The Wacker Neuson Crankshaft Complete is a genuine OEM component designed for the BS50-4As, BS60-4As, BS65-4As, BS70-4As, and BS72-4As 4-stroke rammer series. As a factory-sourced assembly, this crankshaft complete ships with all integrated components intact, delivering a straight-swap solution that matches the original build specification of your machine. Compatible across both US and standard international variants of the BS-series rammer lineup, part number covers a wide range of serial configurations — making it a dependable stocking part for fleet operators and service technicians alike. Confirm your model number against the fitment list before ordering to ensure an exact match.
Key Features
- Genuine OEM Crankshaft Assembly — Sourced directly from Wacker Neuson, this crankshaft complete is manufactured to the same tolerances and journal specifications as the original, ensuring correct stroke geometry and bearing surface integrity throughout the rammer's service life.
- Complete Assembly, Ready to Install — Supplied as a fully assembled crankshaft unit, eliminating the need to source and press individual components — drop it in as a direct replacement for the worn or damaged original.
- Broad BS-Series Compatibility — Fits BS50-4As, BS60-4As, BS65-4As, BS70-4As, and BS72-4As rammers, including US and CN market variants across multiple serial ranges.
- Restores Full Compaction Performance — A worn crankshaft causes erratic stroke, reduced impact energy, and excessive vibration. Replacing with 5100049243 restores consistent ram stroke and rated compaction output.
- Critical Fuel and Ignition Timing Integrity — The crankshaft drives timing for both the fuel system and ignition cycle; a correctly fitted OEM assembly maintains proper phase relationships, preventing hard-start and misfiring conditions.
The crankshaft is the central rotating component of a 4-stroke engine, converting the linear force of the piston's power stroke into the rotational motion that drives the rammer's impact mechanism. In a compaction rammer like the Wacker Neuson BS series, the crankshaft also governs the timing of intake, compression, combustion, and exhaust cycles — meaning any wear to the journals, bearing surfaces, or counterweights directly affects both engine efficiency and compaction force. When a crankshaft fails or wears beyond tolerance, operators typically experience heavy vibration, oil loss through the bearings, loss of compression, or complete engine seizure, making timely replacement essential to keeping the machine in safe working condition.
Part Details
| Part Number | 5100049243 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankshaft Complete |
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.
