The Wacker Neuson Water Pump is a genuine OEM component designed for the RD27-100 and RD27-120 hydrostatic vibratory roller series, including standard and traction control configurations. As a factory-sourced part, carries the same specifications as the original unit installed at the time of manufacture, ensuring a direct, verified replacement. This pump fits across a wide range of RD27 machine numbers, covering both the RD27-100 and RD27-120 model variants in production across multiple build runs.
Key Features
- Factory-Matched Flow and Pressure Specs — Engineered to the original OEM output ratings, ensuring consistent coolant circulation without over- or under-delivery that could stress the engine.
- Direct OEM Replacement for RD27 Series — Fits RD27-100 and RD27-120 rollers, including Hydrostatic Vibratory Roller and Hydrostatic Vibratory Roller with Traction Control variants, bolting into the existing mounting position without modification.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, carrying the same quality standards as the original component — not a generic approximation of the spec.
- Protects Engine Temperature Under Load — A correctly functioning water pump keeps coolant moving through the engine during sustained compaction passes; a failing pump leads to overheating, lost compaction cycles, and potential engine damage.
- Broad RD27 Production Coverage — Verified across multiple machine numbers spanning the RD27-100 and RD27-120 build series, making this the correct replacement for a wide range of roller vintages.
The water pump is responsible for circulating coolant through the engine's cooling system, drawing liquid from the radiator and pushing it around the engine block and cylinder head to carry away heat generated during operation. On a hydrostatic vibratory roller like the RD27 series, the engine works hard under continuous compaction loads, making reliable coolant flow critical to maintaining safe operating temperatures. When the water pump wears out — through bearing failure, seal leakage, or impeller erosion — coolant circulation drops, engine temperature climbs, and the machine will shut down or sustain damage if left unchecked.
Part Details
| Part Number | 5000161859 |
|---|---|
| Old Part Number | 0161859 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Water Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620393, 5000620508, 5000620510, 5000620512, 5000620395, 5200009322, 5000620007, 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 5000620394, 5000620509, 5000620511, 5000620513, 5000620396, 5200009323, 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.
