The Wacker Neuson Engine/Pump Adapter is a genuine OEM component designed for the RD11A, RD11V, and RD11AEC hydrostatic double drum vibratory rollers. As a direct Wacker Neuson OEM part, the is manufactured to the same tolerances and material specifications as the original, ensuring a correct mechanical interface between the engine and hydraulic pump. This adapter is the right choice when restoring full drive system integrity on RD11-series tandem rollers used in asphalt and soil compaction applications.
Key Features
- OEM-Grade Dimensional Accuracy — Machined to exact bore and bolt-pattern specifications, ensuring proper torque transfer between the engine output shaft and hydraulic pump without slop or misalignment.
- Direct Bolt-On Replacement — Designed to mount in the same position as the original adapter, allowing straightforward installation without machining or custom fitting.
- Confirmed RD11 Series Fitment — Verified for the RD11A, RD11V, and RD11AEC hydrostatic double drum vibratory rollers — covering both standard and electric-start variants in the RD11 family.
- Maintains Hydraulic Drive Efficiency — A correctly fitted adapter keeps the engine and pump concentric and solidly coupled, preserving full hydraulic output and consistent drum drive performance on the compaction pass.
- Drivetrain Safety — A worn or failed engine/pump adapter can cause pump misalignment, vibration, and loss of hydrostatic drive control — replacing it with the correct OEM part restores safe, predictable machine operation.
The engine/pump adapter serves as the mechanical bridge between the roller's engine and its hydraulic pump, transmitting rotational force from the engine output to drive the hydrostatic system that powers drum rotation and propulsion. On the RD11-series tandem rollers, this coupling is critical to maintaining consistent hydraulic pressure across both drums during compaction. When the adapter wears, cracks, or fails, the result is vibration, loss of drive power, or complete pump disengagement — all of which bring compaction work to a halt and can lead to secondary damage in the hydraulic system.
Part Details
| Part Number | 5000111571 |
|---|---|
| Old Part Number | 0111571 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Engine/Pump Adapter |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Double Drum Vibrat ory Roller | RD11AEC | 5000007695 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11V | 5000007694 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11A | 5000007693 |
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.
