The Wacker Neuson Exciter Motor Mount is a genuine OEM component designed for the RD27-100 and RD27-120 tandem roller series. Sourced directly from Wacker Neuson, this mount delivers the exact fit and material specification required to properly secure the exciter motor within the drum assembly. It is confirmed compatible across multiple RD27 configurations, including Pro and Basic Tier 4 Final variants. Keep your RD27 series roller running at full compaction output with a direct OEM replacement that installs exactly as the original.
Key Features
- Genuine OEM Construction: — Manufactured to Wacker Neuson's original material and dimensional specifications, ensuring correct load-bearing capacity for exciter motor mounting in a high-vibration environment.
- Direct-Fit Installation: — Matches the original mounting interface on the drum assembly, allowing the exciter motor to bolt into position without rework or modification to surrounding hardware.
- Broad RD27 Series Coverage: — Fits RD27-100 and RD27-120 tandem rollers across Pro, Basic, and standard configurations, including Tier 4 Final emission-compliant models.
- Protects Compaction Consistency: — A secure, correctly seated exciter motor mount maintains the drum's vibration frequency and amplitude. A worn or failed mount allows motor movement that disrupts compaction force and accelerates wear on surrounding components.
- Built for High-Vibration Duty: — Engineered to absorb and distribute the continuous dynamic loads generated during asphalt and soil compaction passes, extending the service life of the motor mounting system.
The exciter motor mount is the structural connection point between the exciter motor and the drum housing on a tandem vibratory roller. It holds the motor in precise alignment so that rotational force is converted efficiently into the vibration needed to achieve proper compaction density. When this mount deteriorates, cracks, or loosens, the exciter motor shifts position, causing uneven vibration output, audible rattling during operation, and potential damage to the motor shaft or drum bearings. Replacing a worn mount promptly restores consistent drum vibration and prevents secondary damage to more costly drivetrain components.
Part Details
| Part Number | 5000189421 |
|---|---|
| Old Part Number | 0189421 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exciter Motor Mount |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5200005878, 5200014868, 5200023554, 5200023556, 5200005876, 5200021387 |
| 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.
