The Wacker Neuson Unbalance is a genuine OEM component designed for the RD18-80 and RD18-100 series tandem rollers, including US and SE variants. Sourced directly from Wacker Neuson, this part meets the exact specifications required for correct vibratory compaction performance across all covered machine configurations. It fits a broad range of RD18-series models, making it the straightforward choice when servicing these rollers. Verify your model number against the fitment list before ordering to confirm compatibility.
Key Features
- Genuine OEM Vibration Mass Integrity — Manufactured to Wacker Neuson's original eccentric weight specification, ensuring the unbalance assembly delivers the correct centrifugal force for consistent compaction output.
- Direct Drop-In Replacement — Engineered to match the original mounting interface and shaft dimensions of the RD18 drum assembly, so the part seats correctly without modification.
- Broad RD18 Series Coverage — Confirmed fitment across RD18-80 and RD18-100 models, including standard, US, and SE configurations across multiple production series.
- Restored Compaction Frequency and Amplitude — A correctly weighted unbalance shaft spins true and delivers the designed vibration output; a worn or damaged unit causes uneven compaction, drum wobble, and accelerated bearing wear.
- Long-Term Drum Assembly Reliability — Using the OEM-specified unbalance weight keeps eccentric loads within design tolerances, protecting bearings, seals, and the drum shell from premature fatigue.
The unbalance — also called an eccentric weight or vibration exciter — is the rotating component inside a compaction roller's drum that generates the vibratory force used to consolidate soil, asphalt, or sub-base material. As the shaft spins, the off-center mass creates centrifugal force, which is transmitted through the drum and into the surface being compacted. When the unbalance is worn, cracked, or out of balance, the drum loses its designed vibration amplitude and frequency, resulting in poor compaction density, increased pass counts, and added stress on surrounding drivetrain components.
Part Details
| Part Number | 5100011713 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Unbalance |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 Tandem Roller | RD18-80 | 5100011382, 5100047360 |
| RD18-100 Tandem Roller | RD18-100 | 5100011383, 5100047361 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| Vibration Roller | RD18-100 SE | 5100044989 |
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.
