The Multiquip 12109 Connecting Rod Bolt is a genuine OEM Connecting Rod Bolt designed for C30HDNI, C30HDN, C30HDNI Precision, and C30HDNI Zenith Mayco concrete pumps. As a direct OEM replacement, this bolt meets the original engineering specifications for the connecting rod assembly in these machines. Sourced directly through authorized Multiquip supply channels, the 12109 ensures you are installing the exact component the pump was built around. DHS Equipment stocks this part to keep your concrete pump running without unnecessary delays.
Key Features
- OEM-Spec Tensile Strength — Manufactured to the original torque and load specifications required for the connecting rod assembly, ensuring the fastener holds under the cyclic pressures of concrete pumping.
- Direct Drop-In Replacement — Matches the thread pitch, diameter, and head geometry of the original bolt, allowing straightforward installation into the existing connecting rod without reworking or adapting the assembly.
- Confirmed Fitment — Verified for C30HDNI, C30HDN, C30HDNI Precision, and C30HDNI Zenith Mayco concrete pump models.
- Sustained Pumping Consistency — A correctly torqued connecting rod bolt keeps the piston stroke precise and repeatable; a failed or stretched bolt leads to knocking, loss of output pressure, and accelerated internal wear.
- Critical Structural Fastener — Connecting rod bolts are load-bearing components under high cyclic stress; using the correct OEM-spec part is essential to maintaining the structural integrity of the pump drive assembly.
The connecting rod bolt is a critical fastener that secures the connecting rod cap to the rod itself, clamping the bearing around the crankshaft journal. In a concrete pump, this joint transmits the full force of each piston stroke, meaning the bolt is under significant tensile and fatigue loading with every cycle. When a connecting rod bolt stretches, loosens, or fails, the result is severe internal damage — including bearing failure, crankshaft damage, and in worst cases, catastrophic rod failure — making correct specification and timely replacement essential to pump longevity.
Part Details
| Part Number | 12109 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Connecting Rod Bolt |
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.
