The Wacker Neuson Woodruff Key is a genuine OEM Woodruff Key designed for the BS50-4s, BS60-4s, BS50-4, and BS60-4 series gasoline vibratory rammers, with additional fitment covering select VP series vibratory plate compactors and the GPi1700 portable inverter generator. As a genuine Wacker Neuson OEM component, the is sourced directly from the manufacturer and meets the exact specifications of the original part installed at the factory. This key is a small but critical drivetrain component — using the correct OEM specification part ensures proper shaft-to-hub alignment and prevents premature wear or loosening under the high-vibration conditions these rammers generate. Confirm your model and machine number before ordering to ensure a correct match across the wide range of BS50 and BS60 variants this part covers.
Key Features
- Exact OEM Dimensional Specification — Machined to the precise width, height, and radius tolerances required for a secure shaft-to-hub fit in high-vibration rammer and compactor drivetrains.
- Genuine Wacker Neuson Part — Supplied as an authentic OEM component under part number 5000156075, ensuring full manufacturer traceability and correct material grade.
- Broad BS-Series Fitment — Covers a wide range of BS50-4, BS50-4s, BS60-4, and BS60-4s vibratory rammer configurations, including standard, EU, and high-altitude variants, as well as select VP plate and GPi1700 generator applications.
- Drivetrain Integrity Under Vibration — A correctly seated Woodruff Key locks the crankshaft or drive shaft component in angular position; a worn or sheared key allows the mating hub to slip, causing loss of drive and accelerated damage to surrounding components.
- Drop-In Replacement — Matches the original key profile and seating depth, allowing straightforward installation without machining or modification to the keyway.
A Woodruff Key is a small, semi-circular metal key that sits in a matching curved slot machined into a shaft, with the flat top face engaging a corresponding keyway in a hub, sprocket, or flywheel. Its purpose is to prevent rotational slippage between the shaft and the mounted component, transmitting torque reliably while keeping the two parts in fixed angular alignment. In a vibratory rammer — where engine-driven eccentric weights generate intense, repetitive shock loads — the Woodruff Key is subjected to significant shear stress with every stroke; if it shears or wears loose, the drive connection fails and the rammer loses its compaction stroke entirely.
Part Details
| Part Number | 5000156075 |
|---|---|
| Old Part Number | 0156075 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Woodruff Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Rammer with 280mm/11 in Shoe | BS50-4s | 5000620908, 5000620322, 5000620071, 5000620078, 5200000679, 5200000644, 5200000662, 5200000680 |
| BS60 -4s RMR,11 PL SHOE,HA 42 | BS60-4s | 5000620387, 5000620909, 5000620323, 5000620073, 5000620072, 5000620563, 5000620820, 5200000647, 5200000648, 5200000667, 5200000668, 5200000683, 5200000674, 5200000675, 5200011110, 5200011111 |
| Four-cycle Rammer,280mm/11in S hoe | BS60-4s EU | 5000620388, 5000620074, 5000620483, 5000620813, 5000620812, 5000620819, 5000620816, 5200003883, 5200004239 |
| Four-stroke Vibratory Rammer, 280mm/11in Shoe | BS50-4s EU | 5000620811 |
| Four-cycle Vibratory Rammer, 2 20mm/11in Shoe | BS50-4 | 5000620077, 5000620108, 5000009386 |
| Four-stroke Vibratory Rammer, 280mm/11in Shoe | BS60-4 | 5000620109, 5000620110, 5000009340, 5000620000, 5000620051, 5200022984 |
| VP1030R-VIBROPLATE | VP1030R | 5000008702, 5000009504 |
| 280/11in Shoe, Vibratory Ramme r | MS54 | 5200008223, 5200013518 |
| Vibratory Rammer with 280mm/11 in Shoe | BS50-4HO EU | 5000620818 |
| Vibratory Soil Plate, 40 kN | VP40H | 5000009535 |
| Vibratory Rammer, 280mm/11in S hoe | BS500-4 | 5000009329 |
| Vibratory Rammer, 280mm/11in S hoe | BS600-4 | 5000009331 |
| Portable Inverter Generator | GPi1700 | 5000620778 |
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.
