The Multiquip EM14329 Rocker Arm Shaft is a genuine OEM component designed for C30HD series concrete pumps, including the C30HD, C30HDG, C30HDZ, C30HDGA, C30HDN, C30HDNI, and C30HDNI Precision and Zenith variants. As a direct OEM replacement, EM14329 meets the original engineering specifications set for these Mayco cycloidal concrete pump models, ensuring a correct, drop-in installation without guesswork. Sourcing a genuine Multiquip part means you are getting the same component built to the same tolerances as the one that left the factory. Confirm your model code against the C30HD family before ordering to ensure fitment accuracy.
Key Features
- Genuine OEM Precision Tolerancing — Manufactured to exact dimensional specs for the rocker arm assembly, ensuring proper valve actuation geometry and consistent pump stroke timing.
- Direct Drop-In Installation — Engineered to seat directly into the rocker arm carrier on C30HD series concrete pumps with no machining or adaptation required at the shaft bore.
- Broad C30HD Series Coverage — Fits C30HD, C30HDG, C30HDZ, C30HDGA, C30HDN, C30HDNI, C30HDNI Precision, and C30HDNI Zenith concrete pump models.
- Sustained Pumping Output — A correctly functioning rocker arm shaft maintains consistent valve timing, which directly supports steady concrete flow rate and prevents mid-pour interruptions.
- Verified OEM Part Number — this part is the genuine Multiquip part number for this shaft; cross-reference against your pump's parts manual to confirm correct selection before installation.
The rocker arm shaft is the central pivot point around which the rocker arms rotate to open and close the engine's intake and exhaust valves in the correct sequence. In a concrete pump application, consistent valve timing is critical — any slop, wear, or failure at the shaft causes erratic valve movement, which degrades engine performance and ultimately compromises pumping pressure and output. A worn or damaged rocker arm shaft can lead to accelerated wear on the rocker arms themselves, valve train noise, and in severe cases, complete valve train failure requiring far more extensive repairs.
Part Details
| Part Number | EM14329 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Rocker Arm Shaft |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDG |
| Mayco Pumps | C30HDZ |
| Mayco Pumps | C30HD |
| Mayco Pumps | C30HDGA |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI |
| 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.
