The Wacker Neuson Pump Assembly is a genuine OEM component designed for RD27-100 and RD27-120 hydrostatic vibratory rollers. As a direct factory replacement, this assembly is built to the same specifications as the original unit, ensuring correct integration with the machine's hydraulic drive system. This part covers multiple machine configurations across both the RD27-100 and RD27-120 series — always verify your machine number before ordering.
Key Features
- Genuine OEM Hydraulic Integrity — Sourced directly from Wacker Neuson, this pump assembly meets the exact flow rate and pressure tolerances required by the RD27 hydrostatic drive system.
- Drop-In Replacement — Engineered to match the original mounting configuration and port layout, allowing straightforward installation without custom adaptation.
- RD27 Series Compatibility — Confirmed fitment across RD27-100 and RD27-120 hydrostatic vibratory roller configurations; check your machine number against the fitment list to confirm your application.
- Sustained Drive Performance — A properly functioning pump assembly maintains consistent hydraulic pressure to the drive circuit, supporting smooth propulsion and full drum vibration output on the roller.
- Prevents Costly System Failures — A worn or failing pump assembly can cause loss of drive, erratic roller movement, and potential downstream damage to hydraulic motors and valves — replacing it promptly protects the broader hydraulic circuit.
The pump assembly is the heart of the hydrostatic drive system on the RD27 tandem roller. It converts mechanical engine power into hydraulic flow, which is then directed to the drive motors that propel the machine and power drum vibration. When this assembly begins to wear, operators typically notice sluggish travel, uneven vibration, or complete loss of drive — all of which bring compaction work to a halt and risk further damage to connected hydraulic components. Replacing the pump assembly with a genuine Wacker Neuson 5000161639 unit restores full hydraulic output and gets the roller back to productive asphalt and soil compaction work.
Part Details
| Part Number | 5000161639 |
|---|---|
| Old Part Number | 0161639 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pump Assembly |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620007, 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 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.
