The Wacker Neuson is a genuine OEM Square Key 3/16 X 2.18 designed for the RS800 series single drum vibratory rollers. As a factory-sourced component, it is manufactured to the exact dimensions required for a proper fit within the drivetrain assembly. Confirmed fitment spans the RS800, RS800A, RS800H, RS800V, and RSS800A walk-behind roller models. When you need a dependable like-for-like replacement, part number delivers the precision this application demands.
Key Features
- Exact OEM Dimensions — Sourced directly from Wacker Neuson, this square key is manufactured to the precise 3/16 x 2.18 specification required for correct shaft-to-hub torque transfer with no material deviation.
- Direct Drivetrain Replacement — Installs into the same keyway seat as the original, restoring the positive mechanical connection between the shaft and mating component without reworking the keyway.
- Broad RS800 Series Compatibility — Fits RS800, RS800A, RS800H, RS800V, and RSS800A single drum vibratory roller configurations, covering the full walk-behind roller lineup in this family.
- Torque Integrity Restored — A worn or sheared square key allows the shaft and driven component to slip under load, causing uneven drum rotation and loss of compaction force; replacing it restores full power transmission.
- Drivetrain Safety — A failed key under operating load can cause sudden loss of drive engagement on a live roller; replacing a worn key before failure keeps the machine under controlled operation.
A square key is a small but critical drivetrain component that locks a rotating shaft to a hub, gear, or pulley, ensuring torque is transferred cleanly from one component to the other. Seated in matching keyway slots cut into both the shaft and the mating part, it prevents any rotational slippage under load. When a square key shears or wears, the shaft spins freely inside the hub, causing an immediate loss of drive to the affected component — on a single drum vibratory roller like the RS800 series, this can mean loss of drum rotation or vibration drive entirely.
Part Details
| Part Number | 5000080077 |
|---|---|
| Old Part Number | 0080077 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Square Key 3/16 X 2.18 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Vibratory Roller | RS800A | 5000006581, 5000630011 |
| Single Drum Vibratory Roller | RSS800A | 5000006582, 5000630012 |
| Single Drum Vibratory Roller | RS800H | 5000006583 |
| Single Drum Vibratory Roller ( without engine) | RS800 | 5000006585 |
| Single Drum Vibratory Roller | RS800V | 5000007187 |
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.
