Graco 168184 Seal Plate

Graco 168184 Seal Plate – Air Motor Valve Seal

Compatible Machines

• Graco King 56:1 Airless Spray Pump (Air Motor Assembly)
• Graco Bulldog Air Motor Assemblies
• Graco Quiet King Air Motor Assemblies
• Other Graco Air Motor and Paint Sprayer Pump Assemblies using the same valve plate design (verify via parts manual)

Product Overview

The Graco 168184 Seal Plate is a precision-made sealing component designed for the valve manifold section of select Graco air motor pump assemblies. It helps maintain proper sealing to prevent air leakage, reduce performance loss, and support smooth operation of air motor systems used in high-pressure paint spraying.

Key Features

• Provides a reliable sealing surface for air motor valve manifolds
• Supports consistent pump pressure and smooth performance
• Durable Buna-N (Nitrile Rubber) sealing material construction
• Recommended for preventive and corrective maintenance

Technical Details

When to Replace

• Visible wear, cracking, or deformation on the seal plate
• Loss of pump pressure caused by internal air leakage
• Routine service during major pump or motor rebuilds

Installation Notes

• Depressurize system before disassembly
• Clean valve manifold and sealing surfaces before placing the new seal
• Verify correct alignment and install according to service manual torque guidelines

Frequently Asked Questions