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Graco 164622 Packing O-Ring

The Graco 164622 Packing O-Ring is a high-quality PTFE (Teflon) seal used to maintain pressure and prevent leaks in airless paint sprayers. It ensures reliable performance and long service life.

  • Made of durable PTFE for excellent chemical resistance
  • Used in pump and packing assemblies of various Graco sprayers
  • Ensures tight sealing and consistent spray pressure
  • Fits Ultra and GMAX series models

$54.35
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Overview & Compatibility – Graco 164622 Packing O-Ring

The Graco 164622 Packing O-Ring is a precision PTFE (Teflon) seal used in the pump/packing area of professional airless sprayers to maintain pressure and prevent fluid leaks.

Compatible Machines

  • • Graco Ultra 395
  • • Graco Ultra 495
  • • Graco Ultra 595
  • • Graco Ultra Max II 695
  • • Graco Ultra Max II 795
  • • Graco Ultra Max II 1095
  • • Graco GMAX 3900
  • • Graco GMAX 5900

Key Specs

Part Number 164622
Item Type Packing O-Ring / sealing ring
Material PTFE (Teflon) for chemical resistance and low friction
Function Maintains pump pressure, prevents internal fluid bypass/leaks
Typical Location Pump/packing stack or cylinder sealing area (model-dependent)

Why Choose This Packing O-Ring

  • PTFE construction for excellent solvent/paint compatibility
  • Low friction for smoother pump operation and longer wear life
  • Precision fit in Graco pump assemblies to preserve working pressure
  • Helps reduce leaks and improve spray consistency

Fit & Installation Tips

  • Confirm by model parts manual before ordering; locations vary by pump family.
  • Inspect mating surfaces; replace worn packings and lubricate per Graco guidance during assembly.
  • After installation, perform a pressure test to verify sealing performance.

Frequently Asked Questions

PTFE resists common coatings/solvents, has low friction for smoother piston movement, and holds shape under pressure—key for maintaining seal integrity in high-pressure pumps.

Match your model and pump variant against the official Graco parts manual. Look under the pump/packing stack diagram and verify the reference for part 164622 before purchase.

Replace during a packing service or if you observe pressure loss, poor atomization, or leakage around the packing/cylinder. Always inspect related packings and rings concurrently.

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