The Wacker Neuson 5100012852 Gear Pump is a genuine OEM component designed for the RD24-100, RD27-120, and RD28-120 series tandem rollers. As a direct OEM replacement, the 5100012852 is manufactured to the same specifications as the original part, ensuring a correct, drop-in fit within the hydraulic system of your machine. This gear pump is confirmed compatible across a wide range of RD24-100, RD27-120, and RD28-120 variants, including C, O, and US configurations, covering both walk-behind and ride-on articulated tandem roller models in this family.
Key Features
- Genuine OEM Hydraulic Output Spec — Manufactured to original flow rate and pressure tolerances, ensuring the hydraulic system receives the exact volume and force required for consistent drum drive and vibration performance.
- Direct Bolt-In Replacement — Engineered to match the original mounting pattern and port configuration, allowing straightforward installation without adaptation or machining.
- Broad RD-Series Compatibility — Fits the full RD24-100, RD27-120, and RD28-120 tandem roller families, including C, O, and US-spec variants across multiple production series.
- Sustained Compaction Performance — A properly functioning gear pump maintains steady hydraulic pressure across both drums, keeping vibration amplitude and travel speed consistent on asphalt and soil compaction passes.
- OEM Part Traceability — Sourced and supplied as a genuine Wacker Neuson part under part number 5100012852, giving you confidence in fitment accuracy before the part ships.
A gear pump is the heart of the hydraulic circuit on a tandem roller. It converts mechanical power from the engine into pressurized hydraulic flow, which drives the drum motors, vibration system, and steering functions of the machine. When a gear pump wears or fails, the result is weak or erratic drum drive, loss of vibration, and reduced steering response — all of which directly compromise compaction quality and operator control. Keeping this component in good working order is essential for achieving consistent mat density on every pass.
Part Details
| Part Number | 5100012852 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gear Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
| RD27-120 O Tandem Roller | RD27-120 O | 5100011390 |
| RD24-100o | RD24-100o | 5100047378 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD24-100 | RD24-100 | 5100047374, 5100011385 |
| RD28-120 O Tandem Roller | RD28-120O US | 5100021800 |
| RD28-120o | RD28-120o | 5100047379 |
| RD24-100 O Tandem Roller | RD24-100 O | 5100011389 |
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD27-120o | RD27-120o.3 | 5100047373 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD27-120 Tandem Roller | RD27-120 | 5100011386 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| RD24-100c | RD24-100c | 5100047376 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD27-120 | RD 27-120.3 | 5100032198 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD28-120 Tandem Roller | RD28-120 US | 5100021756 |
| RD28-120 | RD28-120 | 5100047375 |
| RD28-120c | RD28-120c | 5100047377 |
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.
