The Wacker Neuson Exciter Assembly 1200Mm is a genuine OEM component designed for the RD27-120 tandem roller series. This factory-sourced assembly ensures the drum delivers the correct vibratory force and frequency needed for effective asphalt and soil compaction. It is confirmed to fit multiple RD27-120 machine configurations, including the RD27 Pro Tandem Roller, RD27 Tandem Roller, and RD27-120 Roller Basic and Pro T4F variants. Ordering by part number guarantees you receive the correct assembly for your specific machine configuration.
Key Features
- Genuine OEM Eccentric Mass Integrity — Manufactured to Wacker Neuson's original eccentric weight specification, ensuring the drum produces the designed centrifugal force output for consistent compaction results.
- Direct-Fit Drum Assembly — Engineered to bolt directly into the 1200mm drum housing of the RD27-120, aligning with existing mounting points and shaft interfaces without rework.
- Broad RD27-120 Series Coverage — Fits RD27-120 machines including the RD27 Pro Tandem Roller, RD27 Tandem Roller, RD27-120 Roller Basic T4F, and RD27-120 Roller Pro T4F configurations.
- Restored Compaction Performance — A worn or failed exciter assembly causes uneven vibration, loss of amplitude, and poor mat density; replacing it with 5000189406 restores full drum performance.
- Drivetrain Protection — A correctly balanced exciter assembly prevents abnormal bearing loads and drum shell fatigue, protecting surrounding drivetrain components from secondary wear.
The exciter assembly — also referred to as an eccentric or exciter assembly — is the core vibration-generating unit housed inside the roller drum. It consists of an eccentric shaft and weighted masses that rotate at high speed to produce centrifugal force, which is transmitted through the drum shell into the ground to achieve compaction. When the exciter assembly wears, develops bearing failure, or loses balance, the drum's vibratory output drops or becomes erratic, resulting in poor mat density, inconsistent compaction passes, and potential damage to adjacent drum components. Replacing the assembly with a genuine OEM part restores the drum to its designed amplitude and frequency, getting the RD27-120 back to full compaction capability.
Part Details
| Part Number | 5000189406 |
|---|---|
| Old Part Number | 0189406 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exciter Assembly 1200Mm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-120 | 5200005879, 5200014869, 5200014922, 5200014923, 5200023555, 5200023557, 5200024441, 5200005877, 5200021389 |
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.
Wacker Neuson
Wacker Neuson 5000189393 Exciter Eccentric Assembly 1000Mm
