The Wacker Neuson Woodruff Key is a genuine OEM component designed for the RD27-100 and RD27-120 series hydrostatic vibratory rollers, including standard and traction control configurations. As a direct OEM part, is manufactured to the exact specifications required for proper shaft-to-hub engagement in these machines. This key is a direct drop-in replacement, ensuring correct alignment and torque transfer without modification. Verified fitment covers all major RD27-100 and RD27-120 machine variants in the Wacker Neuson lineup.
Key Features
- Exact OEM Geometry — Manufactured to precise dimensional tolerances so the key seats fully in both the shaft and hub keyways, maintaining correct rotational alignment under load.
- Genuine Wacker Neuson Part — Sourced directly through the Wacker Neuson OEM supply chain, carrying part number 5000161129 for straightforward identification and reordering.
- Broad RD27 Series Coverage — Confirmed fitment across RD27-100 and RD27-120 hydrostatic vibratory rollers, including both standard and traction control variants.
- Positive Torque Transfer — A correctly fitted Woodruff Key locks the mating components in precise rotational phase, preventing slippage that can accelerate keyway wear and lead to shaft or hub damage.
- Low-Cost, High-Impact Repair — Replacing a worn or sheared key at the first sign of trouble protects far more expensive drive components from progressive damage.
A Woodruff Key is a small, semicircular drive key that fits into a curved slot machined into a shaft, with its flat face engaging a matching keyway in the mating hub or gear. Its job is to lock the two components together rotationally so that torque is transferred without slippage. On a hydrostatic vibratory roller like the RD27 series, Woodruff Keys are used at critical driveline interfaces where shafts connect to pulleys, sprockets, or other rotating assemblies. When a key shears or wears, the shaft can spin independently inside the hub, immediately interrupting power transfer and often damaging the keyway itself — turning a minor repair into a significantly more involved one.
Part Details
| Part Number | 5000161129 |
|---|---|
| Old Part Number | 0161129 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Woodruff Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620393, 5000620508, 5000620510, 5000620512, 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 5000620394, 5000620509, 5000620511, 5000620513, 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.
