The Multiquip 12112 Hex Connecting Rod Nut is a genuine OEM component designed for C30HDNI and C30HDN series Mayco concrete pumps, including the C30HDNI Precision and C30HDNI Zenith variants. As a direct OEM replacement, this nut meets the original engineering specifications used in production, ensuring a correct, dependable installation without any guesswork. Sourced directly through Multiquip's authorized parts network, the 12112 is the right call when you need to restore your pump to full working order with confidence.
Key Features
- Genuine OEM Fastener Integrity — Manufactured to the exact torque and thread specification required at the connecting rod, preventing loosening under the high-cycle loading of a concrete pump stroke.
- Direct Drop-In Installation — Threads directly onto the connecting rod assembly of compatible Mayco pump models with no rework or re-tapping needed.
- Broad Mayco Pump Compatibility — Fits C30HDN, C30HDNI, C30HDNI Precision, and C30HDNI Zenith concrete pump models.
- Critical Drivetrain Retention — Secures the connecting rod under continuous reciprocating load; a worn or missing nut can lead to rod movement, misalignment, and pump failure mid-pour.
- Verified OEM Part Number — Part number 12112 cross-references directly to Multiquip's published parts documentation for these Mayco pump families, so you can order with confidence.
The hex connecting rod nut is a fastener that locks the connecting rod in place within the pump's drive mechanism. In a concrete pump, the connecting rod converts rotational engine power into the linear piston movement that pushes concrete through the delivery line. This nut bears significant cyclical stress with every pump stroke, and if it loosens or fails, the connecting rod can shift out of position — causing immediate mechanical damage and bringing the pour to a halt.
Need help confirming fitment or locating additional parts for your Mayco concrete pump? Contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 12112 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Connecting Rod Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI Precision |
| 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.
