The Wacker Neuson is a genuine OEM Alternator Pulley Grooved designed for the RD27-100 and RD27-120 hydrostatic vibratory rollers. As a direct OEM component, part is manufactured to the exact profile and dimensional specifications required for proper belt engagement on these tandem roller models. Sourced directly through the Wacker Neuson parts network, this pulley ensures the alternator drive system operates exactly as the machine was engineered to perform.
Key Features
- OEM-Matched Groove Profile — Pulley groove geometry matches the original drive belt spec, maintaining correct belt contact and reducing slip or premature belt wear.
- Direct-Fit Replacement — Engineered as an exact drop-in for the alternator assembly on RD27-100 and RD27-120 rollers; installs to the alternator shaft without modification.
- RD27 Series Compatibility — Confirmed fit for both the RD27-100 and RD27-120 hydrostatic vibratory roller configurations.
- Charging System Integrity — A correctly profiled alternator pulley keeps belt tension consistent, supporting stable electrical output and protecting the machine's charging circuit during continuous compaction work.
- Electrical Safety Assurance — A worn or mismatched pulley can cause belt slippage and intermittent charging faults; replacing with the correct OEM part eliminates this risk to the electrical system.
The alternator pulley is the interface between the engine's drive belt and the alternator, transferring rotational power to generate the electrical current that charges the machine's battery and powers its onboard systems. The grooved profile of this pulley is critical — it locks the belt in place during operation, ensuring consistent rotational transfer without slip. When the pulley wears, becomes damaged, or is replaced with an incorrectly profiled part, belt tracking suffers, charging output drops, and the alternator itself can be placed under undue load, leading to premature component failure.
Part Details
| Part Number | 5000161521 |
|---|---|
| Old Part Number | 0161521 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Alternator Pulley Grooved |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 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.
