The Wacker Neuson 5100045421 Woodruff Key is a genuine OEM component designed for the Wacker Neuson Hydraulic System. As a direct OEM part, the 5100045421 is manufactured to the exact tolerances required to maintain a secure, properly aligned shaft-to-hub connection within the hydraulic drive assembly. Genuine OEM sourcing means this key matches the original specification without substitution or compromise. Verify your machine's hydraulic system part number against 5100045421 before ordering to confirm fitment.
Key Features
- Exact OEM Tolerancing — Manufactured to precise dimensional specs, ensuring the key seats fully in both shaft and hub keyways without play or rocking.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, this is the same Woodruff Key installed at the factory in the Hydraulic System assembly.
- Confirmed Hydraulic System Fitment — Verified for the Wacker Neuson Hydraulic System (Part No. 5100048262), making part selection straightforward and accurate.
- Secure Torque Transfer — A properly fitted Woodruff Key locks rotational alignment between shaft and gear or pulley, preserving full hydraulic drive efficiency and preventing slippage.
- Correct Material Hardness — OEM-grade steel construction resists shear forces and deformation under the cyclic loading typical of hydraulic system operation.
A Woodruff Key is a small, semi-circular metal key that fits into matching slots — called keyways — machined into both a rotating shaft and the hub of a gear, pulley, or sprocket. Its purpose is to lock those two components together rotationally so that torque is transferred evenly without slipping. In a hydraulic system, this connection is critical: if the Woodruff Key shears or works loose, the driven component can spin independently of the shaft, causing immediate loss of hydraulic drive function and potential damage to surrounding components. Replacing a worn or failed key with the correct OEM part restores that mechanical lock and gets the system operating as intended.
Part Details
| Part Number | 5100045421 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Woodruff Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydraulic System | Hydraulic System | 5100048262 |
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.
