The Wacker Neuson Exciter Motor is a genuine OEM component designed for the RD12A-90 and RD12-90 series tandem rollers. As a direct factory replacement, this motor matches the original unit exactly, ensuring the drum vibration system operates at the correct frequency and amplitude for consistent asphalt and soil compaction results. Confirmed fitment includes RD12A-90 and RD12-90 configurations, including solid ROPS and foldable ROPS variants.
Key Features
- Genuine OEM Electrical Output Match — Sourced directly from Wacker Neuson, this exciter motor meets the original torque and rotational speed specifications required to generate proper drum vibration — no guesswork on amplitude or frequency.
- Direct Drum Vibration System Fit — Designed to bolt directly into the existing motor mount on RD12A-90 and RD12-90 drums, with matching port connections and shaft dimensions for a straightforward swap.
- Broad RD12 Series Coverage — Compatible with multiple RD12A-90 and RD12-90 configurations, including solid ROPS, foldable ROPS, and green drum variants.
- Sustained Compaction Performance — A properly functioning exciter motor delivers steady, even drum vibration, which is critical for achieving target compaction density on asphalt lifts and subbase layers. A failing motor produces inconsistent or absent vibration, leading to undercompacted passes.
- Verified OEM Part Number — Part number 5200001719 is the factory-issued reference for this application, so you can order with confidence that you're receiving the correct motor for your machine.
The exciter motor drives the eccentric weight assembly housed inside the roller drum, converting hydraulic or electrical energy into the high-frequency vibration that gives a tandem roller its compactive force. Without a functioning exciter motor, the drum rolls in static mode only, dramatically reducing the machine's ability to achieve specified compaction density — particularly on asphalt. When the motor wears or fails, operators typically notice a loss of vibration in one or both drums, uneven mat density, or visible surface irregularities on the finished pass. Replacing the exciter motor with the correct OEM unit restores the drum's full dynamic force output and ensures the RD12 series roller performs to its rated specification.
Part Details
| Part Number | 5200001719 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exciter Motor |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD12A-90 ROLLER,DBL DRUM,GRN | RD12A-90 | 5000620369, 5000620058, 5000620320 |
| RD12-90 ROLLER, DOUBLE DRUM, SOLID ROPS | RD12-90 | 5000620059, 5000620321 |
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.
