The Wacker Neuson Pump is a genuine OEM replacement built for the BS50-4As, BS60-4As, BS70-4As, BS65-4As, and BS72-4As series gasoline vibratory rammers. As a direct OEM part, it is manufactured to the same specifications as the original component that left the factory, ensuring a correct, hassle-free installation. This pump is confirmed compatible across multiple configurations of the BS 4-stroke rammer lineup, including US and international variants. If your rammer's lubrication or fuel delivery is showing signs of wear or failure, part number is the correct authorized replacement to restore full operation.
Key Features
- Genuine OEM Construction: — Manufactured to the original production specification, ensuring correct flow rates and internal tolerances for the BS-series 4-stroke engine pump circuit.
- Drop-In Installation: — Engineered to match the original mounting interface and port configuration of the BS rammer pump housing — no adapting or reworking required.
- Broad BS-Series Fitment: — Confirmed compatible with BS50-4As, BS60-4As, BS70-4As, BS65-4As, and BS72-4As rammers, covering multiple production runs and regional variants including US and CN configurations.
- Sustained Compaction Output: — A properly functioning pump maintains consistent lubrication and fluid delivery to keep the rammer delivering full impact energy in trench and cohesive soil compaction — a worn pump leads to increased internal wear and loss of compaction performance.
- Authorized Replacement Part: — Sourced directly from Wacker Neuson, so you can be confident the part carries the correct OEM part number 5100049178 and is not a substitute or cross-referenced alternative.
The pump in a BS-series 4-stroke rammer is responsible for circulating engine oil through the lubrication system, ensuring that internal moving components remain properly protected during high-frequency impact operation. Without adequate oil flow, friction builds rapidly across critical engine surfaces, accelerating wear and risking premature engine failure. When this pump begins to fail — whether through wear, seal degradation, or internal damage — oil pressure drops, the engine loses protection, and the rammer's compaction output becomes inconsistent or stops entirely; replacing it promptly with the correct OEM part restores proper lubrication and full machine performance.
Part Details
| Part Number | 5100049178 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BS50-4AS 11IN US | BS50-4As 11in US | 5100030598 |
| BS50-4As 11in | BS50-4As 11in | 5100030599 |
| BS60-4AS 11IN US | BS60-4As 11in US | 5100030605, 5100054151 |
| BS60-4As 11in | BS60-4As 11in | 5100030606, 5100037562, 5100051581 |
| BS70-4As 11in US | BS70-4As 11in US | 5100030610 |
| BS70-4As 11IN | BS70-4As 11in | 5100030611 |
| Rammer BS60-4As 11in CN | BS60-4As 11in CN | 5100058869 |
| BS65-4As 11in | BS65-4As 11in | 5100061307 |
| BS72-4As 11in | BS72-4As 11in | 5100061309 |
| 4 stroke rammer BS50-4As, 280 mm adapter | BS50-4As 11in o. bsz | 5100068310 |
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.
