The Multiquip 11056H1000 Cylinder Head Bolt is a genuine OEM replacement designed for Mayco concrete pump models C30HDNI and C30HDN, including C30HDNI Precision and C30HDNI Zenith variants. As a factory-sourced component, this bolt is manufactured to the exact specifications required by the C30HDN series, ensuring correct torque retention and a secure head seal. Sourced directly through authorized Multiquip distribution channels, the 11056H1000 is the correct service part for any cylinder head work on these pumps. DHS Equipment stocks genuine Multiquip OEM parts to help you get the right component the first time.
Key Features
- Genuine OEM Specification: — Manufactured to the exact thread pitch, grade, and dimensional spec required for proper cylinder head clamping force on C30HDN series concrete pumps.
- Direct Service Replacement: — Installs into the existing cylinder head bore without rework, matching the original bolt pattern and engagement depth of the factory assembly.
- Broad C30HDN Series Compatibility: — Fits C30HDNI, C30HDN, C30HDNI Precision, and C30HDNI Zenith Mayco concrete pump models.
- Critical Sealing Integrity: — A properly torqued cylinder head bolt maintains the compression seal between the head gasket and block; a worn or stretched bolt risks head gasket failure, pressure loss, and pump downtime.
- Pressure System Safety: — On a high-pressure concrete pump, correct cylinder head fastener integrity is essential to safe operation — using the correct OEM-grade bolt helps prevent catastrophic head seal failures under load.
The cylinder head bolt is a critical fastener that clamps the cylinder head firmly against the engine block, compressing the head gasket to form an airtight and pressure-tight seal. In a concrete pump application, where the engine is subject to sustained heavy loads, these bolts must maintain consistent clamping force across the full service life of the head gasket. When a cylinder head bolt stretches, corrodes, or fails to hold torque, the result is a compromised head gasket seal — leading to compression loss, coolant intrusion, or overheating that can cause serious engine damage.
Part Details
| Part Number | 11056H1000 |
|---|---|
| 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.
