The Multiquip 300518C is a genuine OEM Key 1/4" x 3/16" x 2-1/2" designed for Whiteman ride-on power trowel models HTN27K, HTN28K, and JWN24HTCSL. As a direct OEM component sourced from Multiquip, it meets the exact material and dimensional standards required for proper fit and function. This key is a small but critical drivetrain component — correct sizing ensures the mating shaft and hub assembly engage and transfer torque without slippage or play. Confirm your model number against the fitment list before ordering to make sure 300518C is the right key for your machine.
Key Features
- Genuine OEM Dimensions — Cut to exact 1/4" x 3/16" x 2-1/2" specifications, ensuring the key seats fully in both the keyway slot on the shaft and the mating hub without shimming or modification.
- Direct Shaft-to-Hub Engagement — Drops into the existing keyway on compatible trowel drivetrain assemblies, restoring positive torque transfer between the shaft and driven component.
- Verified Fitment for HTN and JWN Series — Confirmed for Whiteman ride-on power trowel models HTN27K, HTN28K, and JWN24HTCSL.
- Prevents Slippage and Drivetrain Wear — A worn or missing key allows the hub to spin independently on the shaft, causing accelerated wear to both components and loss of blade or drive control.
- Genuine Multiquip OEM Part — Sourced directly from Multiquip, this key carries the same material grade and tolerancing as the original component installed at the factory.
A shaft key is a small rectangular or square piece of hardened metal that locks a rotating component — such as a sprocket, gear, or hub — to a drive shaft. It fits into a machined slot called a keyway, which is cut into both the shaft and the bore of the mating part. When the key is in place, it prevents the hub from rotating independently on the shaft, ensuring that rotational force is transferred cleanly from the shaft to the driven component. When a key shears, deforms, or goes missing, the driven component loses its connection to the shaft, resulting in loss of power transmission, erratic machine behavior, and rapid wear to the shaft and hub keyways themselves.
Part Details
| Part Number | 300518C |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Key 1/4" x 3/16" x 2-1/2" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTN27K |
| Whiteman Ride-On Power Trowels | HTN28K |
| Whiteman Ride-On Power Trowels | JWN24HTCSL/HSCSL |
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.
