Wacker Neuson 5000048854 Rotary Shaft Seal

The Wacker Neuson is a genuine OEM Rotary Shaft Seal designed for the BPU and DPU series reversible vibratory plate compactors. This seal is a direct-fit replacement sourced from Wacker Neuson's authorized parts program, ensuring it meets the exact dimensional and material specifications of the original component. The covers an extensive range of BPU and DPU models — including the BPU 3545A, BPU 4045A, BPU 5045A, BPU 5545A, DPU 4045H, DPU 4045Y, DPU 4545H, DPU 5045H, DPU 5545H, DPU 6055, DPU 6555H, and DPU 7060 series — making it a widely applicable seal for fleet operators and service technicians alike. Verify your machine's model and serial number against the fitment list before ordering to confirm compatibility.

Key Features

• Genuine OEM Sealing Performance — Manufactured to Wacker Neuson's original material and dimensional specification, delivering the lip geometry and elastomer grade required to contain exciter housing oil under the dynamic load of vibratory compaction.
• Direct Drop-In Installation — Matches the original shaft diameter, housing bore, and seal depth of BPU and DPU exciter housings, allowing straightforward installation during routine service without machining or adaptation.
• Broad BPU and DPU Fitment — A single part number covers gasoline BPU models (3545A, 4045A, 5045A, 5545A) and diesel DPU models across the 4045, 4545, 5045, 5545, 6055, 6555, and 7060 series, simplifying parts stocking for mixed fleets.
• Protects the Exciter Drive Train — A properly seated rotary shaft seal keeps exciter oil in and contaminants out; a worn or leaking seal accelerates bearing wear and can lead to exciter mechanism failure, taking the plate out of service.
• Fluid Containment Integrity — Correct sealing is essential on diesel and gasoline reversible plates where exciter oil loss can go unnoticed during operation; using a correctly rated OEM seal reduces the risk of undetected lubricant depletion.

The rotary shaft seal sits at the point where the exciter shaft exits the exciter housing on a reversible vibratory plate compactor. Its job is to retain the lubricating oil inside the exciter mechanism while preventing dirt, water, and debris from entering along the rotating shaft. When the seal degrades — through age, heat cycling, or contamination — it begins to weep or leak oil, starving the exciter bearings of lubrication and allowing abrasive particles to work their way inside. Left unaddressed, a failed shaft seal can cause rapid bearing failure and costly exciter assembly damage, so replacing a worn seal promptly is one of the most cost-effective preventive maintenance steps on any BPU or DPU compactor.

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.