Graco 115347 Packing U-Cup
$41.80
Available to Order
The Graco 115347 Packing U‑Cup is a premium internal sealing component used in Graco spray guns and fluid‑pumps — designed to seal pistons or fluid chambers and prevent leaks, ensuring stable pressure and smooth fluid delivery.
- OEM U‑Cup packing/seal for Graco equipment
- Seals piston/rod or fluid chamber — prevents leaks and fluid bypass
- Used in spray guns, airless sprayers, pumps and fluid‑handling systems
- Essential for maintenance or rebuilds when seals wear or leak
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
About the Graco 115347 Packing U-Cup
The Graco 115347 Packing U-Cup is a genuine OEM-specified internal seal (U-Cup style) — used to seal piston/rod assemblies or fluid-chambers inside Graco spray guns, pumps and fluid-handling equipment, preventing leaks and ensuring reliable pressure/fluid containment.
Compatible Assemblies / Use-Cases
- Graco spray-guns, airless sprayers and fluid-pumps that use piston/rod + cylinder mechanisms and require internal sealing
- Industrial coatings, painting or fluid-delivery systems under Graco — especially where high pressure or solvent exposure demands robust packing/seal integrity
- Replacement / maintenance — when the original seal is worn out, leaking, or during overhaul to restore proper sealing and performance
Product Details
| Part Number | 115347 |
|---|---|
| Description | Packing U-Cup / Internal Seal for fluid-chamber or piston/rod assembly (OEM) |
| Function | Seals piston/rod or fluid chamber to prevent leaks, maintain pressure and ensure smooth fluid delivery |
| Typical Use | Spray guns, airless sprayers, pumps and fluid-handling equipment requiring reliable internal sealing |
| OEM Status | Original Graco part — ensures correct fitment, material, tolerances and sealing performance |
Why Use This U-Cup Packing?
- Delivers reliable fluid-tight sealing under pressure — prevents leaks and fluid bypass
- Ensures consistent fluid delivery and spray performance by maintaining internal pressure integrity
- OEM-specified — exact fit and compatibility with Graco housings and internal parts
- Essential for maintenance or rebuilds — replacing worn/damaged seals to restore equipment life and performance
Frequently Asked Questions
It seals the piston or fluid chamber interface — preventing fluid leaks and maintaining pressure inside spray or pump systems.
Yes — 115347 is listed among official Graco spare-parts catalogs as “Packing, U-Cup” for fluid-handling and spray equipment.
Replace it if you observe fluid leakage, pressure loss, poor spray/pump performance, or during routine maintenance or overhaul — to ensure continued sealing reliability.
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