The Wacker Neuson Shaft Core SM7E is a genuine OEM component designed for M1500 and M2500 series internal concrete vibrators. As a direct Wacker Neuson OEM part, the is manufactured to the exact tolerances required for proper power transmission through the vibrator shaft assembly, ensuring the vibrating head performs at rated frequency and amplitude. Confirmed fitment spans multiple M1500 and M2500 configurations including 120V US, 230V EU, and 120V GB variants, covering a wide range of jobsite electrical standards. When your shaft core wears or fails, replacing it with the correct OEM part keeps the drive system operating as intended.
Key Features
- OEM-Matched Drive Tolerances — Manufactured to Wacker Neuson specification, ensuring the core transmits rotational force at the correct frequency and amplitude for consistent concrete consolidation.
- Drop-In Shaft Replacement — Engineered to seat directly within the SM7E vibrator shaft assembly, maintaining proper alignment without shimming or modification to the housing.
- Broad M1500 & M2500 Coverage — Fits M1500/120 US, M1500/230 EU, M1500/120 GB, M2500/120 US, M2500/230 EU, and M2500/120 GB models, including Drive Engine variants.
- Sustained Vibration Output — A sound shaft core maintains the eccentric mass action that drives effective air and water removal from fresh concrete; a worn core reduces head performance and risks incomplete consolidation.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, so you receive the same component installed at the factory — no guesswork on material grade or dimensional fit.
The shaft core is the internal drive element that runs through the flexible vibrator shaft, transferring rotational energy from the motor to the vibrating head. As it spins, it drives the eccentric weight inside the head, producing the high-frequency vibration needed to consolidate fresh concrete and eliminate voids. Over time, the core can wear, develop surface fatigue, or fracture under repeated flexing — symptoms typically show up as reduced vibration intensity, unusual noise from the shaft, or complete loss of head movement. Replacing a worn shaft core with the correct OEM part restores full drive efficiency and extends the working life of the surrounding shaft assembly.
Part Details
| Part Number | 5100031330 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Shaft Core SM7E |
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.
