Graco 193778 Diaphragm Shaft
$48.00
Available to Order
The Graco 193778 Diaphragm Shaft is an OEM internal shaft designed to drive and support diaphragm movement in Graco diaphragm‑type pumps. It ensures smooth fluid displacement and restores pump reliability when installed.
- Part Number: 193778
- Function: Internal shaft supporting diaphragm operation in pump housing
- Compatibility: Diaphragm‑type pumps, fluid transfer rigs, spray systems
- Installation: Direct OEM replacement during pump rebuild or maintenance
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 193778 Diaphragm Shaft – Compatibility & Details
Compatible Applications & Equipment
- Graco diaphragm‑type pumps – connects and drives diaphragm assembly inside pump housing.
- Fluid transfer and coating rigs where diaphragm shaft integrity is critical for pump operation.
- Industrial sprayers or process systems using diaphragm technology for safe fluid handling under pressure.
- Maintenance or rebuild of diaphragm pumps – replacement shaft to ensure proper internal operation.
Product Overview
The Graco 193778 Diaphragm Shaft is an OEM replacement part that forms the internal shaft supporting the diaphragm mechanism in Graco pump assemblies. It ensures correct motion and alignment of diaphragm components, enabling reliable fluid displacement and pump function. Installing this shaft helps restore pump performance and prevents operational failures caused by worn or damaged internal shafts.
Specifications
| Specification | Details |
|---|---|
| Part Number | 193778 |
| Component Type | Diaphragm Shaft / Internal Pump Shaft |
| Intended Use | Drive and support diaphragm movement in pump housing |
| Compatible Equipment Type | Diaphragm‑type pumps, fluid transfer systems, sprayers |
| OEM Original Part | Yes — intended as genuine replacement shaft for Graco pumps |
| Installation | Internal installation during pump rebuild or maintenance |
Key Features
- OEM‑Specified Shaft: Manufactured to original Graco specifications for correct alignment and fitment.
- Ensures Proper Diaphragm Movement: Provides smooth and accurate diaphragm motion to maintain fluid flow.
- Durable Internal Component: Built to withstand repeated cycles and pressure loads without failure.
- Restores Pump Functionality: Replacing worn shaft helps recover lost pump performance and reliability.
- Simple Replacement: Fits directly into existing pump housing during rebuild without modifications.
Frequently Asked Questions
The 193778 shaft drives and supports the diaphragm mechanism inside Graco pumps, enabling proper fluid displacement and pump operation.
Replace the shaft if the pump shows reduced fluid flow, diaphragm misalignment, leaks or irregular performance — signs of internal wear or damage.
No — the shaft is designed as a direct OEM replacement and installs internally during pump rebuild or maintenance without special modification.
No reviews yet. Be the first to review this product!
