The Wacker Neuson 5100044030 is a genuine OEM Solenoid Coil designed for the RD12A-90 tandem roller series. Sourced directly from Wacker Neuson, this coil meets the exact electrical specifications required to keep hydraulic and fuel control circuits operating as intended on your machine. It fits the RD12A-90 Double Drum, standard Tandem Roller, and Tandem Roller with Foldable ROPS configurations. When a solenoid coil fails, it can leave your roller unable to respond to operator commands — getting the correct OEM replacement back on the machine is the fastest path to restoring full control.
Key Features
- OEM-Matched Electrical Output — Wound to the exact resistance and voltage rating specified by Wacker Neuson, ensuring the coil energizes the solenoid valve consistently and without voltage drop issues.
- Direct Drop-In Replacement — Engineered to the same mounting profile and connector configuration as the original, so installation is straightforward without adapter hardware.
- RD12A-90 Series Compatibility — Confirmed fit across RD12A-90 Double Drum, standard Tandem Roller, and Tandem Roller with Foldable ROPS variants.
- Restored Hydraulic or Fuel Circuit Response — A correctly functioning solenoid coil ensures the valve actuates fully and on demand, maintaining smooth, consistent machine control during compaction passes.
- Electrical Safety and Circuit Integrity — An out-of-spec or failed coil can cause intermittent valve behavior or uncontrolled circuit states; using the correct OEM coil protects both operator and machine.
A solenoid coil is an electromagnetic winding that, when energized by the machine's electrical system, creates a magnetic field to open or close a solenoid valve. On a tandem roller like the RD12A-90, these valves control critical hydraulic or fuel functions — such as propulsion, vibration engagement, or engine shutdown circuits. When the coil burns out, loses continuity, or develops a short, the valve it controls becomes unresponsive, which can result in a machine that won't propel, won't vibrate, or won't shut down cleanly. Replacing a failed coil with the correct OEM part restores proper circuit function and gets the roller back to work.
Part Details
| Part Number | 5100044030 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Solenoid Coil |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD12A-90 ROLLER,DBL DRUM,GRN | RD12A-90 | 5000620369, 5000620058, 5000620320 |
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.
