Graco 100737 Plug Pipe
$9.40
In Stock
The Graco 100737 Plug, Pipe is a genuine ½″ NPT plug designed to seal unused ports on Graco sprayers and pump systems, ensuring leak-free operation and system protection.
- Part Number: 100737
- Thread Size: ½″ NPT
- Use: Seals unused ports in pump lowers, manifolds, and return lines
- Compatibility: Fits multiple Graco sprayers and fluid systems where 100737 is listed
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Genuine OEM Part
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Graco 100737 — Plug, Pipe (½″ NPT) Overview
Genuine Graco 100737 Plug, Pipe used to securely seal an unused ½″ NPT port in Graco fluid systems, manifolds, and pump/lower assemblies. Always verify the thread spec and part number in your equipment manual before ordering.
Compatible Machines
This is a general-purpose Graco plug. It fits equipment that explicitly lists 100737 (½″ NPT plug) in its parts diagram. Common placements include pump lowers, manifolds, return/drain ports, and service ports.
- Any Graco sprayer/system that specifies part 100737 for a ½″ NPT port.
- Examples where a ½″ NPT pipe plug is commonly called out: spray pump lowers, hopper/manifold assemblies, and fluid return/drain ports (confirm in your specific model’s manual).
Key Details
| Attribute | Detail |
|---|---|
| Graco Part # | 100737 |
| Description | Plug, Pipe — seals an unused port to prevent leaks/contamination. |
| Thread | ½″ NPT (verify against your equipment manual/parts list). |
| Typical Location | Pump lower, manifold block, drain/return, or service port (where specified). |
| Fitment Guidance | Match part number and thread spec in your model’s diagram; do not substitute different thread standards. |
Why Use Genuine Graco 100737?
- Correct thread engagement for leak-free sealing of ½″ NPT ports.
- System integrity: reduces contamination risk when ports are capped.
- Service-friendly: easy to remove/reinstall during maintenance.
Installation Notes
- Clean threads and apply an appropriate thread sealant approved for your fluid.
- Do not overtighten—follow torque guidance in your model’s manual.
- Recheck for leaks after pressurizing the system.
Frequently Asked Questions
It fits if your parts diagram specifically lists 100737 (½″ NPT). Because this plug is used across many Graco systems, always confirm by model number and parts list before purchasing.
½″ NPT. Using a different standard (e.g., BSPT) can cause leaks or damage. Match the thread specification shown in your equipment manual.
Commonly on manifold blocks, pump lowers, and return/drain ports—any unused ½″ NPT port designated to be sealed by part 100737.
Use the exact Graco 100737 when specified. Substitutions can vary by material, pressure rating, and thread accuracy, potentially causing leaks or warranty issues.
Clean and dry the threads, apply approved thread sealant, tighten to the recommended torque, then test under operating pressure and re-inspect after initial use.
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