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Graco 15M381 Cylinder Spacer Dynastar

Graco 15M381 Dynastar Cylinder Spacer — OEM replacement spacer to set proper distance between cylinder assemblies for smooth operation.

  • Brand: Graco
  • Type: Cylinder Spacer
  • Application: Dynastar pump cylinder assembly
  • Fit: OEM part 15M381
  • Material: Precision metal OEM component

$72
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Compatible Machines / Systems

  • OEM Dynastar pump cylinder assemblies where a spacer is required to maintain correct piston/cylinder alignment and preload.
Manufacturer Graco
Model Number 15M381
Type Cylinder Spacer
Center Section Material Metal (precision machined)
Port Size N/A
Air Inlet N/A
Wetted Material Not applicable
Compatible Media Internal pump mechanics

Frequently Asked Questions

What does a cylinder spacer do?

It sets and maintains the correct spacing between cylinders in a Dynastar pump assembly, ensuring smooth reciprocation and alignment.

Is this an OEM part?

Yes — 15M381 is a genuine Graco replacement spacer.

Can wearing spacers cause issues?

Yes — worn spacers can lead to misalignment, vibration, and increased wear on pistons/cylinders.

When should this be replaced?

Replace during rebuilds or if deformation and wear are visible.

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