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Graco 15K888 Ring, Support, Piston, 320-629

Graco 15K888 Support Ring — OEM piston support ring sized for 320–629 series for alignment and wear protection.

  • Brand: Graco
  • Type: Piston Support Ring
  • Application: Piston assembly support (320–629)
  • Fit: OEM 15K888
  • Material: Precision metal

$210
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Compatible Machines / Systems

  • OEM Graco piston assemblies in the 320–629 range requiring a support ring to maintain piston alignment. Based on OEM parts reference guides. ([graco.com parts manual data])
Manufacturer Graco
Model Number 15K888
Type Piston Support Ring
Center Section Material Precision metal
Port Size Application dependent
Air Inlet N/A
Wetted Material Metal
Compatible Media Piston assembly internals

Frequently Asked Questions

What does this support ring do?

Supports and centers the piston within the cylinder, aiding smooth movement and reducing wear.

Which piston sizes use this?

Designed for pistons in the 320–629 range per OEM specifications.([graco.com parts manual data])

Can it prevent piston wear?

Yes, it helps maintain alignment, reducing uneven wear on piston walls.

Is this part reusable?

Inspect for deformation — if worn, replacement is recommended to maintain performance.

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