The Multiquip 500214 is a genuine OEM Square Key 1/4" x 30mm designed for a wide range of Multiquip, Whiteman, and Essick equipment including WBH, WM, AR, MC, and EM series machines. As a direct OEM replacement, this key is manufactured to the exact dimensions required for correct shaft-to-hub engagement — ensuring proper torque transfer without slop or misalignment. Verified fitment covers power buggies, mortar and concrete mixers, and ride-on asphalt rollers across multiple model families. Keep a genuine Multiquip 500214 on hand for planned maintenance or emergency repairs on any compatible machine.
Key Features
- Exact OEM Dimensions — Manufactured to the precise 1/4" x 30mm specification required for correct shaft keyway engagement across all compatible models.
- Direct Drop-In Fit — Matches the original keyway geometry on both shaft and hub, allowing straightforward installation without filing or shimming.
- Broad Cross-Family Fitment — Confirmed compatibility across WBH power buggies, WM and EM mortar/concrete mixers, MC concrete mixers, and AR ride-on rollers including AR13H, AR13HA/HAR, and AR13HC models.
- Positive Torque Transmission — A correctly sized square key locks rotating components to the drive shaft, preventing slippage that would otherwise cause loss of power delivery and accelerated keyway wear.
- Genuine Multiquip OEM Part — Sourced directly from Multiquip, this component meets the same material and hardness standards as the key installed at the factory, supporting long service life under continuous load.
A square key is a small but critical drivetrain component that sits in matching keyways cut into both a shaft and a mating hub — such as a sprocket, pulley, or drum. It locks these two parts together rotationally so that torque from the engine or motor is transmitted without slippage. When a key shears, becomes deformed, or works loose, the driven component will spin freely on the shaft, causing an immediate loss of function in whatever system it drives. Replacing a worn or damaged key promptly with a correctly dimensioned part prevents secondary damage to the keyways themselves, which are far more costly to repair.
Part Details
| Part Number | 500214 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Square Key 1/4" x 30mm |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Buggies | WBH-16EAWDF |
| Power Buggies | WBH-16EAWD |
| Whiteman Mixers | WM45HCE |
| MQ Mixers | MC94P/S |
| Rollers | AR13HA/HAR |
| Rollers | AR13H |
| MQ Mixers | MC64SK/MC64PK |
| MQ Mixers | MC64P/S |
| Whiteman Mixers | WM90S/P |
| Whiteman Mixers | WM90PLF |
| Whiteman Mixers | WM90SLF |
| Whiteman Mixers | WM70PLF |
| Whiteman Mixers | WM70SLF |
| Essick Mixers | EM90SLF |
| Essick Mixers | EM70SLF |
| Whiteman Mixers | WM70S/P |
| Whiteman Mixers | WM63H8 |
| Whiteman Mixers | WM63H5 |
| Whiteman Mixers | WM63E |
| Whiteman Mixers | WM63SLF |
| MQ Mixers | MC94SK/MC94PK |
| MQ Mixers | MC44S |
| Essick Mixers | EM70P/S |
| Essick Mixers | EM90P/S |
| Rollers | AR13HC |
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.
