The Wacker Neuson Unbalance Loose is a genuine OEM component designed for the RD40-130 and RD45-140 series tandem rollers, including C, O, DPF, and.3 variants. As a direct sourced OEM part, it carries the exact specifications required by Wacker Neuson for use across the full range of compatible RD-series machines. This part fits an extensive lineup of RD40-130 and RD45-140 configurations, giving fleet operators and service technicians confidence that a single part number covers their needs across multiple machine variants. Keep part number on hand to stay prepared for planned maintenance or unscheduled repairs.
Key Features
- Genuine OEM Vibration Spec Integrity — Manufactured to Wacker Neuson's exact unbalance mass tolerances, ensuring the vibratory system delivers consistent compaction force output.
- Direct Drop-In Replacement — Engineered to install into the drum assembly using the same mounting interface as the original, with no reworking of surrounding components.
- Broad RD-Series Coverage — Compatible with RD40-130 and RD45-140 machines across standard, C, O, DPF, and .3 variants, covering a wide spread of production series in a single part.
- Compaction Performance Maintained — A correctly functioning unbalance loose keeps centrifugal force at rated levels; a worn or incorrectly fitted unit causes uneven compaction and surface defects in finished lifts.
- Operational Balance and Bearing Protection — Proper unbalance mass balance reduces abnormal loading on drum bearings, helping the assembly run smoothly and avoiding premature bearing wear.
The unbalance loose is the eccentric mass component housed within the roller drum that generates the centrifugal force responsible for vibratory compaction. As the drum shaft spins, this offset weight creates a rotating imbalance that transmits compaction energy down through the drum and into the material being compacted. If this component becomes loose, damaged, or incorrectly seated, the drum's vibration amplitude drops or becomes erratic — resulting in under-compacted lifts, increased pass counts, and added stress on surrounding drivetrain components.
Part Details
| Part Number | 5100011806 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Unbalance Loose |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130 Tandem Roller | RD40-130 | 5100011391, 5100047382 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392, 5100047383 |
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| RD40-130c | RD40-130c | 5100047384 |
| RD45-140c | RD45-140c | 5100047385 |
| RD40-130o | RD40-130o | 5100047386 |
| RD45-140o | RD45-140o | 5100047387 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RD40-130 DPF | RD40-130 DPF | 5100055777 |
| RD45-140 DPF | RD45-140 DPF | 5100055778 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD40-130o DPF | RD40-130o DPF | 5100055781 |
| RD45-140o DPF | RD45-140o DPF | 5100055782 |
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.
