The Wacker Neuson Crankcase 4 Takt is a genuine OEM component designed for the BS50-4As, BS60-4As, BS65-4As, BS70-4As, and BS72-4As series 4-stroke rammers. Sourced directly from Wacker Neuson, this crankcase is manufactured to the exact tolerances and material specifications of the original part — ensuring a correct, trouble-free installation. Fitment covers a broad range of BS-series rammer configurations including US and standard variants, giving you confidence that part number is the right choice across multiple machine builds.
Key Features
- OEM Casting Integrity — Produced to Wacker Neuson's original dimensional and material specifications, preserving the structural strength and sealing surfaces the 4-stroke engine depends on.
- Direct Bolt-On Replacement — Matches original mounting points, bearing bores, and gasket faces so the engine assembly goes back together using your existing hardware and seals.
- Broad BS-Series Compatibility — Fits BS50-4As, BS60-4As, BS65-4As, BS70-4As, and BS72-4As rammers across standard and US-spec builds, covering multiple serial number ranges.
- Engine Containment You Can Trust — A correctly seated crankcase maintains proper oil retention and bearing alignment; a cracked or warped crankcase leads to oil loss, bearing failure, and engine seizure.
- Fuel System Integrity — The crankcase forms part of the sealed lower engine environment; using a genuine OEM casting prevents oil contamination and maintains correct crankcase pressure for reliable 4-stroke combustion.
The crankcase is the structural core of the engine — it houses the crankshaft, supports the main bearings, and forms the sealed chamber that separates the oil sump from the upper engine components. On a 4-stroke rammer like the Wacker Neuson BS series, it also plays a direct role in maintaining proper lubrication pressure throughout the engine. When a crankcase cracks, warps, or develops damaged sealing surfaces, oil migrates where it shouldn't, bearing support is compromised, and the engine will quickly overheat or seize under the repeated impact loads a rammer generates. Replacing a damaged crankcase with a genuine OEM part like the 5100054181 restores the engine's structural foundation and protects every component housed within it.
Part Details
| Part Number | 5100054181 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankcase 4 Takt |
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.
