The Multiquip 501016 Key 3/8" x 88 MM is a genuine OEM replacement designed for Essick and Whiteman plaster and mortar mixers, including the EM90P/S, EM70P/S, WM90S/P, WM70S/P, EM70SLF, EM90SLF, WM70SLF, WM70PLF, WM90SLF, and WM90PLF series. Sourced directly from Multiquip, this key is machined to the exact dimensions required for proper shaft-to-component engagement across the full range of compatible mixer models. As a genuine OEM part, it meets the same specifications as the component installed at the factory, ensuring correct fit and function without modification. DHS Equipment stocks this part to keep your Essick and Whiteman mixer running without extended downtime.
Key Features
- Exact OEM Dimensions — Machined to the precise 3/8" x 88 MM specification for accurate shaft-to-hub engagement with no slop or misalignment.
- Genuine Multiquip Part — Sourced directly from Multiquip, this key meets the same material and dimensional standards as the original component.
- Broad Mixer Compatibility — Confirmed fitment across Essick (EM70, EM90) and Whiteman (WM70, WM90) plaster and mortar mixer families in both steel and poly drum configurations.
- Torque Transmission Integrity — A correctly sized key maintains positive drive between shaft and mounted component; an undersized or worn key causes slippage, vibration, and accelerated wear to both mating surfaces.
- Direct Drop-In Replacement — Slots into the existing keyway without recutting or reshaping, making installation straightforward during routine maintenance or drum drive service.
A shaft key is a small but critical drive component that locks a rotating element — such as a pulley, sprocket, or drum drive hub — to its shaft, ensuring both parts turn together as a single unit. Without a properly fitted key, torque cannot transfer reliably from the shaft to the driven component, leading to slippage, uneven mixing performance, or complete loss of drive. A worn, sheared, or undersized key will cause audible knocking, irregular drum rotation, and rapid deterioration of the keyway itself, making timely replacement essential to protecting the broader drivetrain.
Part Details
| Part Number | 501016 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Key 3/8" x 88 MM |
Compatibility & Fitment
| Name | Model |
|---|---|
| Essick Mixers | EM90P/S |
| Essick Mixers | EM70P/S |
| Whiteman Mixers | WM90S/P |
| Whiteman Mixers | WM70S/P |
| Essick Mixers | EM70SLF |
| Essick Mixers | EM90SLF |
| Whiteman Mixers | WM70SLF |
| Whiteman Mixers | WM70PLF |
| Whiteman Mixers | WM90SLF |
| Whiteman Mixers | WM90PLF |
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.
