The Multiquip 22512050140 Key 5 X 14 is a genuine OEM component designed for MDR-9DYE power trowels, MVH-304DSB, MVH-402DSB, and MVH-406DSY reversible plate compactors, and MRH-800DS and MRH800DS2 walk-behind rollers. As a direct factory replacement, this key ensures the correct shaft-to-hub engagement that keeps driven components locked and transmitting torque as intended. Sourced directly from Multiquip, part 22512050140 is manufactured to the same specification as the original, so it drops straight into place without any reworking of mating parts. If your current key is sheared, worn, or missing, this is the correct OEM replacement to restore your equipment to full operating condition.
Key Features
- Genuine OEM Shear Tolerance — Manufactured to Multiquip's exact dimensional specification, ensuring the key seats fully in both shaft and hub keyways without play or stress concentrations that cause premature failure.
- Direct Drop-In Replacement — Sized at 5 x 14 mm to match the original keyway dimensions, allowing straightforward installation into the existing slot with no filing or fitting required.
- Broad Cross-Family Fitment — Confirmed for MDR-9DYE, MVH-304DSB, MVH-402DSB, MVH-406DSY, MRH-800DS, and MRH800DS2, covering power trowel, heavy-duty reversible plate compactor, and walk-behind roller applications in the Multiquip lineup.
- Torque Transmission Integrity — A correctly fitted key locks the shaft and driven component together so power is transferred cleanly; a sheared or missing key causes the hub to spin freely on the shaft, making the machine inoperable.
- Fast Service Turnaround — Keyed connections are a common wear and failure point during maintenance intervals; keeping part 22512050140 on hand means a critical drive component can be back in service quickly after inspection.
A woodruff or parallel key is a small but essential drive component that fits into machined slots cut into both a shaft and the hub of a gear, pulley, or drum. It acts as a positive mechanical lock between the two parts, preventing the hub from rotating independently of the shaft and ensuring full torque is delivered to the driven component. When a key shears — typically as a result of shock loading or a jam — the hub disengages from the shaft entirely, and the machine loses drive to that assembly until the key is replaced.
Part Details
| Part Number | 22512050140 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Key 5 X 14 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Trowels | MDR-9DYE |
| Plate Compactors | MVH-304DSB |
| Plate Compactors | MVH-402DSB |
| Plate Compactors | MVH-406DSY |
| Rollers | MRH-800DS |
| Rollers | MRH800DS2 |
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.
