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Graco 101970 Pipe Plug

Graco 101970 Pipe Plug is a genuine OEM part designed to seal unused hydraulic or fluid ports in GH-series sprayer manifolds. Its headless design ensures a clean, flush fit and leak-free performance.

  • Thread Size: 1/4"-18 NPT (male)
  • Design: Headless, flush-fit style
  • Fits: GH733, GH833, GH933, GH2570, GH5040
  • Use: Seals unused manifold or hydraulic ports

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Graco 101970 Pipe Plug – Overview & Compatibility

Compatible Machines

The Graco 101970 Pipe Plug is used across multiple GH “Big Rig” hydraulic systems. Confirm against your unit’s parts diagram before ordering.

  • Graco GH733
  • Graco GH833
  • Graco GH933
  • Graco GH2570
  • Graco GH5040

Product Summary

Genuine Graco 101970 Pipe Plug — a headless 1/4"-18 NPT plug used to seal unused ports in hydraulic or fluid manifolds for professional sprayer assemblies. The low-profile, flush design helps prevent interference in tight layouts and supports leak-free, pressure-holding performance.

Key Specifications

Part Number 101970
Thread 1/4"-18 NPT (male)
Head Style Headless (flush-fit/low profile)
Typical Use Seals unused hydraulic / fluid ports on GH-series sprayer manifolds and related assemblies
Fitment Note Appears in GH-series OEM kit and parts lists; always verify against your exact model/serial parts diagram

Why Choose This Plug

  • Flush, headless design minimizes interference around hoses and fittings
  • Correct 1/4"-18 NPT thread spec for GH-series hydraulic/manifold ports
  • Supports leak prevention and reliable pressure holding
  • OEM part ensures proper fit and serviceability

Installation Tips

  • Clean and inspect port threads before installation
  • Use an appropriate thread sealant compatible with the sprayed material
  • Tighten to manufacturer-recommended torque; do not over-tighten
  • Re-check for leaks after first pressurization

Frequently Asked Questions

The plug uses 1/4"-18 NPT male threads for sealing unused hydraulic/fluid ports.

Yes. It is a headless style plug designed to sit low and flush, helping in tight manifold areas.

It appears in GH-series parts/OEM kit diagrams, including GH733, GH833, GH933, GH2570, and GH5040. Always verify against your unit’s parts list for exact placement and quantity.

Use of non-OEM plugs is not recommended. OEM parts help ensure fit, corrosion resistance, and correct sealing geometry for high-pressure systems.

Clean threads thoroughly, apply a compatible thread sealant sparingly, torque appropriately, and verify for leaks after pressurizing the system.

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