The Wacker Neuson is a genuine OEM Unbalance Shaft designed for the RD24-100 series tandem rollers, covering standard, C, O, DPF, and electric variants across multiple production generations. As a direct factory part, this component is produced to the same specifications as the original, ensuring a correct drop-in fit within the drum assembly. Compatible models include the RD24-100, RD24-100c, RD24-100o, RD24-100 DPF, RD24e-100, and their respective C and O configurations. When vibration output starts to feel inconsistent or the drum compaction performance drops off, the unbalance shaft is a primary diagnostic target — and sourcing a genuine OEM replacement keeps the machine operating as designed.
Key Features
- Genuine OEM Vibration Specification — Manufactured by Wacker Neuson to the original eccentric mass and shaft geometry required for consistent compaction amplitude and frequency.
- Direct-Fit Drum Assembly Replacement — Engineered to the same dimensional tolerances as the original, allowing the shaft to seat and rotate correctly within the drum housing without modification.
- Broad RD24-100 Series Coverage — Fits standard, C, O, DPF, and electric (RD24e) variants across multiple model generations, from early production units through current-spec machines.
- Restores Full Compaction Performance — A worn or failed unbalance shaft reduces drum vibration output, resulting in under-compacted material and failed density tests; replacing it restores full rated compaction force.
- Factory-Authorized Replacement — Sourced directly through the Wacker Neuson parts network, so you can be confident the part number 5100012031 matches your machine's original component exactly.
The unbalance shaft is the core vibration-generating component inside a compaction roller's drum. As the shaft rotates at high speed, its eccentric mass creates centrifugal force that drives the drum's vibration cycle, which is what allows the roller to compact soil, asphalt, or base material to the required density. When the unbalance shaft wears, cracks, or fails, vibration output drops or becomes erratic — the drum may still turn, but compaction effectiveness falls off significantly, which can lead to failed material density readings and costly rework on the job.
Part Details
| Part Number | 5100012031 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Unbalance Shaft |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD24-100 Tandem Roller | RD24-100 | 5100011385, 5100047374 |
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD24-100c | RD24-100c | 5100047376 |
| RD24-100o | RD24-100o | 5100047378 |
| RD24-100 DPF | RD24-100 DPF | 5100047380 |
| RD24-100c DPF | RD24-100c DPF | 5100047391 |
| RD24-100o DPF | RD24-100o DPF | 5100047393 |
| RD24e-100 | RD24-100e | 5100066731 |
| RD24e-100c | RD24-100ce | 5100066733 |
| RD24e-100o | RD24-100oe | 5100066735 |
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.
