The Wacker Neuson 5100031885 Key is a genuine OEM Key designed for the RD7Ye, RD7Yeh, RD7Yehf, RD7Yehfb, and RD10Yehf series walk-behind tandem rollers. As a direct OEM component sourced through Wacker Neuson's authorized parts program, the 5100031885 meets the same specifications as the key installed at the factory. This part fits across multiple RD7 and RD10 configurations, including LRC and HRC variants, making it a broadly compatible replacement for this roller family.
Key Features
- Genuine OEM Fit and Material Spec — Manufactured to exact dimensional tolerances required for proper shaft-to-component engagement in Wacker Neuson tandem rollers, ensuring correct torque transfer without slippage.
- Broad RD7 and RD10 Series Coverage — Confirmed fitment across RD7Ye, RD7Yeh, RD7Yehf, RD7Yehfb, and RD10Yehf configurations, spanning both LRC and HRC variants.
- Drop-In Installation — Installs directly into the existing keyway slot; no machining or modification to the shaft or mating component required.
- Protects Driven Components — A correctly fitted key prevents relative rotation between shaft and hub, protecting gears, pulleys, or drums from fretting damage caused by a worn or missing key.
- Verified Wacker Neuson Part Number — Part number 5100031885 cross-references directly to the listed RD-series machine configurations, giving you confidence before you order.
A key is a small, precision-machined locking component that sits in a machined slot — called a keyway — cut into both a rotating shaft and the hub of the component it drives, such as a drum, pulley, or gear. Its job is to lock those two parts together rotationally so that torque is transferred without slippage. When a key wears, shears, or goes missing, the shaft spins freely inside the hub, causing the driven component to lose power or stop responding entirely. On a walk-behind tandem roller like the RD7 or RD10 series, a failed key can result in loss of drum drive, directly affecting compaction output and machine control.
Part Details
| Part Number | 5100031885 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD7Ye Tandem Roller | RD7Ye | 5100027116, 5100027117, 5100038032, 5100048340 |
| RD7Yehf HRC | RD7Yehf HRC | 5100006337, 5100006341 |
| RD7Yeh LRC | RD7Yeh LRC | 5100006335 |
| RD7Yehfb LRC | RD7Yehfb LRC | 5100006345 |
| RD7Yeh HRC | RD7Yeh HRC | 5100006336, 5100006467 |
| RD10Yehf LRC | RD10Yehf LRC | 5100070502 |
| RD7Yehf LRC | RD7Yehf LRC | 5100006340 |
| RD7Yehfb HRC | RD7Yehfb HRC | 5100006346 |
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.
