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Graco 15B661 Seal Installation Tool

$75.89
$82.75
Save 8%
In Stock
Part #: 15B661

The Graco 15B661 Seal Installation Tool is an OEM tool designed to safely install throat and packing seals in Graco pump assemblies without damaging them.

  • Ensures precise seal seating
  • Prevents damage to seal lips during installation
  • Durable metal construction for repeated use
  • Speeds up maintenance and reduces errors
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Detailed Overview of the Graco 15B661 Seal Installation Tool

Purpose & Function

The Graco 15B661 Seal Installation Tool is a specialized OEM tool designed to assist in the precise installation of throat seals and packing components inside Graco pump assemblies.

How It’s Used

  • During pump seal replacement, the tool is inserted into the throat bore before inserting soft seals, protecting them from damaging contact with threads. 
  • It provides a firm backing surface so the seal can be gently tapped in using a socket and mallet, without deforming the seal lips. 
  • Once the seal is seated correctly, the tool is removed, and the retaining nut or other hardware can be installed safely.

Key Features & Specifications

Part Number 15B661
Component Name Seal Installation Tool
Design Purpose Insert or back up seals without damaging their lips
Material Durable metal designed to withstand tapping force
Benefits Prevents damage to seals during installation, ensures correct seating, speeds up maintenance

Why This Tool Is Important

When servicing Graco pumps, incorrectly installed seals can lead to leaks, seal failure, or shortened service life. The 15B661 tool ensures that new seals go in straight and undamaged, significantly reducing the risk of installation errors and improving long-term pump reliability.

Maintenance & Usage Tips

  • Always clean the seal bore and the tool before use to avoid contamination.
  • Lubricate the new seal lightly before installation to ease sliding and to protect the lips.
  • Use a socket that fits the tool correctly and tap gently—do not use excessive force.
  • After seating the seal, remove the tool carefully to avoid disturbing the newly installed seal.

Frequently Asked Questions

It protects the delicate lips of throat and packing seals during installation, preventing damage and ensuring a proper seal.

Yes — the tool is made from durable material and is designed for repeated use during maintenance cycles.

It’s highly recommended for installing throat seals and certain packing components where precision and protection are critical, especially in high-pressure systems.

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