The Wacker Neuson Oil Filler Cap is a genuine OEM component designed for the RD12-90 Double Drum Roller and CRT36-25 Ride-on Trowel series. Sourced directly from Wacker Neuson, this part meets the exact specifications of the original, ensuring a proper seal and correct fit every time. It is compatible across multiple RD12-90 and CRT36-25 configurations, including solid ROPS, foldable ROPS, and wheel kit variants. When you need a dependable, like-for-like replacement, part is the correct choice for keeping your equipment operating as intended.
Key Features
- OEM Seal Integrity — Manufactured to the original sealing specification, ensuring the cap forms an airtight closure that prevents oil contamination and loss.
- Direct Drop-In Replacement — Threads directly onto the original fill port with no modification to the housing or surrounding components.
- Broad Model Coverage — Fits multiple RD12-90 Tandem Roller variants and CRT36-25 Ride-on Trowel configurations, covering both ROPS and wheel kit equipped machines.
- Protects Engine and Drive Components — A correctly seating oil filler cap maintains proper crankcase pressure and keeps debris out of the oil system, preventing premature wear on internal components.
- Fuel and Fluid System Safety — A failed or missing filler cap can allow oil spray or vapor release near hot engine surfaces; replacing with a genuine OEM cap restores the original containment design.
The oil filler cap seals the engine or gearbox oil fill port, keeping the lubricant clean and the system properly closed during operation. A damaged, missing, or poorly seating cap allows dirt, water, and debris to enter the oil, accelerating internal wear and leading to costly damage over time. It also maintains the correct internal pressure balance in the crankcase — a function that is easy to overlook until oil consumption or leaks signal a problem.
Part Details
| Part Number | 5000215255 |
|---|---|
| Old Part Number | 0215255 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Filler Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD12-90 ROLLER, DOUBLE DRUM, SOLID ROPS | RD12-90 | 5000620059, 5000620321 |
| 915mm/36in Ride-on Trowel | CRT36-25 | 5000620115, 5000620295, 5000620803, 5000620804 |
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.
Wacker Neuson
Wacker Neuson 5000404142 Oil Filler Cap Complete (Yellow)
