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Graco 15G478 Bumper, Piston

OEM Graco piston bumper — cushions piston contact in fluid pumps to extend life.

  • Brand: Graco
  • Type: Piston Bumper
  • Application: Shock absorption for pistons
  • Fit/Ports: Pump fluid section piston interface
  • Materials: Wear‑resistant elastomer

$26.19
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Compatible Machines / Systems

  • Fits Graco fluid pump assemblies where piston impact damping is required — check parts diagram for exact models.
Manufacturer Graco
Model Number 15G478
Type Piston Bumper
Center Section Material Elastomer shock absorber
Port Size Piston interface
Air Inlet N/A
Wetted Material Elastomer
Compatible Media Paints / coatings fluids

Frequently Asked Questions

What does the piston bumper do?

It absorbs impact energy when pistons reach end of stroke to reduce wear.

Is it reusable?

It may wear over time and typically is replaced during routine pump maintenance.

Is this an OEM Graco part?

Yes — designed to OEM specifications to match pump performance criteria.

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