The Multiquip 512210 Castle Nut is a genuine OEM fastener designed for Whiteman hydraulic power buggy models including the WBH-16, WBH-16E, WBH-16F, WBH-16EF, WBH21EPA, WBH-21EF, and WBH-21EFP. As a direct Multiquip OEM part, the 512210 is manufactured to the same specifications as the original hardware installed at the factory, ensuring a proper fit in its designated assembly. Sourcing the correct castle nut matters on power buggies where fastener integrity directly affects drivetrain and axle security. DHS Equipment stocks this part to keep your WBH-series buggy running at full capacity.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Multiquip's original thread pitch and dimensional spec, so the cotter pin slots align correctly every time for a secure, locked installation.
- Direct Bolt-On Replacement — Installs in place of the original castle nut without rework or modification to the surrounding assembly or mating components.
- Broad WBH-Series Fitment — Confirmed for WBH-16, WBH-16E, WBH-16F, WBH-16EF, WBH21EPA, WBH-21EF, and WBH-21EFP Whiteman hydraulic power buggies.
- Fastener Retention Security — The castle nut's slotted crown accepts a cotter pin to mechanically lock the nut in position, preventing loosening under the vibration and load cycles common to power buggy operation.
- Safety-Critical Application — On axle and wheel-end assemblies, a properly torqued and pinned castle nut is essential to prevent wheel separation or loss of steering control during operation.
A castle nut — named for the crown-shaped slots machined into its top — is a specialized hex nut designed to be secured with a cotter pin passed through the slots and a corresponding hole in the bolt or shaft. This locking arrangement prevents the nut from rotating loose under vibration, shock loads, or cyclical stress, making it the standard fastener choice for wheel bearings, axle ends, and other rotating assemblies where unintended loosening would be a safety concern. When a castle nut becomes worn, stripped, or corroded, the cotter pin slot can deform and fail to retain the pin, compromising the entire locking system and creating a risk of fastener loss at the worst possible moment.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 512210 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Castle Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Buggies | WBH21EPA |
| Power Buggies | WBH-16 |
| Power Buggies | WBH-16E |
| Power Buggies | WBH-16F |
| Power Buggies | WBH-16EF |
| Power Buggies | WBH-21EFP |
| Power Buggies | WBH-21EF |
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.
