Wacker Neuson 5002006991 O-Ring

The Wacker Neuson is a genuine OEM O-Ring designed for BPU and DPU series reversible vibratory plate compactors, covering an extensive range of models including the BPU 3545A, BPU 4045A, BPU 5045A, BPU 5545A, DPU 4045, DPU 4545, DPU 5045, DPU 5545, DPU 6055, and DPU 6555 families. Sourced directly from Wacker Neuson, this genuine OEM part is manufactured to the exact material grade and dimensional tolerances of the original component, ensuring a proper seal every time. As a direct-replacement seal element, part installs in the same position as the factory original with no rework or adaptation to the mating surfaces. Whether you are servicing a gasoline-powered BPU or a diesel-powered DPU plate, this O-Ring keeps hydraulic or fluid circuits properly sealed and the compactor operating at full efficiency.

Key Features

• OEM-Grade Seal Material — Manufactured to the precise elastomer compound and compression rating specified by Wacker Neuson, maintaining a leak-free seal under the operating pressures and temperatures typical of BPU and DPU vibratory plate compactors.
• Drop-In Replacement — Dimensioned to match the original groove geometry exactly, so the O-Ring seats correctly against its mating surfaces without re-machining or shimming.
• Broad BPU and DPU Coverage — A single part number spans the BPU 3545A through BPU 5545A gasoline reversible plate range and the DPU 4045 through DPU 6555 diesel reversible plate range, streamlining parts inventory for mixed fleets.
• Preserves Hydraulic Circuit Integrity — A healthy O-Ring maintains proper fluid pressure within the exciter or hydraulic system; a cracked or flattened seal allows fluid loss that reduces centrifugal force output and compaction performance.
• Fluid-System Safety — An intact seal prevents hydraulic or fuel fluid from weeping onto hot engine components or the work surface, supporting safe machine operation on every shift.
• Genuine Wacker Neuson Part — Supplied as a genuine OEM component under part number 5002006991, confirming authenticity and traceability for service records.

An O-Ring is a precision loop seal, typically made from an elastomeric compound, that sits in a machined groove between two mating surfaces or around a shaft to prevent fluid or air from passing through the joint. In reversible vibratory plate compactors such as the BPU and DPU series, O-Rings are used throughout the hydraulic and fluid systems to maintain pressure and prevent leaks at fittings, housings, and valve bodies. When an O-Ring hardens, cracks, or is compressed beyond its service limit, the resulting leak can cause hydraulic pressure loss, reduced exciter output, contamination of surrounding components, or fluid intrusion into areas where it does not belong — all of which affect compaction quality and can escalate into more costly repairs 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.

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.