The Wacker Neuson Complete Alternator is a genuine OEM component designed for RD27-100 and RD27-120 hydrostatic vibratory rollers. Sourced directly from Wacker Neuson, this alternator meets the exact specifications of the original unit installed at the factory, ensuring a drop-in fit with no guesswork on compatibility. It is confirmed for use across multiple machine configurations within the RD27-100 and RD27-120 series, making it the straightforward choice when your roller needs an electrical charging system repair. Keep part number on hand for scheduled maintenance or unplanned service on your RD27 roller fleet.
Key Features
- Genuine OEM Charging Output: — Matched to the original voltage and amperage output spec for the RD27 roller's electrical system, so batteries charge correctly and onboard electronics receive stable power.
- Direct-Mount Replacement: — Engineered to the same bolt pattern and connector configuration as the original unit, allowing straightforward installation without bracket modifications or wiring adaptations.
- Confirmed RD27 Series Fitment: — Verified for RD27-100 and RD27-120 hydrostatic vibratory rollers across multiple machine configurations within both series.
- Protects the Full Electrical System: — A worn or failing alternator starves the battery and destabilizes voltage across the roller's control circuits; replacing it with a correctly rated unit restores proper system charging and prevents cascading electrical faults.
- Electrical Safety Compliance: — As a core charging system component, using a correctly rated OEM alternator helps maintain safe operating voltage levels and reduces the risk of overcharging or undercharging conditions that can damage the machine's electrical architecture.
The alternator is the primary source of electrical power while the roller's engine is running. It converts mechanical energy from the engine into AC current, which is then rectified to DC to charge the battery and supply the machine's electrical loads — including the control panel, lighting, and any hydraulic solenoids. When an alternator begins to fail, symptoms typically include a discharging battery, warning lights, and erratic behavior from electrically controlled systems. Left unaddressed, a failed alternator can leave the roller unable to start and may cause damage to other electrical components that rely on stable voltage.
Part Details
| Part Number | 5000161443 |
|---|---|
| Old Part Number | 0161443 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Complete Alternator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620007, 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 5000009469, 5000620038 |
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.
