The Wacker Neuson 5200017638 Alternator is a genuine OEM alternator designed for the RD27-100 and RD27-120 ride-on tandem roller series. Sourced directly from Wacker Neuson, this alternator matches the original component specification for a direct, bolt-in installation with no guesswork on fitment. It covers the full RD27 family, including Basic and Pro configurations across Tier 4 Final emissions variants. When your charging system needs attention, replacing it with the correct OEM part keeps your electrical system operating as the machine was engineered to perform.
Key Features
- OEM-Matched Output Rating — Wacker Neuson genuine OEM construction ensures the alternator delivers the correct voltage and amperage output to properly charge the battery and power onboard electrical systems on RD27 series rollers.
- Direct Bolt-In Installation — Engineered to the same mounting configuration and connector spec as the original unit, allowing straightforward swap-out without adapter brackets or wiring modifications.
- Broad RD27 Series Coverage — Confirmed fitment across RD27-100 and RD27-120 Hydrostatic Vibratory Roller, Ride-On Roller, Pro Tandem Roller, and Tandem Roller variants, including Basic and Pro T4F models.
- Sustained Electrical System Health — A properly functioning alternator continuously replenishes the battery under load; a failing unit leads to battery drain, instrument failure, and unexpected shutdowns during compaction passes.
- Genuine Part Assurance — As a genuine Wacker Neuson OEM component, part number 5200017638 is traceable through authorized Wacker Neuson supply channels, confirming you are receiving the part built for this machine.
The alternator is the primary charging source for the machine's electrical system. While the engine runs, the alternator converts mechanical energy into electrical energy to recharge the battery and supply power to controls, sensors, and lighting. On a ride-on tandem roller like the RD27 series, where reliable electrical operation directly affects compaction control, hydrostatic drive response, and operator instrumentation, a failing alternator can quickly cascade into broader system issues. When output drops below the required threshold, the battery begins discharging under normal operating loads, eventually causing erratic system behavior or a no-start condition.
Part Details
| Part Number | 5200017638 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Alternator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-120 | 5200014869, 5200014922, 5200005879, 5200014923, 5200024441, 5200023555, 5200023557, 5200005877, 5200021389 |
| Hydrostatic Vibratory Roller | RD27-100 | 5200005878, 5200014868, 5200023554, 5200023556, 5200021387, 5200005876 |
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.
