The Wacker Neuson Engine Pump Adapter is a genuine OEM component designed for the RD12A-90 tandem roller series. As a direct OEM replacement, this adapter is sourced from Wacker Neuson and built to the same specifications as the original part installed at the factory. It is confirmed to fit the RD12A-90 double-drum, standard, and Foldable ROPS roller configurations. Keeping this connection point in sound condition is essential to maintaining proper power transfer and hydraulic pump operation on your roller.
Key Features
- Genuine OEM Integrity — Sourced directly from Wacker Neuson, this adapter meets the original design tolerances required for correct engine-to-pump alignment and load transfer.
- Direct-Fit Installation — Engineered to mount exactly as the original, connecting directly between the engine output and hydraulic pump without modification to the drive interface.
- RD12A-90 Series Compatibility — Verified fitment across RD12A-90 double-drum, standard tandem, and Foldable ROPS roller variants built on machine series 5000620369, 5000620058, and 5000620320.
- Sustained Drive System Performance — A correctly functioning adapter maintains consistent torque coupling between the engine and pump, ensuring the hydraulic system receives full, uninterrupted power for drum drive and compaction output.
- Protects Downstream Components — A worn or failed adapter can introduce misalignment and vibration into the drivetrain, accelerating wear on both the engine output flange and the hydraulic pump input shaft.
The Engine Pump Adapter serves as the mechanical bridge between the engine's power output and the hydraulic pump on the RD12A-90 tandem roller. It transfers rotational force from the engine to drive the pump, which in turn powers the drum propulsion and compaction systems. When this adapter cracks, wears, or fails, the hydraulic pump loses its driven connection, resulting in loss of drum movement and compaction function — bringing work to a halt until the adapter is replaced.
Part Details
| Part Number | 5000163408 |
|---|---|
| Old Part Number | 0163408 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Engine Pump Adapter |
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.
