The Wacker Neuson Lock Nut is a genuine OEM component designed for the BS50-4, BS50-4s, BS60-4, and BS60-4s series gasoline vibratory rammers. As a direct OEM replacement, this lock nut is sourced from Wacker Neuson and meets the exact specifications of the original part installed at the factory. Fitment extends across a wide range of BS-series rammer configurations, including standard, high-altitude, and EU variants with 280mm/11-inch shoe setups. Verifying your machine's model number before ordering ensures a correct, hassle-free installation.
Key Features
- Genuine OEM Torque Retention: — Manufactured to Wacker Neuson's original thread pitch and hardness grade, ensuring the nut holds clamp load under the continuous vibration loads that rammers generate.
- Drop-In Hardware Replacement: — Matches the original thread form and wrench size, so it installs directly onto the existing fastener position without modification to surrounding components.
- Broad BS-Series Fitment: — Compatible with BS50-4, BS50-4s, BS60-4, BS60-4s, and their EU and high-altitude variants, as well as MS54, BS500-4, and BS600-4 rammer models.
- Vibration-Resistant Locking Action: — The lock nut's self-locking design resists loosening caused by the high-frequency impact cycles inherent to vibratory rammer operation, helping maintain structural integrity between service intervals.
- Critical Fastener Safety: — On high-vibration equipment, a loose or failed lock nut can allow connected components to shift or detach mid-operation. Using a correctly rated OEM replacement is essential for safe, controlled machine use.
A lock nut is a fastener engineered to resist unintentional loosening under sustained vibration — a condition that is constant and severe in vibratory rammer operation. Unlike a standard nut, it uses a locking element, such as a nylon insert or a deformed thread profile, to maintain clamping force even as the machine cycles through thousands of impact strokes. When a lock nut wears out, strips, or backs off, the components it secures can shift, creating play that accelerates wear across adjacent parts or leads to a mechanical failure mid-use. Replacing it with the correct OEM part, like the Wacker Neuson 5000159220, restores the intended clamping integrity and keeps the rammer operating safely.
Part Details
| Part Number | 5000159220 |
|---|---|
| Old Part Number | 0159220 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Nut |
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 |
| 280/11in Shoe, Vibratory Ramme r | MS54 | 5200008223 |
| Vibratory Rammer with 280mm/11 in Shoe | BS50-4HO EU | 5000620818 |
| Vibratory Rammer, 280mm/11in S hoe | BS500-4 | 5000009329 |
| Vibratory Rammer, 280mm/11in S hoe | BS600-4 | 5000009331 |
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.
