The Wacker Neuson Key A18 X 11 X 50 is a genuine OEM component designed for the RT and RTL/RTK series remote-controlled vibratory trench rollers. Sourced directly from Wacker Neuson, this key ensures an exact fit within the drivetrain assembly across a broad range of SC, SC2, and SC3 generation machines. Compatible models include the RT56-SC, RT82-SC, RT56-SC2, RT82-SC2, RTx-SC2, RTLx-SC3, RTL82-SC3, RTKx-SC3, RTK82-SC3, RT560, and RT820 trench rollers. When it comes to precision drivetrain components like this, using the correct genuine OEM part is the straightforward choice for maintaining proper shaft and gear engagement.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to Wacker Neuson's exact A18 x 11 x 50 specification, ensuring correct shaft-to-hub engagement without slop or misalignment.
- Direct Drivetrain Replacement — Drops into the keyway slot on the drive shaft just as the original did, restoring positive torque transfer between rotating components.
- Broad Trench Roller Compatibility — Fits RT56-SC, RT82-SC, RT56-SC2, RT82-SC2, RTx-SC2, RTLx-SC3, RTL82-SC3, RTKx-SC3, RTK82-SC3, RT560, and RT820 models across multiple production generations.
- Torque Transmission Integrity — A correctly fitted key locks the shaft and hub together, delivering full compaction force to the drums; a worn or sheared key causes slippage, vibration loss, and uneven compaction output.
- Drivetrain Safety Relevance — In remote-controlled trench rollers operating in tight trenches, a failed drive key can cause unpredictable drum behavior; replacing a worn key promptly maintains predictable machine control.
A woodruff or parallel drive key is a small but load-critical component that sits in a machined slot between a rotating shaft and a hub or gear, preventing the two from spinning independently of each other. In a vibratory trench roller, it transfers engine or motor torque directly to the drum drive, meaning compaction force depends entirely on this component remaining intact and properly seated. When a key shears or wears, the shaft spins freely inside the hub, resulting in loss of drive to one or both drums and an immediate drop in compaction performance — making prompt replacement essential.
Part Details
| Part Number | 5000116873 |
|---|---|
| Old Part Number | 0116873 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Key A18 X 11 X 50 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Trench Roller | RT82-SC2 | 5000620530, 5000620293, 5000620367, 5000620525, 5000620528, 5000620529, 5000620526, 5000620527 |
| Vibratory Trench Roller | RT82-SC2 EU | 5000620845, 5200003107 |
| Vibratory Trench Roller | RT56-SC2 | 5000620294, 5000620368 |
| Vibratory Trench Roller | RT56-SC2 EU | 5000620844 |
| Vibratory Trench Roller | RT82-SC | 5000009025, 5000620365, 5000620324, 5000620353, 5000620480, 5000620481, 5000620482 |
| Vibratory Trench Roller | RT56-SC | 5000009026, 5000620366 |
| RTLx-SC3 TRENCH ROLLER,GRN | RTLx-SC3 | 5200019251, 5200019250, 5200019254, 5200019252, 5100018515, 5100018516, 5200019253, 5100038346, 5100045091, 5100052332, 5100052269 |
| RTL82-SC3 ROLLER,SMOOTH DRUM | RTL82-SC3 | 5200019234, 5200019238, 5200019232, 5200019233, 5200019235, 5200019236, 5200019237, 5200019239, 5200022541 |
| RTKx-SC3 Trench Roller | RTK82-SC3 | 5200019257, 5200019256, 5200019255 |
| RTKx-SC3 TRENCH ROLLER,GRN | RTKx-SC3 | 5200019258, 5200019259, 5100018517, 5100018518, 5100034371, 5100037397, 5100039613, 5100052333, 5100052334, 5100052335, 5100052336, 5100052337 |
| Vibratory Trench Roller | RT560 | 5000009001, 5000009000 |
| Vibratory Trench Roller | RT820 | 5000009003, 5000009002 |
| Trench Roller | RTx-SC2 EU | 5100028378, 5200008540, 5100052330 |
| RTx-SC2 TRENCH ROLLER | RTx-SC2 | 5200008538, 5200008539, 5200018044, 5200018329 |
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.
Wacker Neuson