The Wacker Neuson Radiator Cap For is a genuine OEM component designed for the RD27-100 and RD27-120 hydrostatic vibratory tandem rollers. As a direct-from-manufacturer part, matches the exact pressure rating and sealing profile specified for these machines, ensuring the cooling system operates as intended. This cap is confirmed to fit both the RD27-100 and RD27-120 roller configurations, making it a straightforward service replacement when your original cap is damaged, corroded, or no longer holding pressure.
Key Features
- OEM Pressure-Rated Seal: — Engineered to the exact pressure relief specification for the RD27 cooling system, maintaining proper coolant circulation and preventing over-pressurization.
- Direct Swap Installation: — Threads directly onto the radiator filler neck with no adaptation — seats and seals the same way as the original cap it replaces.
- Confirmed RD27 Fitment: — Verified for the RD27-100 and RD27-120 hydrostatic vibratory tandem rollers, cross-referencing OEM part 0163141.
- Cooling System Integrity: — A correctly functioning radiator cap holds system pressure and keeps coolant in the circuit; a failed cap leads to coolant loss, overheating, and potential engine damage during compaction operations.
- Genuine Wacker Neuson OEM Quality: — Sourced directly from Wacker Neuson, this part meets the material and dimensional standards used in original equipment production — no guesswork on fit or performance.
The radiator cap seals the cooling system and regulates the internal pressure that allows coolant to reach higher temperatures without boiling over. When pressure rises beyond the cap's rated threshold, a spring-loaded valve opens to release excess pressure safely, then reseals as the system cools. A worn or faulty cap that no longer holds its rated pressure can cause the coolant to boil off prematurely, leading to overheating and potential engine damage — symptoms that are easy to overlook until serious harm has already occurred.
Part Details
| Part Number | 5000163201 |
|---|---|
| Old Part Number | 0163201 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Radiator Cap For 0163141 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 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.
