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

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Description

Compatible Machines / Systems

OEM Dynastar pump cylinder assemblies where a spacer is required to maintain correct piston/cylinder alignment and preload. :contentReference[oaicite:11]{index=11}

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. :contentReference[oaicite:12]{index=12}

Is this an OEM part?

Yes — 15M381 is a genuine Graco replacement spacer. :contentReference[oaicite:13]{index=13}

Can wearing spacers cause issues?

Yes — worn spacers can lead to misalignment, vibration, and increased wear on pistons/cylinders. :contentReference[oaicite:14]{index=14}

When should this be replaced?

Replace during rebuilds or if deformation and wear are visible. :contentReference[oaicite:15]{index=15}

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