Wacker Neuson 5100011642 Scavenge Valve

The Wacker Neuson Scavenge Valve is a genuine OEM scavenge valve designed for the RD24-100, RD27-120, RD28-120, RD40-130, and RD45-140 series tandem rollers. Sourced directly from Wacker Neuson, this part meets the exact specifications of the original component it replaces — no guesswork on fit or function. It covers an extensive range of configurations across standard, canopy, and open-ROPS variants, as well as DPF-equipped and generation.3 machines, making one of the most widely applicable scavenge valve references across the RD roller lineup.

Key Features

• Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's original pressure and flow tolerances, ensuring the valve seats and seals correctly within the hydraulic circuit without risk of internal bypass or leakage.
• Direct Drop-In Replacement — Matches the original port sizing, thread specification, and mounting configuration for straightforward installation on all covered RD series tandem rollers.
• Broad RD Series Coverage — Fits RD24-100, RD27-120, RD28-120, RD40-130, and RD45-140 Tandem Rollers across standard, canopy (C), open-ROPS (O), DPF, and generation .3 variants in both US and international specifications.
• Protects Hydraulic System Health — A properly functioning scavenge valve ensures oil is returned from the system at the correct pressure; a failed or worn valve can cause oil starvation, overheating, and accelerated wear across the hydraulic drive circuit.
• Verified Genuine Part — Part number 5100011642 is an authorized Wacker Neuson OEM reference, giving you confidence that you are installing the correct component the first time.

The scavenge valve is a critical component within the hydraulic system of a tandem roller, responsible for collecting low-pressure return oil — typically from the charge circuit or case drain — and directing it back to the reservoir or main circuit under controlled conditions. By maintaining correct back-pressure and preventing air ingestion, it protects the hydraulic pump and motor from cavitation and heat buildup. When the scavenge valve wears, sticks, or fails, operators may notice sluggish drum drive response, elevated hydraulic temperatures, or irregular compaction performance — all signs that the valve is no longer regulating flow as intended.

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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