Multiquip 514778 Trunnion Hub

The Multiquip 514778 Trunnion Hub is a genuine OEM component designed for Whiteman plaster and mortar mixer models including the WM63E, WM63H5, WM63H8, WM63SLF, WM70PLF, WM70S/P, WM70SLF, WM90PLF, WM90S/P, and WM90SLF. As a direct Multiquip OEM part, the 514778 is manufactured to the exact tolerances required for proper drum rotation and structural alignment across the WM63, WM70, and WM90 mixer series. Sourced directly through DHS Equipment, this part ships as a verified factory replacement with no guesswork on fitment. If your Whiteman mixer is showing signs of excessive play, uneven drum movement, or worn pivot points, the 514778 Trunnion Hub is the correct service part to restore proper operation.

Key Features

• Genuine OEM Construction — Manufactured by Multiquip to exact dimensional tolerances, ensuring correct load distribution and pivot alignment specific to Whiteman mixer drum assemblies.
• Direct-Fit Replacement — Matches the original mounting configuration on WM-series mixers, dropping into the existing drum pivot location without rework or machining.
• Broad WM-Series Compatibility — Confirmed fitment across the WM63, WM70, and WM90 Whiteman plaster and mortar mixer families, covering electric, Honda, and LF-powered variants.
• Structural Integrity for Drum Support — The trunnion hub bears the rotational load of the mixing drum; a worn or cracked hub leads to drum wobble, uneven mixing, and accelerated wear on surrounding components.
• Verified Part Number — Order with confidence using Multiquip part number 514778, cross-referenced against the WM63, WM70, and WM90 model lines for accurate sourcing.

The trunnion hub is the pivot point that supports and centers the mixing drum on a mortar or plaster mixer, allowing it to rotate smoothly during operation and tilt for discharge. It carries the full weight and rotational load of the loaded drum, making it one of the highest-stress structural components in the mixer assembly. When the trunnion hub wears, cracks, or develops excessive play, the drum loses alignment, mixing consistency drops, and the surrounding frame and bearings are placed under abnormal stress — making timely replacement essential to keeping the machine productive and safe to operate.

Part Details

Compatibility & Fitment

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.