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Graco 109499 Packing O-Ring

The Graco 109499 Packing O‑Ring is a genuine OEM seal designed for reliable performance in select Graco industrial pumps.

  • Material: PTFE for high chemical resistance
  • Function: Intake valve / cylinder seal
  • Compatibility: Graco 3A9013A Pump, L250cc series, and select industrial pumps
  • OEM Part: Ensures correct fit and durability

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Graco 109499 Packing O-Ring – Genuine OEM Seal

This is the genuine Graco part number 109499, designed as a factory-approved replacement sealing O-ring (also referenced as a PTFE intake-valve or cylinder seal) for select Graco fluid-handling and industrial pump systems. It is manufactured to the precise tolerances and material specifications required for reliable performance and compatibility.

Compatible Machines

  • Graco Model Graco 3A9013A Pump – uses part 109499 for the intake valve seal.
  • Graco 74:1 Premier / Dura-Flo 1100 Series (fluid section) – lists 109499 as a TEFLON O-ring at top & bottom of cylinder.
  • Various Graco Industrial fluid pumps where “109499 – SEAL, intake valve; PTFE” is shown in parts breakdowns.

Key Features & Benefits

Feature Benefit
Factory OEM part Ensures correct fit, material compatibility and preserves warranty eligibility.
PTFE sealing material High chemical resistance and long life in demanding pump applications.
Specified for intake valve / cylinder use Matches original design location and function in fluid-section assemblies.

Installation Tips

  • Confirm your machine’s model and serial number to ensure compatibility.
  • Clean the groove or bore thoroughly where the O-ring seats, removing old sealant or debris.
  • Lightly lubricate the O-ring with a compatible grease to ease fit-in and reduce initial wear.
  • Inspect the seal for correct orientation and alignment; improper seating may cause leakage or pump damage.
  • After installation, run a pressure test to validate that the seal holds and there are no abnormalities.

Frequently Asked Questions

Part 109499 serves as a sealing O-ring (often PTFE) in the fluid section of Graco pumps—typically around the intake valve or cylinder area—ensuring fluid does not bypass and the pump retains pressure.

Not necessarily. While 109499 is used in several industrial Graco pumps, you must verify the model’s parts list and schematics for your specific machine. Ordering the correct part number prevents misfit or poor performance.

Replacement frequency depends on usage, fluid type, pressure and maintenance practices. If you notice leakage, loss of pressure, or visible wear, replace the O-ring immediately to avoid downtime.

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