The Wacker Neuson Pump Timer Module is a genuine OEM component designed for the RD12 and RD16 series tandem rollers, including RD12-90, RD12A-90, RD16-90, and RD16-100 configurations. This is a direct OEM replacement sourced through Wacker Neuson's authorized parts program, ensuring the module meets the original electrical and timing specifications the machine was built around. Compatible across both solid ROPS and foldable ROPS variants, part number covers a wide range of RD12 and RD16 production builds. If your tandem roller is showing erratic pump behavior or failing to maintain consistent hydrostatic drive response, this module is the place to start.
Key Features
- OEM Timing Accuracy — Manufactured to the original signal timing specifications, ensuring the pump control module delivers the correct output to the hydrostatic drive system.
- Direct Plug-In Replacement — Matches the original connector and mounting configuration on RD12 and RD16 series rollers, allowing for a straightforward swap during scheduled or unscheduled maintenance.
- Broad RD12/RD16 Fitment — Confirmed for RD12-90, RD12A-90, RD16-90, and RD16-100 tandem rollers across multiple production runs, including standard, IRH hydrostatic, and foldable ROPS variants.
- Consistent Drive System Response — A correctly functioning pump timer module keeps the hydrostatic drive operating smoothly and predictably; a failed or degraded module can cause hesitation, loss of drive, or erratic roller behavior on the mat.
- Electrical System Integrity — As a genuine OEM part, this module is validated for correct voltage handling and signal output, reducing the risk of secondary damage to pump control components downstream.
The pump timer module governs the timing and control signals sent to the hydrostatic pump on the tandem roller's drive system. It acts as the electronic brain between the operator's input and the pump's output, regulating when and how the pump responds during forward travel, reverse, and vibratory operation. When this module fails or degrades, operators typically notice sluggish or inconsistent drive response, unexpected stalling, or a complete loss of propulsion — all of which can bring compaction work to a halt and risk an uneven mat finish.
Part Details
| Part Number | 5200025089 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pump Timer Module, RD12/16 |
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 |
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.
