Graco 15B328 Seal Spacer
$65.96
In Stock
The Graco 15B328 Seal Spacer maintains precise spacing in piston-pump seal stacks, ensuring correct alignment and longer seal life.
- OEM stainless-steel spacer for durability
- Maintains correct seal compression and alignment
- Prevents premature seal wear
- Supports accurate pump rebuilds and maintenance
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
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Graco 15B328 Seal Spacer – Product Details & Compatibility
Compatible Machines
The Graco 15B328 Seal Spacer is used in Graco piston‑pump assemblies where a precise spacer is required between the seal and other internal components.
- Graco Falcon or similar piston pumps that use a seal/spacer stack inside the cylinder.
- Repair and rebuild kits where the OEM spacer ensures correct internal geometry after seal replacement.
- Graco industrial sprayers or pump modules needing precise tolerances for sealing and alignment.
Product Overview
The Graco 15B328 Seal Spacer is a stainless‑steel (SST) component that positions and supports piston seals in Graco pump cylinders. It ensures correct seal preload and alignment during operation.
Key Features
- OEM stainless‑steel construction for durability and corrosion resistance
- Maintains correct spacing for U‑cup or piston seals
- Helps preserve seal life by ensuring proper sealing geometry
- Enables accurate rebuilds by keeping internal stack tolerances consistent
Technical Specifications
| Part Number | 15B328 |
|---|---|
| Description | Seal Spacer, Stainless Steel |
| Function | Provides precise spacing between seal and piston or other internal components |
| Installed In | Graco piston‑pump cylinders, especially where seal stacks are used |
Usage Notes
- Depressurize the pump and remove the piston rod before installing or replacing the seal spacer.
- Always use the OEM 15B328 spacer to maintain correct seal stack height and prevent premature seal wear.
- Inspect the spacer and machined surfaces for wear, corrosion, or deformation during rebuilds.
- After installation, reassemble the pump and perform a leak and pressure test to ensure proper sealing and function.
Frequently Asked Questions
It establishes a precise gap in the seal stack inside the piston chamber, ensuring correct seal alignment, compression, and longevity.
While another spacer might physically fit, using the OEM 15B328 ensures the exact thickness, material strength, and corrosion resistance required for optimal seal performance.
Replace the spacer if it is visibly worn, corroded, or if your seal rebuild results in poor sealing or premature wear. Inspect it during every major seal service.
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