The Multiquip 7406 Engine Assembly 12.5 Vanguard Hydraulic is a genuine OEM engine assembly designed for the WM120 Whiteman plaster and mortar mixer. This is the complete engine unit — sourced directly from Multiquip to match the original configuration of the WM120 hydraulic drive system. As a genuine OEM component, the part is built to the same specification as the engine that powered your mixer from day one, ensuring full mechanical and hydraulic compatibility. Confirm your model code is WM120 before ordering to ensure an accurate match.
Key Features
- Genuine OEM Power Source — the part is a factory-authentic Briggs & Stratton Vanguard engine assembly, delivering the correct displacement, output, and torque curve the WM120 hydraulic system was engineered around.
- Complete Engine Assembly — Supplied as a full assembly, not a short block or bare engine, so the unit is ready to mount and connect to the WM120 hydraulic drive without sourcing additional sub-components.
- Direct WM120 Fitment — Engineered specifically for the Whiteman WM120 plaster and mortar mixer; model code WM120 confirms compatibility with this hydraulic-drive configuration.
- Correct Hydraulic Drive Pairing — The 12.5 HP Vanguard output rating is matched to the hydraulic pump load on the WM120 — an underpowered or mismatched engine will starve the hydraulic circuit and reduce drum torque under load.
- Fuel System Integrity — As a complete OEM assembly, all fuel, ignition, and exhaust components are included and pre-configured, eliminating the compatibility guesswork that comes with sourcing individual engine parts separately.
The engine assembly is the primary power source for the WM120 hydraulic mortar mixer, driving the hydraulic pump that in turn rotates the mixing drum. Unlike mechanically driven mixers, the WM120 relies on hydraulic pressure generated by this engine to deliver consistent drum speed and torque through varying load conditions — critical when mixing dense plaster or mortar batches. When the engine loses power, runs roughly, or fails to start, the entire mixing function is compromised; replacing the engine assembly as a complete unit restores full hydraulic output and gets the mixer back to full production capacity.
For fitment questions or to verify this part is correct for your WM120 serial number, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 7406 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Engine Assembly 12.5 Vanguard Hydraulic |
Compatibility & Fitment
| Name | Model |
|---|---|
| WM120 | WM120 |
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.
