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Graco 25D158 Piston Repair Kit

Graco 25D158 PTFE Piston Repair Kit is designed for 65cc lower pumps to restore piston sealing, prevent fluid bypass, and ensure smooth high-pressure operation.

  • OEM PTFE piston repair kit
  • Fits Graco 65cc lower sections
  • Prevents piston leakage and bypass
  • Ideal for pump rebuilds and preventive maintenance

$188
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Compatible Machines

  • Graco Xtreme™ Pumps with 65cc Lower Sections
  • Graco XP Series Proportioners using 65cc fluid sections
  • Graco high-capacity airless sprayer systems specifying 65cc PTFE piston repair kits
  • Other Graco systems requiring PTFE piston replacement for 65cc lower pumps

Piston Repair Kit – 65cc Lower Pumps

The Graco 25D158 Piston Repair Kit is an OEM kit designed for 65cc lower pump sections. It restores piston sealing, prevents fluid bypass, and ensures smooth operation for high-pressure industrial spraying applications.

Key Features

  • Part Type: PTFE piston repair kit
  • Material: PTFE for chemical resistance and durability
  • Pump Size: Designed for 65cc lower sections
  • Function: Restores piston sealing and prevents bypass
  • Quality: OEM direct replacement components

Service Application Table

Install Location Piston assembly in 65cc lower section
Used During Lower pump rebuild or piston seal replacement
Corrects Piston leakage and fluid bypass
Recommended Timing During preventive maintenance or when leakage occurs

Frequently Asked Questions

It replaces the PTFE piston assembly components in 65cc lower pumps, restoring proper sealing and preventing fluid bypass.

No. This kit is specifically for piston repair. Throat packing kits are sold separately.

PTFE offers excellent chemical resistance and low friction, providing long-lasting piston performance and smooth operation.

Verify your pump lower displacement is 65cc and check the kit number in your Graco parts manual before purchase.

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