The Multiquip 11057H5000 Cylinder Head Bolt is a genuine OEM replacement designed for C30HDNI and C30HDN series Mayco concrete pumps, including C30HDNI Precision and C30HDNI Zenith variants. As a factory-sourced component, this bolt is manufactured to the exact specifications required to properly secure the cylinder head on these machines. Sourced directly through Multiquip's OEM supply chain, the 11057H5000 ensures you are installing the correct hardware — not a generic substitute. Confirm your model code against the fitment list before ordering to ensure a direct application match.
Key Features
- Genuine OEM Hardware Integrity — Manufactured to exact torque and tensile specifications required for cylinder head sealing on Mayco concrete pump engines, preventing fastener failure under sustained operating pressure.
- Direct-Application Fit — Threads, shank diameter, and head profile match the original cylinder head mounting points, installing the same way as the factory bolt with no reworking of hardware positions.
- Confirmed Fitment — Compatible with C30HDNI, C30HDN, C30HDNI Precision, and C30HDNI Zenith concrete pump models.
- Maintains Cylinder Head Clamping Force — A correctly torqued cylinder head bolt holds head gasket compression steady, supporting consistent combustion sealing and preventing coolant or combustion gas leaks that degrade pump engine performance.
- Critical Fastener Replacement — Cylinder head bolts are a safety-relevant fastener in any engine application; using the correct OEM-spec bolt ensures proper clamping load and reduces the risk of head gasket failure or head warping under heat cycling.
A cylinder head bolt is a critical engine fastener that clamps the cylinder head to the engine block, compressing the head gasket to form a seal between the combustion chamber, coolant passages, and oil galleries. Without the correct clamping force — delivered by bolts torqued to the proper specification — the head gasket cannot maintain a reliable seal, which can lead to coolant loss, oil contamination, or compression leakage. On a concrete pump engine that operates under sustained load, a stretched, damaged, or incorrect cylinder head bolt is a common root cause of head gasket failure and unplanned engine downtime.
Part Details
| Part Number | 11057H5000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Cylinder Head 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.
