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Graco 15K890 Ring, Support, Piston, 630-960

Graco 15K890 Piston Support Ring — OEM‑grade support ring for larger piston sizes (630–960) to keep alignment and reduce wear.

  • Brand: Graco
  • Type: Piston Support Ring
  • Application: Large piston support
  • Fit: OEM 15K890 (630–960)
  • Material: Precision metal

$260
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Compatible Machines / Systems

  • OEM Graco equipment and pumps with pistons sized 630–960 where 15K890 support rings are specified. Aligns and supports pistons during motion. (OEM parts guides)
Manufacturer Graco
Model Number 15K890
Type Piston Support Ring
Center Section Material Precision metal
Port Size Application dependent
Air Inlet N/A
Wetted Material Metal
Compatible Media Internal piston mechanism

Frequently Asked Questions

Why use a support ring?

It aligns and stabilizes the piston to prevent binding and wear in the cylinder.

What pistons use this?

Pistons within the 630–960 size range per OEM specs.([graco.com parts manual data])

Does this affect performance?

Correct support rings help maintain smooth pistoning and consistent output.

Can I reuse old support rings?

Check for wear — replace if distorted or worn to avoid performance loss.

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