The Wacker Neuson 5100012957 is a genuine OEM Gear Hub Motor designed for the RD24-100, RD27-120, and RD28-120 series tandem rollers. As a direct OEM part, the 5100012957 is manufactured to the same specifications as the original component installed at the factory, ensuring a correct fit within the drum drive system. This part covers an extensive range of RD24, RD27, and RD28 variants — including standard, combination, DPF, and open-ROPS configurations — making it the right choice whether you are servicing a US-market machine or an international-spec unit. Confirm your model number against the fitment list before ordering to ensure compatibility with your specific roller configuration.
Key Features
- Genuine OEM Construction: — Engineered to exact torque and hydraulic interface specifications for the RD-series drum drive system, ensuring the gear hub motor delivers the correct rotational output under compaction loads.
- Drop-In Drum Drive Replacement: — Mounts directly to the drum assembly using the original bolt pattern and hydraulic port alignment, so installation follows the standard service procedure without custom adaptation.
- Broad RD-Series Fitment: — Compatible with a wide range of RD24-100, RD27-120, and RD28-120 tandem roller variants, including standard, closed-ROPS, open-ROPS, combination, and DPF-equipped configurations.
- Sustained Drum Drive Performance: — A properly functioning gear hub motor maintains consistent drum speed and traction across asphalt and soil compaction passes. A worn or failed unit causes drum slip, uneven compaction, or complete loss of drive to the affected drum.
- Hydraulic System Integrity: — As part of the drum's hydraulic drive circuit, a correctly sealed and rated gear hub motor prevents internal bypass and maintains system pressure, protecting the hydraulic pump and associated components from excessive wear.
The gear hub motor is the final drive component in the drum propulsion system of the tandem roller. It receives pressurized hydraulic flow from the drive circuit and converts that flow into the rotational force that turns the compaction drum. When this component wears or fails, the affected drum may lose drive entirely or deliver inconsistent compaction force, resulting in uneven mat density on asphalt passes or insufficient soil compaction. Replacing a failed gear hub motor with a genuine OEM unit restores the hydraulic-mechanical efficiency the machine was designed to operate at.
Part Details
| Part Number | 5100012957 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gear Hub Motor |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD27-120 Tandem Roller | RD27-120 | 5100011386 |
| RD28-120c DPF | RD28-120c DPF | 5100047392 |
| RD24-100o | RD24-100o | 5100047378 |
| RD28-120 Tandem Roller | RD28-120 US | 5100021756 |
| RD24-100 Tandem Roller | RD24-100 | 5100011385, 5100047374 |
| RD28-120o | RD28-120o | 5100047379 |
| RD27-120o | RD27-120o.3 | 5100047373 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD24-100c DPF | RD24-100c DPF | 5100047391 |
| RD28-120 | RD28-120 | 5100047375 |
| RD24-100c | RD24-100c | 5100047376 |
| RD28-120c | RD28-120c | 5100047377 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD24-100 O Tandem Roller | RD24-100 O | 5100011389 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
| RD28-120 O Tandem Roller | RD28-120O US | 5100021800 |
| RD27-120 O Tandem Roller | RD27-120 O | 5100011390 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
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.
