Graco 183669 Piston Spacer

The Graco 183669 Piston Spacer is a precision OEM component designed to maintain correct piston alignment inside the pump assembly, helping ensure smooth operation and consistent pressure output.

OEM-quality fit for compatible Graco airless sprayers
Supports proper piston spacing and alignment
Helps reduce internal wear and extend pump life

$234.29

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Description

Precision Piston Spacer for Consistent Pump Alignment

Compatible Machines

Graco Ultra Series airless paint sprayers
Graco Mark Series sprayers
Graco GM / GH Series sprayers
Other Graco airless paint sprayers using compatible piston rod assemblies

The Graco 183669 Piston Spacer is a precision-engineered component designed to maintain correct spacing and alignment within the piston and displacement pump assembly. By ensuring accurate piston positioning, this spacer helps reduce uneven wear, supports smooth pump movement, and contributes to consistent pressure output during spraying operations.

Manufactured to meet original Graco specifications, this piston spacer is built for durability in high-pressure environments and is suitable for both professional contractors and maintenance technicians performing routine pump servicing or rebuilds.

Key Features

Feature	Benefit
Precision-Machined Design	Maintains accurate piston spacing for smooth and stable pump operation
OEM Fit & Finish	Designed to match original Graco pump assemblies without modification
Durable Construction	Withstands high pressure and repeated cycling inside the pump
Supports Pump Longevity	Helps minimize internal wear and prevents misalignment-related damage

Installation & Usage Tips

Always depressurize and disconnect the sprayer before disassembly.
Inspect the piston rod, packings, and cylinder for wear when replacing the spacer.
Install the piston spacer in the correct orientation as per the pump assembly layout.
Lubricate moving components lightly to ensure smooth initial operation.

Frequently Asked Questions

The piston spacer maintains proper distance and alignment between piston components, ensuring smooth pump movement and consistent pressure during operation.

Yes, the Graco 183669 piston spacer is manufactured to OEM standards for proper fit and reliable performance in compatible Graco sprayers.

The piston spacer should be replaced during pump rebuilds, when internal components are serviced, or if uneven wear or alignment issues are observed.

Yes, a worn or damaged spacer can lead to misalignment, increased internal wear, pressure fluctuation, and reduced overall pump efficiency.