The Multiquip EM968302 is a genuine OEM Castle Nut 3/4" designed for Essick and Whiteman concrete and mortar mixer models including the EM12M Series, EM120SM, EM120S Series, EM120P Series, WM120SH, and WM120PH. As a factory-sourced component, it meets the exact dimensional and material specifications set for these mixer lines, ensuring a correct, secure fit every time. Sourced directly through Multiquip's OEM supply chain, this is the same castle nut installed at the factory — not an approximation. Confirm your model code against the fitment list before ordering to ensure compatibility with your specific unit.
Key Features
- Hardened Fastener Grade — Manufactured to the exact material hardness specification required for mixer drivetrain and structural fastening applications, maintaining proper clamping force under load and vibration.
- Cotter Pin Retention Design — The castle profile accepts a standard cotter pin to lock the nut in position, preventing loosening during continuous mixer drum rotation and engine-driven operation.
- Broad Mixer Compatibility — Fits Essick EM12M Series, EM120SM, EM120S Series, EM120P Series, and Whiteman WM120SH and WM120PH mixer models in a single part number.
- Genuine OEM Sourcing — Supplied directly through Multiquip's OEM parts program, ensuring dimensional accuracy across thread pitch, across-flat width, and slot depth critical to correct installation.
- Drivetrain Retention Integrity — A worn or missing castle nut can allow shaft or axle components to migrate out of position, leading to accelerated wear or mechanical failure during mixing cycles.
A castle nut — named for its slotted crown resembling battlements — is a specialized hex nut engineered to work in conjunction with a cotter pin or safety wire passed through the slots and a drilled shaft or bolt. This locking mechanism prevents the nut from backing off under the vibration and rotational load common in mixer drum assemblies. Without a properly secured castle nut, rotating components such as drum axles or drive shafts can shift, causing misalignment, accelerated bearing wear, or sudden mechanical separation. Replacing a damaged or missing castle nut promptly is essential to keeping the mixer drum assembly properly retained and operating safely.
Part Details
| Part Number | EM968302 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Castle Nut 3/4" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Essick Mixers | EM12M Series |
| Essick Mixers | EM120SM |
| Whiteman Mixers | WM120SH |
| Whiteman Mixers | WM120PH |
| Essick Mixers | EM120S Series |
| Essick Mixers | EM120P Series |
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.
