The Multiquip EM98071 Engine Flange Stub Shaft is a genuine OEM component designed for Mayco C30HDNI and C30HDN series concrete pumps. This is a direct OEM replacement sourced from Multiquip, ensuring the part meets the original design specifications for these Mayco concrete pump models. Confirmed fitment covers the C30HDNI, C30HDNI Precision, C30HDN, and C30HDNI Zenith configurations. When this shaft stub fails or wears, replacing it promptly with the correct OEM part keeps the pump drivetrain operating as intended.
Key Features
- Genuine OEM Shaft Integrity — Manufactured to the original material and dimensional standards required to transmit torque accurately between the engine and pump drive on C30HD-series units.
- Direct-Mount Flange Design — The integrated flange interface aligns directly with the engine output, allowing straightforward installation without improvised adapters or custom fitting.
- Broad C30HD Series Coverage — Fits the C30HDNI, C30HDNI Precision, C30HDN, and C30HDNI Zenith concrete pump variants, covering the most common Mayco C30 configurations in the field.
- Drivetrain Continuity — A worn or damaged stub shaft causes misalignment, vibration, and loss of pump output; replacing it with part EM98071 restores smooth, full-power operation.
- OEM Part Number Confidence — Ordering EM98071 directly guarantees you receive the correct Multiquip-authorized component, eliminating the risk of fitment mismatches common with misidentified drivetrain parts.
The engine flange stub shaft is the short, flanged shaft section that connects the engine output to the pump's drive assembly. It transfers rotational power from the engine into the concrete pump mechanism, and the flange interface ensures the connection remains centered and secure under the continuous load of pumping operations. When the stub shaft wears, corrodes, or sustains impact damage, the drivetrain loses alignment — resulting in vibration, accelerated wear on adjacent components, and ultimately a loss of pumping capacity until the shaft is replaced.
DHS Equipment is an authorized Multiquip dealer. For fitment questions or help confirming this is the correct part for your machine, contact our parts team directly.
Part Details
| Part Number | EM98071 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Engine Flange Stub Shaft |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI Zenith |
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.
