The Wacker Neuson Square Key is a genuine OEM component designed for the RD27-100 and RD27-120 Hydrostatic Vibratory Rollers. As a factory-sourced part, it meets the exact material and dimensional standards specified for these machines, ensuring a correct fit in the drivetrain or hydraulic system assembly. This part is compatible across multiple machine configurations within the RD27 series, including both the RD27-100 and RD27-120 variants.
Key Features
- Genuine OEM Material Grade — Manufactured to the exact hardness and shear-strength tolerances required for a square key application in a vibratory roller drivetrain.
- Drop-In Fit for RD27 Series — Dimensioned to seat correctly into the keyway without filing or shimming, maintaining proper shaft-to-hub torque transfer from the moment of installation.
- Broad RD27 Series Coverage — Confirmed fitment across RD27-100 and RD27-120 Hydrostatic Vibratory Roller configurations.
- Maintains Positive Torque Lock — A correctly fitted square key keeps the mating shaft and hub rotating in unison; a worn or missing key causes slippage, vibration loss, and accelerated wear on both components.
- Drive System Integrity — In a vibratory roller, secure power transmission to the drum is critical for consistent compaction output; this key is a small part that plays a direct role in that function.
A square key is a small, precision-cut metal insert that fits into a machined slot — called a keyway — between a rotating shaft and a mating hub or gear. Its job is to lock these two components together so they rotate as one unit, transferring torque without slipping. In a hydrostatic vibratory roller like the RD27 series, this type of key is commonly found in drivetrain and drum-drive assemblies where reliable power transfer is essential to compaction performance. When a square key wears, shears, or goes missing, the connected components lose their positive drive connection, resulting in slippage, unusual vibration, or a complete loss of drum rotation.
Part Details
| Part Number | 5000162353 |
|---|---|
| Old Part Number | 0162353 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Square Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620007, 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 5000009469, 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.
