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Graco 25D161 Piston Repair Kit

Graco 25D161 PTFE Piston Repair Kit is designed for 145cc lower pumps to restore piston sealing, prevent fluid bypass, and ensure reliable high-pressure performance.

  • OEM PTFE piston repair kit
  • Fits Graco 145cc lower sections
  • Prevents piston leakage and bypass
  • Ideal for pump rebuilds and preventive maintenance

$204.5
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Compatible Machines

  • Graco Xtreme™ Pumps with 145cc Lower Sections
  • Graco XP Series Proportioners using 145cc fluid sections
  • Graco high-capacity airless sprayer systems specifying 145cc PTFE piston repair kits
  • Other Graco systems requiring PTFE piston replacement for 145cc lower pumps

Piston Repair Kit – 145cc Lower Pumps

The Graco 25D161 Piston Repair Kit is an OEM PTFE replacement kit designed for 145cc lower pump sections. It restores piston sealing, prevents fluid bypass, and ensures reliable high-pressure operation for industrial spray applications.

Key Features

  • Part Type: PTFE piston repair kit
  • Material: PTFE for chemical resistance and durability
  • Pump Size: Designed for 145cc lower sections
  • Function: Restores piston sealing and prevents fluid bypass
  • Quality: OEM direct replacement components

Service Application Table

Install Location Piston assembly in 145cc 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 145cc lower pumps, restoring proper sealing and preventing fluid bypass.

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

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

Verify your pump lower displacement is 145cc and check the kit number in your Graco parts manual before purchase.

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