The Wacker Neuson Gearbox Pulley is a genuine OEM component designed for the CT24-4A walk-behind concrete power trowel series, including the CT24-4A and CT24-4A EU (610mm/24-inch) models. Sourced directly from Wacker Neuson, this pulley meets the exact dimensional and material standards used in original production. It is a direct-fit replacement for the gearbox drive system on these CT-series trowels, ensuring the drivetrain operates exactly as engineered. If your existing pulley shows signs of wear, cracking, or belt slippage, the restores full drive performance quickly and correctly.
Key Features
- Genuine OEM Drive Geometry — Manufactured to the exact groove profile and bore dimensions specified for the CT24-4A gearbox, ensuring proper belt seating and tension from the first use.
- Direct Gearbox Replacement — Mounts directly to the gearbox shaft on CT24-4A trowels with no reworking of surrounding components required.
- CT24-4A Series Fitment — Confirmed compatible with the CT24-4A and CT24-4A EU (610mm/24-inch) walk-behind concrete power trowel models.
- Restores Full Blade Speed and Consistency — A worn or damaged pulley causes belt slip and uneven blade rotation; replacing it with the correct OEM part brings blade speed back to spec for a smooth, consistent trowel finish.
- Verified Part Number — Part number 5100050321 cross-references directly against Wacker Neuson's CT24-4A parts documentation, so you can order with confidence.
The gearbox pulley is a core element of the power transfer system on a walk-behind concrete trowel. It works in conjunction with the drive belt to transmit engine power to the gearbox, which in turn drives the trowel blades at the correct rotational speed. When the pulley wears, develops cracks, or loses its groove profile, belt tension becomes inconsistent and blade speed drops — leading to an uneven finish on the concrete surface. Replacing a damaged pulley promptly keeps the trowel running at the blade speed and torque the machine was designed to deliver.
Part Details
| Part Number | 5100050321 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gearbox Pulley |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CT24-4A Trowel | CT24-4A | 5000620105 |
| 610mm/24 inch Walk-behind Trow el | CT24-4A EU | 5000620849 |
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.
