Frequently Asked Questions

Yes, it is a genuine OEM U‑cup seal from Graco.

By preventing internal leaks, it ensures consistent fluid delivery and spray pattern.

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