The Wacker Neuson Governor Spring 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, part is manufactured to the exact tension and material specifications required to maintain proper engine speed regulation across the full range of BS-series rammer models. Fitment covers a wide span of BS50 and BS60 four-stroke rammer configurations, including standard, high-altitude, and EU variants, as well as MS54 models. Keep a spare on hand and your rammer is back in service fast when the original spring fatigues or breaks.
Key Features
- Genuine OEM Spring Tension: — Manufactured to the precise load rating required for correct governor actuation — not an approximation, but the exact Wacker Neuson specification.
- Drop-In Replacement: — Matches the original hook geometry and coil dimensions of the factory spring, so it seats correctly in the governor linkage without modification.
- Broad BS-Series Fitment: — Confirmed for BS50-4, BS50-4s, BS60-4, BS60-4s, and MS54 rammers across standard, high-altitude, and EU configurations.
- Engine Speed Stability: — A correctly tensioned governor spring holds steady RPM under varying load — a worn or broken spring causes hunting, surging, or runaway engine speed that puts impact energy and operator safety at risk.
- Fuel System Safety Relevance: — The governor spring is part of the engine's speed-limiting system; using a spring with incorrect tension can result in over-revving and potential fuel system or carburetor damage.
The governor spring is a small but critical component in the engine's mechanical speed-control system. It applies a counterforce against the centrifugal flyweights in the governor assembly, and the balance between spring tension and flyweight force is what keeps engine RPM stable under changing loads. When this spring stretches, fatigues, or breaks, the governor loses its ability to regulate speed accurately — resulting in erratic RPM, engine surging, or uncontrolled over-revving that can damage the carburetor, fuel system, and internal engine components. Replacing the spring with a genuine OEM part like the Wacker Neuson 5000159186 restores that calibrated balance and ensures the rammer delivers consistent compaction force on every stroke.
Part Details
| Part Number | 5000159186 |
|---|---|
| Old Part Number | 0159186 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Governor Spring |
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, 5200013518 |
| 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.
