The Multiquip EM963180 is a genuine OEM Hex Bolt 3/4-10X5 designed for the C30HD series cycloidal-drive concrete pumps, including the C30HD, C30HDGA, C30HDZ, C30HDG, C30HDN, C30HDNI, and C30HDNI Precision and Zenith variants. As a factory-sourced fastener, it meets the exact thread specification, grade, and dimensional tolerance required by the original equipment design. Sourced directly from Multiquip, this bolt ships as a direct replacement and installs without modification to the surrounding hardware or structure.
Key Features
- OEM-Grade Fastener Specification — Manufactured to the precise 3/4-10 thread pitch and 5-inch length called out in the original Multiquip engineering drawings, ensuring correct clamping load and torque capacity.
- Direct Structural Replacement — Drops into the same bolt pattern and mounting positions as the factory-installed hardware, maintaining alignment across pump assemblies and structural joints.
- Broad C30HD Series Fitment — Confirmed for C30HD, C30HDGA, C30HDZ, C30HDG, C30HDN, C30HDNI, C30HDNI Precision, and C30HDNI Zenith concrete pump models.
- Structural Integrity Under Load — A correctly sized and properly torqued bolt maintains joint preload during the high-vibration, high-pressure operating cycles typical of concrete pumping — an undersized or incorrect fastener can lead to joint loosening and pump misalignment.
- Critical Fastener Safety Compliance — On concrete pumps, structural fasteners are load-bearing components subject to significant cyclic stress; using the correct OEM-spec bolt is essential to safe pump operation and structural reliability.
A hex bolt is a threaded fastener used to clamp structural components together, maintaining joint integrity under mechanical load and vibration. On cycloidal concrete pumps like the C30HD series, these bolts secure heavy-duty assemblies that experience continuous stress during pumping cycles — correct thread engagement and bolt grade are critical to keeping joints tight and the pump operating safely. When a bolt stretches, strips, or is replaced with an incorrect spec, joint preload drops, components shift, and accelerated wear or structural failure can follow.
Part Details
| Part Number | EM963180 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Bolt 3/4-10X5 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HD |
| Mayco Pumps | C30HDGA |
| Mayco Pumps | C30HDZ |
| Mayco Pumps | C30HDG |
| Mayco Pumps | C30HDNI Zenith |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDNI |
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.
