The Wacker Neuson Oil Water Cooler is a genuine OEM component designed for the RD18-80, RD18-100, and RD18-100c series double drum rollers. As a direct OEM replacement sourced through Wacker Neuson's authorized parts program, it meets the exact specifications of the original unit installed at the factory. This part fits across the full RD18 family, covering the RD18-80, RD18-100, RD18-100c, RD18-80.3, RD18-100.3, and RD18-100c.3 model variants. Keeping the cooling system in top condition is critical to protecting the hydraulic system and engine on these compact rollers — the ensures that function is fully restored.
Key Features
- OEM-Matched Cooling Capacity — Engineered to the same heat-exchange specification as the original, ensuring proper oil temperature regulation under continuous compaction loads.
- Direct Bolt-In Replacement — Matches the original mounting points, port sizing, and line connections on the RD18 series, so installation follows the standard service procedure without modification.
- Broad RD18 Series Coverage — Fits RD18-80, RD18-100, RD18-100c, RD18-80.3, RD18-100.3, and RD18-100c.3 variants under a single part number.
- Protects Hydraulic System Longevity — A functioning oil water cooler keeps hydraulic fluid within its safe operating temperature range, preventing accelerated seal wear, fluid breakdown, and pump damage.
- Genuine Wacker Neuson OEM Quality — Manufactured to Wacker Neuson's material and pressure-integrity standards, meaning internal passages, core construction, and fittings are built to last the service life of the machine.
The oil water cooler on the RD18 series rollers transfers heat from the hydraulic oil into the engine coolant circuit, keeping hydraulic fluid temperatures in check during sustained operation. Without effective cooling, hydraulic oil degrades rapidly, leading to loss of compaction force, sluggish drum response, and eventual damage to pumps and motors. A failed or bypassed cooler often presents as overheating warnings, reduced hydraulic performance, or discolored oil — replacing it promptly with a correct-spec unit like the 5100058633 restores full system integrity.
Part Details
| Part Number | 5100058633 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Water Cooler |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 | RD18-80 | 5100055774 |
| RD18-100 | RD18-100 | 5100055775 |
| RD18-100c | RD18-100c | 5100055776 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD18 | RD18-100.3 | 5100055947 |
| 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.
