Wacker Neuson 5100009849 Overflow Bottle

The Wacker Neuson 5100009849 Overflow Bottle is a genuine OEM component designed for the DPU80, DPU90, and DPU110 series reversible vibratory plate compactors. As a direct Wacker Neuson OEM part, the 5100009849 is manufactured to the same standards as the original, ensuring a correct fit within the cooling system on these heavy-duty diesel-powered plates. Fitment spans a wide range of DPU configurations including Lec, Lem, Lekc, and rLec variants across standard and US-spec models. When your original overflow bottle cracks, leaks, or degrades, replacing it promptly with part 5100009849 protects the engine from coolant loss and overheating.

Key Features

• Genuine OEM Construction — Molded to the original Wacker Neuson specification, with correct volume capacity and connection geometry for the DPU series cooling circuit.
• Drop-In Replacement — Mounts directly to the existing bracket and connects to the OEM coolant hose routing with no modification to the cooling system.
• Broad DPU Series Fitment — Compatible with DPU80, DPU80r, DPU90, DPU90r, DPU110, and DPU110r configurations including Lec, Lem, Lekc, and US-spec variants.
• Coolant System Integrity — A sound overflow bottle maintains proper coolant expansion volume, preventing pressure buildup and protecting the engine under sustained compaction loads.
• Prevents Costly Engine Damage — A cracked or failed overflow bottle allows coolant to escape unchecked; replacing it early avoids overheating events that can damage the engine head or cooling system components.

The overflow bottle — also called a coolant expansion or recovery tank — stores excess coolant that expands as the engine heats up during operation. As the engine cools down, the system draws that coolant back in, maintaining the correct fluid level in the cooling circuit at all times. On DPU series reversible plate compactors that run hard in demanding soil and aggregate compaction applications, a compromised overflow bottle disrupts this cycle, causing the coolant level to drop, coolant to spill onto the machine, and the engine to run hot — accelerating wear or triggering a shutdown.

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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