The Wacker Neuson Gearbox is a genuine OEM component designed for the CT48 and CT36 series walk-behind concrete power trowels, including CT48AGP, CT48ADP, CT48AGT, CT48ADT, CT48BDT, CT48AVP, CT48AVT, CT36AVP, and CT36AVT models. Sourced directly from Wacker Neuson, this gearbox meets the exact engineering specifications of your original unit — no guesswork on fitment or compatibility. It is the same part installed at the factory, giving you full confidence in both performance and longevity. Whether you're running standard, CE-compliant, or variable-speed trowel configurations, part number covers a broad range of CT-series variants across both 48-inch and 36-inch platforms.
Key Features
- Genuine OEM Gear Tolerances — Manufactured to Wacker Neuson's original gear mesh and torque transfer specifications, ensuring smooth power delivery from engine to spider assembly without slippage or premature wear.
- Direct Drop-In Replacement — Matches the original mounting interface and output shaft configuration of the CT48 and CT36 series, allowing straightforward installation without modification to the trowel frame or drive components.
- Broad CT-Series Fitment — Compatible with CT48AGP, CT48ADP, CT48AGT, CT48ADT, CT48BDT, CT48AVP, CT48AVT, CT36AVP, and CT36AVT models across standard, CE, and variable-speed configurations.
- Sustained Finishing Performance — A properly functioning gearbox maintains consistent blade speed and rotation across the full trowel head, delivering the even, controlled finishing strokes that flatwork contractors depend on. A worn or failed gearbox causes erratic blade behavior and uneven concrete surface quality.
- Verified OEM Part Number — Part number 5000111641 is the current Wacker Neuson-authorized reference for this gearbox, eliminating the risk of ordering an incompatible or superseded component.
The gearbox on a walk-behind power trowel transfers engine or motor power to the rotating spider assembly that drives the finishing blades. It controls the speed and mechanical advantage between the power source and the blade rotation, allowing the trowel to maintain consistent surface pressure across the concrete. When a gearbox wears out or fails — typically through gear tooth wear, bearing failure, or oil seal breakdown — blade speed becomes inconsistent, the trowel may vibrate abnormally, and surface finish quality deteriorates. Replacing a compromised gearbox restores full rotational control and keeps the trowel producing the flat, burnished finish that structural and decorative concrete work demands.
Part Details
| Part Number | 5000111641 |
|---|---|
| Old Part Number | 0111641 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gearbox |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 1220mm/48in Walk-behind Trowel | CT48AGP | 5000007602, 5000007603 |
| 1220mm/48in CE Walk-behind Tro wel | CT48AGP-E | 5000008031, 5000008032 |
| 1220mm/48in Walk-behind Trowel | CT48ADP | 5000007598, 5000007599, 5000008199 |
| 1220mm/48in CE Walk-behind Tro wel | CT48ADP-E | 5000008027, 5000008028 |
| 1220mm/48in CE Walk-behind Tro wel | CT48AGT-E | 5000007601, 5000008020 |
| 1220mm/48in Walk-behind Trowel | CT48AGT | 5000008019, 5000008041 |
| 1220mm/48in CE Walk-behind Tro wel | CT48ADT-E | 5000007597, 5000008016 |
| 1220mm/48in Walk-behind Trowel | CT48ADT | 5000008015, 5000008040 |
| 1220mm/48in Walk-behind Trowel | CT48BDT | 5000008017 |
| 1220mm/48in Variable Speed Wal k-behind Trowel | CT48AVP | 5000009219, 5000009220 |
| 1220mm/48in Variable Speed Wal k-behind Trowel | CT48AVT | 5000009217, 5000009218 |
| 915mm/36in Variable Speed Walk #NAME? | CT36AVP | 5000009235, 5000009236 |
| 915mm/36in Variable Speed Walk #NAME? | CT36AVT | 5000009233, 5000009234 |
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.
