The Wacker Neuson Woodruff Key is a genuine OEM component designed for the G40, G50, G60, G70, G95, and G110 series portable generators. As a direct OEM part, is manufactured to the same specification as the original, ensuring correct seating and shaft alignment right out of the box. This key fits an extensive range of Wacker Neuson GP generator configurations, including standard, mobile, 50Hz LATAM, Brazil Value, and Brazil Premium variants. Having the correct Woodruff Key on hand means your generator is back in service without the guesswork of chasing down a compatible substitute.
Key Features
- OEM Shaft-to-Hub Engagement: — Manufactured to the exact profile required for positive rotational lock between the shaft and driven component, preventing slippage under load.
- Drop-In Replacement: — Matches the original keyway dimensions on G-series generator shafts, so installation requires no filing, shimming, or recutting of the keyway.
- Broad G-Series Compatibility: — Confirmed fitment across G40, G50, G60, G70, G95, and G110 generator models, covering standard, mobile, 50Hz LATAM, and Brazil-market configurations.
- Protects Downstream Components: — A properly seated Woodruff Key prevents shaft and hub wear; a missing or sheared key can cause sudden loss of power output and rapid damage to mating parts.
- Genuine Wacker Neuson Part: — Sourced directly from Wacker Neuson, carrying the same part number 5200021429 used by authorized service centers worldwide.
A Woodruff Key is a small, semicircular metal key that locks a rotating component — such as a flywheel, pulley, or rotor — to a drive shaft, ensuring both parts turn together without slipping. It sits in a matching slot (keyway) machined into both the shaft and the hub of the driven component, transmitting torque reliably under continuous load. When a Woodruff Key shears or goes missing, the shaft and hub spin independently, resulting in a complete loss of power transmission and potential damage to the shaft keyway itself — a far more costly repair than simply replacing the key.
Part Details
| Part Number | 5200021429 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Woodruff Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator | G95 | 5200016642, 5200020677, 5100029186 |
| Mobile Generator | G60 | 5200015951, 5200016641, 5100029185 |
| G70 | G70 | 5200015952, 5100022041, 5100022040 |
| Generator | G40 | 5200015906, 5200015907, 5200016640, 5100029184 |
| Generator | G50 | 5200015909 |
| G110 Generator, Brazil, Value | G110 | 5100022042, 5100022043 |
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.
