The Wacker Neuson is a genuine OEM Centrifugal Weight designed for the BPU 3545A, BPU 4045A, BPU 5045A, and BPU 5545A series reversible vibratory plate compactors, including US-market variants. Sourced directly from Wacker Neuson, this centrifugal weight is manufactured to the exact mass and dimensional tolerances required to deliver consistent excitation force and compaction output. It is a direct-fit replacement for all listed BPU models, slotting into the existing eccentric shaft assembly without modification. If your reversible plate is producing uneven compaction, excessive vibration, or reduced output force, a worn or failed centrifugal weight is a common cause — and is the correct OEM part to restore full performance.
Key Features
- Exact Mass Tolerance: — Manufactured to OEM-specified weight and balance requirements, ensuring the eccentric shaft generates the correct compaction force for your BPU model.
- Direct Eccentric Shaft Fit: — Engineered to mount directly onto the existing eccentric shaft assembly across all listed BPU 3545A, BPU 4045A, BPU 5045A, and BPU 5545A models.
- Broad BPU Series Compatibility: — Fits the full BPU 3545A, BPU 4045A, BPU 5045A, and BPU 5545A lineup, including domestic and US-market configurations.
- Restores Full Compaction Output: — A correctly weighted eccentric assembly produces consistent vibratory force, allowing the plate to compact soil and aggregate to depth rather than just agitating the surface.
- Genuine Wacker Neuson OEM Part: — Part number 5000125878 is an authentic Wacker Neuson component, built to the same specification as the original part installed at the factory.
The centrifugal weight is a precision-balanced mass mounted on the eccentric shaft inside a vibratory plate compactor's exciter housing. As the shaft spins, the offset weight generates the centrifugal force that drives the plate's vibration — and it is this vibration that transmits compaction energy down into the soil or aggregate. The heavier and more precisely balanced the weight, the more consistent and powerful the compaction force. When a centrifugal weight wears, cracks, or loses mass, the plate's output force drops, compaction depth suffers, and the machine may develop irregular vibration or unusual noise. Replacing a worn centrifugal weight with the correct OEM part restores the exciter to its rated output and brings compaction performance back to specification.
Part Details
| Part Number | 5000125878 |
|---|---|
| Old Part Number | 0125878 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Centrifugal Weight |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Reversible Vibratory Plate, 50 kN, 45cm/18in | BPU 5045A | 5000008545 |
| Reversible Vibratory Plate, 35 kN, 45cm/18in | BPU 3545A | 5000008783 |
| BPU 4045A US | BPU 4045A US | 5100009663, 5000610403 |
| Vibratory plate BPU 4045A | BPU 4045A | 5000610345 |
| BPU5545A-VIBROPLATE | BPU 5545A | 5000610346 |
| Vibratory Plate BPU 5545A US | BPU 5545A US | 5100000678 |
| BPU3545A-VIBROPLATE | BPU 3545A US | 5000610362 |
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.
