The Wacker Neuson Flex Shafts SM 2E is a genuine OEM flexible shaft assembly designed for the M1500 and M2500 series internal concrete vibrators. Sourced directly from Wacker Neuson, this part is manufactured to the exact specifications of the original component, ensuring correct fit and consistent performance across all supported configurations. Confirmed fitment spans both 120V US and 230V EU variants of the M1500 and M2500, as well as the M2500/120 GB model. Whether you're replacing a worn shaft on a job-critical vibrator or stocking a spare, part number is the verified OEM solution.
Key Features
- Genuine OEM Flexible Shaft Construction — Engineered to transmit rotational force with the correct torsional stiffness and flexibility required for internal concrete vibrator heads, maintaining consistent vibration output under continuous use.
- Drop-In Compatibility — Connects directly to the M1500 and M2500 drive motor and vibrator head using the original mounting interface, requiring no modification to existing hardware.
- Broad M1500 and M2500 Series Fitment — Covers 120V US, 230V EU, and 120V GB configurations of both the M1500 and M2500, including the M2500/230 EU W drive engine variant.
- Sustained Vibration Delivery — A properly functioning flex shaft transfers full motor speed to the vibrator head, ensuring effective concrete consolidation. A worn or damaged shaft causes erratic vibration, head slippage, or complete loss of output.
- OEM Part Number Verified — Listed under Wacker Neuson part number 5100005704, eliminating guesswork when cross-referencing your machine's serial number or parts manual.
The flex shaft on an internal concrete vibrator serves as the mechanical link between the drive motor and the vibrator head, transmitting rotational energy down into the concrete to consolidate the mix and eliminate air voids. It must flex freely through tight curves while still delivering consistent torque without whipping or binding. Over time, the inner cable and outer housing can wear, kink, or fray — leading to reduced vibration intensity, heat buildup at the coupling points, or a complete failure to drive the head. Replacing a degraded flex shaft with a correct OEM unit like the 5100005704 restores full consolidation performance and protects the drive motor from the strain caused by a damaged shaft.
Part Details
| Part Number | 5100005704 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flex Shafts SM 2E |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| M1500/120 | M1500/120 US | 5100004500 |
| M1500/230 | M1500/230 EU | 5100005142 |
| M1500/120 GB | M1500/120 GB | 5100005145 |
| M2500/120 | M2500/120 US | 5100006000 |
| M2500/230 | M2500/230 EU | 5100009717 |
| M2500/120 | M2500/120 GB | 5100010890 |
| Drive Engine | M2500/230 EU W | 5100047311 |
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.
