The Multiquip 51628 is a genuine OEM Coupling Assembly designed for Essick and Whiteman concrete and mortar mixer models including the EM120P Series, EM120S Series, WM120PH, WM120SH, PRO12, PRO12E51, PRO12E53, EM120, and PRO20. As a direct OEM replacement, this coupling assembly is manufactured to the same specifications as the original component, ensuring a correct installation without adaptation. DHS Equipment stocks this part to help you get your mixer back up and running with full confidence in fitment accuracy.
Key Features
- Genuine OEM Construction — Manufactured to the original design spec for this coupling application, delivering the same torque transfer characteristics and dimensional tolerances as the factory-installed component.
- Direct-Fit Replacement — Engineered to connect and align exactly as the original, with matching bolt patterns and shaft interface geometry for straightforward installation.
- Broad Mixer Compatibility — Confirmed fitment across Essick and Whiteman mixer families including EM120 Series, PRO12, PRO20, WM120PH, and WM120SH models.
- Drivetrain Integrity — A properly functioning coupling assembly transmits power cleanly from the engine or motor to the drum drive, keeping drum rotation smooth and consistent under load.
- Failure Prevention — A worn or cracked coupling causes vibration, slipping, and eventual drum drive failure — replacing it promptly protects the surrounding drivetrain components from secondary damage.
The coupling assembly serves as the mechanical link between the power source and the rotating drum on concrete and mortar mixers. It transmits rotational force while accommodating minor shaft misalignment, absorbing shock loads that occur during mixing operations. When a coupling assembly wears, cracks, or fails, the drum may lose drive entirely or develop erratic rotation — both of which interrupt the mixing process and can place additional stress on the motor or gearbox.
For questions about fitment or to confirm this part is correct for your specific machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 51628 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Coupling Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Essick Mixers | EM120P Series |
| Essick Mixers | EM120S Series |
| Whiteman Mixers | WM120PH |
| Whiteman Mixers | WM120SH |
| Essick Mixers | PRO12 |
| Essick Mixers | PRO12E51 |
| Essick Mixers | PRO12E53 |
| Essick Mixers | EM120 |
| Essick Mixers | PRO20 |
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.
