Wacker Neuson 5100011841 Variable Displacement Pump Drive

The Wacker Neuson Variable Displacement Pump Drive is a genuine OEM component designed for the RD24-100 and RD27-120 tandem roller series, including C, O, DPF, and.3 generation variants, as well as the RD28-120 DPF series. As a direct OEM replacement, this part is manufactured to the same specification as the original, ensuring the hydraulic drive system on your roller performs exactly as intended. Coverage spans a wide range of Wacker Neuson double drum roller configurations, making it straightforward to confirm fitment across the RD24, RD27, and RD28 model families. When your drive pump is operating correctly, you get consistent propulsion response and smooth directional control — critical for tight compaction work on any site.

Key Features

• OEM-Matched Displacement Calibration — Built to the exact variable displacement specification of the original pump, so propulsion output and hydraulic response stay in spec across the full speed range.
• Direct-Mount Replacement — Engineered to install into the same hydraulic circuit and mounting position as the original, using existing connections and hardware without adaptation.
• Broad Tandem Roller Coverage — Fits RD24-100, RD27-120, and RD28-120 series rollers, including standard, C (combination), O (offset), DPF, and third-generation .3 variants.
• Sustained Drive Performance — A correctly functioning variable displacement pump delivers precise propulsion control and consistent drum speed; a worn or failing pump causes sluggish travel, uneven compaction passes, and loss of drive response.
• Genuine Wacker Neuson OEM Part — Sourced directly through the Wacker Neuson OEM supply chain, carrying part number 5100011841 for confident, accurate ordering.

A variable displacement pump drive controls the flow and pressure of hydraulic fluid delivered to the travel circuit of the roller, allowing the operator to vary machine speed and direction smoothly through the hydrostatic drive system. By adjusting its displacement in response to operator input, the pump regulates how much hydraulic energy reaches the drive motors, giving the machine precise, stepless speed control under load. When this pump wears or fails, symptoms typically include loss of propulsion power, erratic travel speed, difficulty holding position on a grade, and increased hydraulic heat — all of which compromise compaction quality and can lead to further drivetrain damage if left unaddressed.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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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.