The Multiquip EM618 is a genuine OEM Special Washer 3/4 designed for C30HD series Mayco concrete pumps. As a factory-sourced component, EM618 is manufactured to the exact dimensions and material grade specified for these machines, ensuring correct load distribution and clamping performance wherever it is installed. This washer is confirmed to fit the C30HD, C30HDNI, C30HDNI Precision, C30HDN, C30HDNI Zenith, C30HDG, C30HDZ, and C30HDGA models, making it the right choice when servicing any unit in the C30HD family.
Key Features
- Genuine OEM Material Grade — Produced to the original hardness and dimensional tolerances required for secure fastening in concrete pump applications, where vibration and pressure place constant stress on hardware.
- Direct-Fit Replacement — Engineered to the exact 3/4 specification, this washer seats correctly against mating fasteners and surfaces without shimming or adjustment.
- Broad C30HD Family Coverage — Confirmed fitment across C30HD, C30HDNI, C30HDN, C30HDG, C30HDZ, C30HDGA, and C30HDNI variant models.
- Consistent Clamping Performance — Proper load distribution from a correctly spec'd washer prevents fastener loosening, surface galling, and hardware failure under sustained pump operation.
- Genuine Multiquip Part — Sourced directly through authorized Multiquip supply channels, so you receive the same component installed at the factory.
A special washer serves a critical role in fastener assemblies by distributing the clamping load of a bolt or nut across a wider surface area, preventing the fastener from pulling through or damaging the material beneath it. In a concrete pump environment, where vibration, hydraulic forces, and heavy cyclic loads are constant, using the correct washer specification is essential to keeping bolted connections secure and preventing premature wear on surrounding components. Installing an undersized or incorrect washer in these applications can lead to fastener migration, surface damage, and eventual assembly failure.
For fitment questions or order support, contact the DHS Equipment team directly.
Part Details
| Part Number | EM618 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Special Washer 3/4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HD |
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI Zenith |
| Mayco Pumps | C30HDG |
| Mayco Pumps | C30HDZ |
| Mayco Pumps | C30HDGA |
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.
