The Multiquip 507719 Drum Head Bearing Boss is a genuine OEM component designed for Whiteman and Essick mixer models including WM120SH, WM120PH, EM120S Series, EM120P Series, WM-700S, WM-700P, WM-900S, and WM-900P. Sourced directly from Multiquip, this part meets the original engineering specifications for these mixer families, ensuring it seats and functions exactly as the factory-installed unit. If your drum is showing signs of wobble, bearing wear, or irregular rotation, replacing the 507719 Drum Head Bearing Boss restores proper drum alignment and smooth operation. DHS Equipment stocks this part to help you get your mixer back in service without guesswork.
Key Features
- OEM-Grade Bearing Interface — Machined to the original tolerance spec for the bearing bore, ensuring the bearing seats correctly and carries the drum load without premature wear.
- Direct-Fit Installation — Matches the original mounting profile on the drum head, dropping into place on WM120SH, WM120PH, EM120S, and EM120P Series drums without rework or modification to surrounding components.
- Broad Mixer Compatibility — Confirmed fit across Whiteman WM120, WM-700, and WM-900 series and Essick EM120 series plaster and mortar mixers.
- Restores Smooth Drum Rotation — A worn or cracked bearing boss causes drum wobble, uneven mixing, and accelerated bearing failure. Replacing it with a correctly spec'd OEM part brings drum rotation back to its original smooth, centered operation.
- Genuine Multiquip Part — Carrying part number 507719, this is an authentic OEM component backed by Multiquip's supply chain — not a generic substitute.
The drum head bearing boss is the structural interface between the mixer drum and its rotating bearing assembly. It houses and supports the bearing that allows the drum to spin freely around the mixer's drive system, and it takes on constant radial and axial load every time the machine is running. When the bearing boss cracks, wears out of round, or corrodes, the bearing can no longer sit true — leading to drum wobble, increased vibration, noise, and eventually bearing seizure or drum damage. Replacing a failed 507719 Drum Head Bearing Boss promptly protects the bearing, the drum, and the surrounding drivetrain components from cascading wear.
For fitment questions or help confirming compatibility with your specific mixer model, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 507719 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Drum Head Bearing Boss |
Compatibility & Fitment
| Name | Models |
|---|---|
| Essick Mixers | EM120P Series, EM120S Series |
| Mixers | EM120P, EM120S, WM-700P, WM-700S, WM-900P, WM-900S, WM120PH, WM120SH |
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.
