The Multiquip EM14317 is a genuine OEM 3/8" Key designed for Mayco concrete pump models C30HDZ, C30HD, and C30HDGA. As an authentic Multiquip replacement part, the part is manufactured to the same specifications as the original component, ensuring correct fit and function within the drivetrain assembly. This key is a direct drop-in replacement, confirmed for compatibility across the C30HD series concrete pumps sold under the Mayco brand within the Multiquip portfolio.
Key Features
- Genuine OEM Construction — Manufactured to exact original tolerances, ensuring the key seats and locks correctly within the keyway without play or slippage.
- Direct Drop-In Replacement — Matches the original 3/8" profile for straightforward installation into the shaft and hub assembly without machining or modification.
- Confirmed C30HD Series Fitment — Verified compatible with C30HDZ, C30HD, and C30HDGA Mayco concrete pump models.
- Drivetrain Integrity — A properly seated key prevents shaft-to-hub slippage, maintaining power transfer efficiency and protecting surrounding drivetrain components from accelerated wear.
- Torque Transmission Safety — A worn or sheared key allows components to spin freely on the shaft, creating a loss-of-drive condition that can damage the pump and pose an operational hazard — making timely replacement critical.
A 3/8" key is a small but essential drivetrain component used to lock rotating parts — such as pulleys, sprockets, or impellers — to a shaft, ensuring they turn together as a single unit. The key fits into a machined slot called a keyway cut into both the shaft and the mating hub, preventing any rotational slippage between the two. When a key shears, deforms, or wears down, the connected component can spin independently of the shaft, causing an immediate loss of drive function and potentially damaging the shaft, hub, or surrounding assembly.
Part Details
| Part Number | EM14317 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Key 3/8" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDZ |
| Mayco Pumps | C30HD |
| Mayco Pumps | C30HDGA |
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.
