The Multiquip EM509077 Drum and Shaft Assembly Complete Poly is a genuine OEM component designed for WM-900S and WM-900P Whiteman plaster and mortar mixers. As a direct OEM replacement, this assembly is built to the same specifications as the original, ensuring a consistent, accurate fit within the mixer's drum system. DHS Equipment sources this part directly through authorized channels, so you can order with confidence knowing you're getting the correct component for your machine. Confirm your model code — WM-900S or WM-900P — before ordering to ensure compatibility.
Key Features
- Complete Polyurethane Drum Assembly: — Includes both the drum and shaft as a matched assembly, eliminating the guesswork of sourcing individual components separately.
- Genuine OEM Construction: — Manufactured to Multiquip's original material and dimensional standards, so the polyurethane drum maintains the same mixing action and wear resistance as the factory-installed unit.
- Direct Fitment for WM-900S and WM-900P: — Engineered specifically for Whiteman 900-series plaster and mortar mixers; installs using the same mounting points and shaft interface as the original assembly.
- Polyurethane Drum Material: — The poly drum resists adhesion from mortar, plaster, and stucco mixes, making cleanout faster and extending the service life of the drum over repeated use cycles.
- Restored Mixing Performance: — A worn or damaged drum and shaft assembly can cause uneven mixing, excessive vibration, or material buildup; replacing with this part restores consistent batch output and smooth drum rotation.
The drum and shaft assembly is the core working component of a plaster and mortar mixer — it holds and rotates the mix charge, transferring drive force from the engine through the shaft to tumble materials evenly. The polyurethane drum is chosen for its resistance to the abrasive, sticky nature of cementitious and gypsum-based mixes, and it takes on the full mechanical and material stress of every batch. When the drum cracks, deforms, or the shaft wears at its mounting points, mixing efficiency drops and the entire drive system can be placed under additional strain, making timely replacement critical to keeping the mixer running cleanly.
For fitment questions or to confirm this part is correct for your specific WM-900S or WM-900P mixer, contact the DHS Equipment parts team directly.
Part Details
| Part Number | EM509077 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Drum and Shaft Assembly Complete Poly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mixers | WM-900S |
| Mixers | WM-900P |
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.
