The Wacker Neuson 5000161638 Hydraulic Motor is a genuine OEM component designed for the RD27-100 and RD27-120 hydrostatic vibratory rollers, including standard and traction control configurations. As a direct OEM part sourced through the Wacker Neuson supply chain, the part is built to the same specification as the original unit installed at the factory, ensuring correct porting, displacement, and shaft interface for a straightforward swap. This hydraulic motor covers an extensive range of RD27-100 and RD27-120 serial configurations, making it the correct choice for operators and service technicians working across multiple machine variants in this roller family.
Key Features
- OEM-Matched Displacement and Porting — Engineered to the original hydraulic circuit specification, ensuring correct flow rate and pressure handling within the RD27 drive system.
- Direct Bolt-In Replacement — Shaft dimensions, port locations, and mounting flange geometry match the original motor, allowing installation without modification to hydraulic lines or mounting hardware.
- Broad RD27 Series Coverage — Fits RD27-100 and RD27-120 hydrostatic vibratory rollers across standard and traction control variants, covering a wide range of serial number configurations.
- Sustained Drive Performance — A correctly functioning hydraulic motor delivers consistent torque to the drum drive, maintaining smooth forward and reverse travel on grade. A worn or seized motor causes loss of traction, erratic drum speed, and uneven compaction results.
- Genuine OEM Part — Supplied as an authentic Wacker Neuson component, part number 5000161638, meeting the same quality and dimensional standards as the original production unit.
The hydraulic motor on the RD27 tandem roller converts pressurized hydraulic fluid from the machine's hydrostatic circuit into rotational torque, driving the drum or propulsion system through the roller's travel range. It is a core component of the closed-loop hydrostatic drive, and its performance directly affects the machine's ability to maintain consistent drum speed, respond to grade changes, and deliver accurate compaction passes. When a hydraulic motor begins to wear internally, symptoms typically include reduced drive force, sluggish response, excessive heat buildup in the hydraulic circuit, and ultimately loss of drum or wheel movement — all of which compromise compaction quality and machine availability on the job.
Part Details
| Part Number | 5000161638 |
|---|---|
| Old Part Number | 0161638 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hydraulic Motor |
Compatibility & Fitment
| Name | Models | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller w / Traction Control | RD27-100 | 5000620508, 5000620393, 5000620512, 5000620510, 5200009322, 5000620395, 5000620037, 5000620007 |
| Hydrostatic Vibratory Roller w / Traction Control | RD27-120 | 5000620513, 5000620509, 5000620394, 5000620511, 5200009323, 5000620396, 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.
