The Wacker Neuson Shaft Core SM4E is a genuine OEM component designed for M1500 and M2500 series mixers, including 120V US, 230V EU, and 120V GB configurations. Sourced directly from Wacker Neuson, this part meets the exact dimensional and material standards of the original — so you can install it with confidence and get your mixer back to work. Confirmed fitment spans the M1500/120 US, M1500/230 EU, M1500/120 GB, M2500/120 US, M2500/230 EU, and M2500/120 GB models.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's original tolerances for the SM4E drive system, ensuring the shaft core transmits torque accurately without premature wear or play.
- Direct-Fit Replacement — Matches the original shaft geometry and connection points for a straight swap into the SM4E drive assembly with no reworking of surrounding components.
- Broad Series Compatibility — Fits both M1500 and M2500 mixer families across 120V US, 230V EU, and 120V GB voltage variants, covering a wide range of Wacker Neuson mixer configurations.
- Sustained Drive Performance — A correctly functioning shaft core maintains consistent power transfer from the motor to the mixing drum; a worn or damaged shaft core causes erratic drum rotation, vibration, and accelerated drivetrain damage.
- Verified OEM Part Number — Part number 5100022729 is the authorised Wacker Neuson reference, eliminating guesswork and ensuring you receive the correct component for your machine.
The shaft core is the central rotating element within the SM4E drive assembly, transmitting power from the motor through the drivetrain to turn the mixing drum. It must maintain precise concentricity and structural integrity under continuous rotational load — any bending, scoring, or wear on the shaft core disrupts power transfer and places additional stress on bearings, seals, and the drum coupling. Replacing a worn shaft core promptly restores smooth, consistent drum rotation and prevents secondary damage to surrounding drivetrain components.
Part Details
| Part Number | 5100022729 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Shaft Core SM4E |
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.
