The Wacker Neuson 5100012310 is a genuine OEM Oil Cooler designed for the RD18 series walk-behind tandem rollers, including the RD18-80, RD18-100, RD18-100c, and their regional and generation variants. Sourced directly from Wacker Neuson, this part meets the same specifications as the original component installed at the factory. It is a direct-fit replacement across a wide range of RD18 configurations, covering US, SE, and standard-market builds as well as third-generation models such as the RD18-80.3 and RD18-100.3.
Key Features
- Genuine OEM Thermal Performance — Manufactured to the exact heat-rejection capacity required by the RD18 series hydraulic system, ensuring oil temperatures stay within the operating range under continuous compaction loads.
- Drop-In Replacement — Matches the original mounting ports, inlet and outlet connections, and core dimensions of the factory-installed unit for a straightforward swap with standard tooling.
- Broad RD18 Series Coverage — Confirmed fitment across RD18-80, RD18-100, and RD18-100c variants, including US, SE, and third-generation (.3) builds in both standard and combination roller configurations.
- Protects Hydraulic Components — A correctly functioning oil cooler keeps hydraulic fluid viscosity stable, preventing premature wear to pumps, motors, and control valves that results from overheated fluid.
- Verified Part Number — Part number 5100012310 cross-references directly to Wacker Neuson's parts catalog for the RD18 family, reducing the risk of ordering errors on a machine with multiple regional build variants.
The oil cooler regulates the temperature of the hydraulic fluid circulating through the tandem roller's drive and vibration systems. During sustained operation — especially in warm conditions or on long paving passes — hydraulic fluid generates significant heat, and without effective cooling it degrades rapidly, losing viscosity and breaking down lubrication films inside pumps and motors. When the oil cooler becomes blocked, leaks, or fails, fluid temperatures climb beyond safe limits, leading to sluggish drum response, reduced vibration output, and accelerated wear across the entire hydraulic circuit. Replacing a failed or marginal oil cooler promptly restores full hydraulic efficiency and protects the downstream components that depend on properly conditioned fluid.
Part Details
| Part Number | 5100012310 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Cooler |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD18 | RD18-100.3 | 5100055947 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD18-100 | RD18-100 | 5100055775, 5100047361, 5100011383 |
| RD18-100c | RD18-100c | 5100055776, 5100047362 |
| RD18-80 | RD18-80 | 5100055774, 5100011382, 5100047360 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
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.
