The Multiquip 03418500 is a genuine OEM Shaft Stub 1-7/16 Diameter C30HD Z790 designed for the Mayco C30HD concrete pump. As a direct OEM replacement sourced through Multiquip's authorized parts network, this stub shaft is manufactured to the exact dimensions and material tolerances required by the C30HD pump drivetrain. Keeping the correct shaft stub in service ensures the pump's drive components remain properly coupled and aligned during operation.
Key Features
- OEM-Grade Material and Dimensional Accuracy — Manufactured to the precise 1-7/16-inch diameter specification required by the C30HD drivetrain, ensuring correct load-bearing performance under continuous pump cycling.
- Direct OEM Replacement — Engineered as a drop-in replacement for the C30HD, matching the original shaft geometry for straightforward installation without secondary machining or fitting.
- Confirmed C30HD Fitment — Validated for use on the Mayco C30HD concrete pump, removing guesswork when sourcing critical drivetrain components.
- Drivetrain Integrity — A correctly seated stub shaft maintains proper coupling alignment between drive and driven components, preventing premature wear on bearings, seals, and adjacent shaft assemblies.
- Genuine Multiquip OEM Part — Supplied as an authorized Multiquip replacement, backed by OEM traceability for confident, accurate servicing of the C30HD.
The stub shaft is a short, precision-machined shaft segment that transmits rotational force between a drive source and a driven component within the pump assembly. In a concrete pump like the C30HD, the stub shaft is a critical link in the drivetrain — if it wears, bends, or breaks, the pump loses its ability to transfer power efficiently, leading to vibration, misalignment, and potential damage to connected components. Replacing a worn stub shaft with the correct OEM part restores proper power transmission and protects the broader drivetrain from cascading wear.
Part Details
| Part Number | 03418500 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Shaft Stub 1-7/16 Diameter C30HD Z790 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HD |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
