The Wacker Neuson Splined Pump Shaft is a genuine OEM component designed for the RD7, RD12, RD12A, and RD16 series tandem rollers. As a direct factory replacement, this shaft meets the original engineering tolerances and spline geometry required to properly couple the hydraulic pump to the drive system. Fitment covers a wide range of RD-series configurations, including walk-behind and ride-on articulated models across both standard and foldable ROPS variants. Keeping the correct OEM shaft installed ensures the hydrostatic drive system delivers consistent drum performance on asphalt and soil compaction applications.
Key Features
- Exact Spline Geometry: — Machined to OEM spline count and profile so the shaft seats fully and transfers torque without slippage or backlash.
- Genuine Wacker Neuson OEM Part: — Sourced directly from Wacker Neuson, carrying the same material spec and heat treatment as the original shaft that left the factory.
- Broad RD-Series Compatibility: — Fits RD7, RD7H, RD12, RD12A, and RD16 tandem rollers across multiple machine numbers and ROPS configurations, including standard, foldable, and IRH hydrostatic variants.
- Maintains Hydrostatic Drive Integrity: — A worn or damaged pump shaft causes loss of hydraulic pressure, erratic drum speed, and compaction inconsistency; replacing with the correct OEM shaft restores full drive response.
- Direct-Fit Installation: — Drops into the existing pump mount without modification, matching the original shaft length and coupling interface for a straightforward service swap.
The splined pump shaft is the mechanical link between the engine or motor output and the hydraulic pump in the tandem roller's hydrostatic drive system. Its splines engage mating grooves inside the pump hub, transmitting rotational force that pressurizes hydraulic fluid and drives the drum motors. When the shaft wears, becomes twisted, or loses spline engagement, hydraulic output drops and the machine may exhibit sluggish movement, uneven drum rotation, or complete loss of drive — directly compromising compaction quality and site productivity.
Part Details
| Part Number | 5000161324 |
|---|---|
| Old Part Number | 0161324 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Splined Pump Shaft |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD16-90 Vibratory Roller | RD16-90 | 5000620060, 5000620127, 5000620799 |
| RD 16-100 | RD16-100 | 5000620402, 5000620798 |
| RD12A-90 ROLLER,DBL DRUM,GRN | RD12A-90 | 5000620369, 5000620058, 5000620320 |
| RD12-90 ROLLER, DOUBLE DRUM, SOLID ROPS | RD12-90 | 5000620059, 5000620321 |
| RD 7ES | RD7H-ES EU | 5000620794 |
| RD 7S | RD7H-S EU | 5000620795 |
| RD7H-ES Tandem Roller | RD7H-ES | 5000009408 |
| RD7H-S ROLLER,DOUBLE DRUM | RD7H-S | 5000009487 |
| Walk-behind Vibratory Roller ( no engine) | RD7-RAW | 5000620079, 5000620596, 5000620478 |
| Double Drum Vibratory Roller | RD7H | 5000008042 |
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.
