The Multiquip EM20612 Stud is a genuine OEM fastener designed for Mayco concrete pump models including C30HD, C30HDNI, C30HDNI Precision, C30HDNI Zenith, C30HDN, C30HDG, C30HDZ, and C30HDGA. As a factory-sourced component, it meets the original design tolerances required to maintain a secure, leak-free assembly on these cycloidal-drive concrete pumps. DHS Equipment stocks this OEM stud to help you restore your pump to full working condition with confidence in fitment accuracy.
Key Features
- Genuine OEM Fastener Grade: — Manufactured to the exact thread pitch, length, and material specification Multiquip specifies for Mayco C30 series concrete pumps — not a generic hardware substitute.
- Direct-Fit Replacement: — Drops into the same mounting position as the original stud, threading directly into existing bores without rework or re-tapping under normal service conditions.
- Broad C30 Series Coverage: — Confirmed fitment across C30HD, C30HDNI, C30HDNI Precision, C30HDNI Zenith, C30HDN, C30HDG, C30HDZ, and C30HDGA Mayco concrete pump models.
- Structural Integrity Under Pressure: — Concrete pumps operate under continuous hydraulic and mechanical load; a correctly rated stud maintains joint clamping force and prevents housing movement or fluid escape at critical connection points.
- Safety-Critical Fastener: — On pressurized pumping equipment, stud failure can lead to sudden joint separation. Using the correct OEM-spec stud is essential for safe, controlled pump operation on the jobsite.
A stud is a headless threaded fastener used to create a fixed anchor point in a housing or structural component, allowing mating parts to be drawn and held tightly together with nuts. On concrete pumps like the Mayco C30 series, studs are used at high-stress joint locations — such as cylinder heads, pump housings, and valve assemblies — where repeated pressurization and vibration put constant demand on fastener integrity. When a stud stretches, corrodes, or shears, the clamped joint loses its seal or structural connection, which can result in material leaks, component movement, or pump failure mid-pour.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | EM20612 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Stud |
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.
