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Graco 100361 Plug Pipe

The Graco 100361 Plug, Pipe is an OEM replacement plug designed to seal unused ports on Graco systems, ensuring leak-free performance and protection from contaminants.

  • Part Number: 100361
  • Thread Type: 1/2-14 NPT (female)
  • Material: Stainless steel (typical)
  • Used On: Hydra-Clean Pressure Washers (Models 2040, 2540, 3540, 4043)
  • Function: Seals open fluid or air ports to prevent leaks

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Graco 100361 Plug, Pipe – Overview & Compatibility

Compatible Machines

  • Graco 2040 (800-699) Hydra-Clean Pressure Washer
  • Graco 2540 (800-700) Hydra-Clean Pressure Washer
  • Graco 3540 (800-706) Hydra-Clean Pressure Washer
  • Graco 4043 (800-707) Hydra-Clean Pressure Washer

What is the Graco 100361 Plug, Pipe?

The Graco 100361 Plug, Pipe is an OEM pipe plug used to seal unused ports in Graco fluid or pneumatic assemblies. It helps prevent leaks and contamination, maintaining system integrity across compatible units and assemblies.

Key Specifications

OEM Part Graco 100361 (Plug, Pipe)
Thread 1/2-14 NPT (female/headless style) as listed in Graco parts literature
Typical Material Commonly supplied in stainless steel by vendors (verify per build lot)
Primary Function Seals unused ports on manifolds, blocks, housings to prevent fluid or air leaks
Category Genuine Graco replacement part

Why use the 100361 plug?

  • Leak prevention: closes spare or service ports securely.
  • System cleanliness: helps keep debris and contaminants out.
  • OEM fit: correct thread form for listed Graco assemblies.

Installation Tips

  • Inspect female threads for burrs or damage before installation.
  • Apply suitable thread sealant (per fluid type and temperature rating).
  • Hand-start, then tighten to spec—do not overtighten to avoid cracking housings.
  • Pressurize and check for seepage; re-seat or replace if needed.

Frequently Asked Questions

It matches the thread spec, but OEM parts ensure the correct profile, material, and sealing performance for Graco assemblies. For warranty and longevity, OEM is recommended.

Typically no. Apply a compatible sealant (or PTFE tape if approved) for your fluid, temperature, and pressure. Follow your service manual or Graco guidance.

Check the parts breakdown for your model. Look for a listing of 100361 or a 1/2-14 NPT plug in the manifold/block diagram. When in doubt, share your model number with us for verification.

Pressure depends on the assembly and material. The plug should meet or exceed the rated pressure of the ported component. Always follow the assembly’s pressure specification.

No—use the exact thread spec (1/2-14 NPT here). Substitutions risk leaks, cross-threading, or component damage.

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