The Wacker Neuson Steering Pump Exciter is a genuine OEM component designed for the RD27-100 and RD27-120 tandem roller series. Sourced directly from Wacker Neuson, this part meets the exact specifications required for the hydrostatic steering and vibration systems found across the full RD27 family. It is compatible with RD27 Pro T4F, RD27 Basic T4F, and multiple serial-range variants of both the RD27-100 and RD27-120 machines. When your steering pump exciter is worn or failing, restoring it with a genuine OEM part ensures the roller performs as intended across asphalt and soil compaction applications.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's hydraulic system tolerances, ensuring correct pressure output and compatibility with the hydrostatic circuit in the RD27 tandem roller.
- Direct-Fit Replacement — Engineered to install in the same position and connect to the same hydraulic interfaces as the original, with no improvised adaptation needed.
- Broad RD27 Series Coverage — Verified fitment across RD27-100 and RD27-120 models including Pro T4F, Basic T4F, and Ride-On Roller configurations spanning multiple serial ranges.
- Sustained Steering and Vibration Function — A correctly functioning steering pump exciter maintains consistent hydraulic pressure for both articulated steering and drum vibration; a failed unit can cause erratic steering response or loss of compaction force.
- Hydraulic System Integrity — Using a genuine OEM exciter preserves the calibrated flow and pressure characteristics of the RD27's hydrostatic system, protecting downstream hydraulic components from stress caused by an out-of-spec unit.
The steering pump exciter on the RD27 tandem roller plays a central role in the machine's hydrostatic drive system, generating the hydraulic signal or flow that powers both the articulated steering circuit and the vibratory drum excitation. Without a properly functioning exciter, the roller may lose the precise steering control needed to follow paving lanes accurately, and drum vibration output can become inconsistent — directly affecting compaction quality. Replacing a worn or damaged exciter promptly restores full hydraulic function and keeps the RD27 performing to spec on asphalt and soil compaction work.
Part Details
| Part Number | 5200002436 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Steering Pump Exciter |
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.
