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Graco 15A978 Tip Gasket

The Graco 15A978 Tip Gasket provides a secure, leak-resistant seal between the spray gun and tip, ensuring consistent spray performance.

  • OEM gasket for direct replacement
  • Prevents fluid bypass and leakage
  • Resistant to coatings, solvents, and abrasion
  • Quick and easy installation during tip maintenance

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Graco 15A978 Tip Gasket – Product Overview

Compatible Systems

System / Model Type Description
Graco Airless Spray Guns Gun tip connections where leak‑free sealing between the gun and spray tip is essential
Graco RAC X & XV Series Sprayers High‑efficiency spray tip systems where the gasket ensures proper sealing and tip performance
Graco Maintenance & Repair Kits Replacement part used during tip service or when tip leaking or poor seal is observed

Product Description

The Graco 15A978 Tip Gasket is an OEM‑specified seal designed to provide a secure, leak‑resistant interface between the spray gun body and the spray tip assembly. It helps maintain optimum fluid flow, prevent bypass leakage, and ensure consistent spray performance.

Crafted to precise tolerances using materials compatible with painting fluids, solvent systems and coatings, the 15A978 gasket supports long‑term reliability of the tip connection. If a spray tip exhibits leakage, inconsistent pattern, or fluid buildup around the tip base, replacing this gasket restores the seal and improves system performance.

Key Features

  • OEM gasket for direct replacement in Graco spray tip assemblies
  • Precision fit minimizes fluid bypass and tip leakage
  • Material composition designed to resist solvents, coatings and abrasion
  • Supports consistent spray tip performance and pattern quality
  • Economical and quick to install during tip maintenance or rebuilds

Technical Specifications

Part Number 15A978
Component Type Tip Gasket / Seal
Use Case Seals spray gun to tip for leak‑free operation and optimal spray performance
Material Compatible elastomer or sealing compound suitable for fluid spray applications
Function Provides sealing surface, resists fluid bypass and maintains tip alignment
Serviceability Designed for quick replacement when tip seal failure or leakage is detected

Installation & Maintenance Tips

  • Ensure the spray gun is depressurized and fluid supply is turned off before removing the tip.
  • Inspect the tip mounting surface and seating area for damage, debris or fluid swarf before installing the new gasket.
  • Place the 15A978 gasket in position and seat the spray tip firmly to ensure a proper seal—avoid cross‑threading or misalignment.
  • After the tip is reassembled, run the sprayer at low pressure to verify there is no fluid leakage around the tip base.
  • During routine tip maintenance, always inspect the gasket and replace if signs of wear, extrusion, or deformation are present.

Frequently Asked Questions

It creates a tight seal between the spray gun and tip assembly, preventing fluid from leaking out and ensuring consistent spray pattern performance.

Replace the gasket if you notice fluid leaking around the tip, irregular spray pattern, or if the gasket appears damaged, flattened or hardened from use.

No — installation is simple for trained technicians: depressurize the system, remove the tip, clean the seating area, install the new gasket and re‑assemble the tip. Then verify that the sprayer seals properly before full‑scale operation.

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