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Graco 101579 Pin

Graco 101579 Pin is a genuine OEM roll pin used to secure internal linkages in Graco pumps, ensuring reliable alignment and performance.

  • Part Type: Roll/Retaining Pin
  • Size: 1/8" × 3/4" (3.2 mm × 19 mm)
  • Used In: Fire-Ball 300 & President Pump series
  • OEM Quality: Genuine Graco replacement part

$15.95
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Compatible Machines — Verified

  • Graco Fire-Ball 300 (5:1 ratio) — selected oil pump models (e.g., 203-872, 203-857, 204-254, 222-087)
  • Graco Fire-Ball 300 (15:1 ratio) — models such as 206405 (Series K) and related series sizes
  • Graco Fire-Ball 300 (50:1 ratio) — grease pump variants and packages (various model sizes)
  • Graco President Pump (with Priming Piston) — various models that list 101579 in the parts diagram

Product Overview

Graco 101579 Pin is a genuine OEM roll/retaining pin used to secure internal linkages (shafts/rods) in Graco pump assemblies. It helps maintain alignment and prevents drift or loosening under load.

Key Specs

Part Number 101579
Type Roll Pin / Retaining Pin
Nominal Size Approx. 1/8 in. (3.2 mm) diameter × 3/4 in. (19 mm) length
Typical Location Pump drive/linkage areas (e.g., connecting rods, levers) on Fire-Ball 300 and President families
Genuine/OEM Yes — Graco original replacement hardware

Why Choose OEM?

  • Correct fit to factory tolerances for pump longevity
  • Reliable retention under vibration and cyclical loads
  • Fast maintenance—direct swap using standard pin drivers

Installation & Fit Notes

  • Match the pin in your parts diagram (look for ref. “101579”).
  • Inspect mating holes/bores; replace worn components to ensure tight fit.
  • Drive the roll pin squarely; avoid flaring ends which can hinder service.

Frequently Asked Questions

Yes—if your model’s parts list calls out 101579. The pin is used across many Fire-Ball 300 (5:1, 15:1, 50:1) and President pumps, but always verify against your unit’s serial/series diagram.

You may see linkage misalignment, premature wear, and reduced pump performance. Replacing with the correct OEM pin restores proper retention and smooth operation.

Roll pins are press-fit; no torque value is applied. Use an appropriate drift/punch and ensure bores are clean and to spec before installation.

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