The Wacker Neuson Control Piston Complete is a genuine OEM component designed for BPU and DPU series reversible vibratory plate compactors. This part serves a critical role in the hydraulic direction-control system, enabling the plate to switch between forward and reverse travel. It is a direct-fit replacement sourced from Wacker Neuson's authorized parts supply chain, ensuring correct form and function with no adaptation needed. Verified fitment spans a wide range of BPU and DPU models, including the BPU 3545A, BPU 4045A, BPU 5045A, BPU 5545A, DPU 4045H, DPU 5045H, DPU 6055, DPU 4545H, DPU 5545H, DPU 6555H, and their related variants.
Key Features
- Genuine OEM Hydraulic Precision — Manufactured to Wacker Neuson's original specification, ensuring correct piston geometry and seal compatibility for smooth, responsive direction control.
- Direct-Fit Replacement — Installs into the existing hydraulic control circuit without modification, matching the original mounting and porting of BPU and DPU vibratory plate compactors.
- Broad BPU and DPU Series Fitment — Compatible with a wide range of reversible vibratory plates across the BPU 3545A–5545A and DPU 4045H–6555Hec model lines, including US-spec variants.
- Restores Full Reversible Travel Function — A worn or stuck control piston causes loss of direction switching, leaving the plate unable to reverse. Replacing it restores full operator control and productive compaction passes.
- Hydraulic System Integrity — Correct piston fit prevents internal hydraulic bypass and pressure loss, protecting the exciter drive system from strain caused by misdirected or uncontrolled flow.
The control piston is the key hydraulic switching component inside the reversible vibratory plate's direction-control valve assembly. When the operator commands a direction change, the piston shifts position within the valve bore to redirect hydraulic flow to the exciter unit, reversing the plate's travel direction. If the piston wears, seizes, or develops internal bypass, the machine loses the ability to reverse reliably — reducing compaction coverage and forcing the operator to reposition the plate manually. Replacing a failed control piston restores the full hydraulic switching function that makes a reversible plate compactor productive in tight trench and confined-area applications.
Part Details
| Part Number | 5000203520 |
|---|---|
| Old Part Number | 0203520 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Control Piston Complete |
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 |
| V.Plate DPU 5045Heap | DPU 5045H | 5000610046, 5000610052, 5000610047, 5000007862, 5000007936, 5000007965, 5000610045 |
| V.Plate DPU 4045Hap | DPU 4045H | 5000610044, 5000610051, 5000610064, 5000007888, 5000007935, 5000610043 |
| V.Plate DPU 6055Heap | DPU 6055 | 5000610049, 5000610050, 5000008766, 5000008767, 5000008768, 5000610048 |
| DPU6055-VIBROPLATE | DPU 6055He | 5000610053 |
| vibration plate DPU 4045Y | DPU 4045Y | 5000610027 |
| DPU6055-VIBROPLATE | DPU 6055 WC | 5000610175 |
| V.Plate DPU 4045Ye | DPU 4045YE | 5000610181 |
| Vibratory Plate DPU 6555Heap | DPU 6555Heap | 5000610356 |
| DPU6555He-VIBROPLATE | DPU 6555He US | 5000610357 |
| Vibratory plate BPU 4045A | BPU 4045A | 5000610345 |
| BPU5545A-VIBROPLATE | BPU 5545A | 5000610346 |
| Vibratory Plate DPU 4045Ye | DPU 4045Ye | 5000610350 |
| Vibratory Plate DPU 6555He | DPU 6555He | 5000610354 |
| Vibratory Plate DPU 6555H | DPU 6555H | 5000610355 |
| DPU 5045He-VIBROPLATE | DPU 5045He US | 5000610367 |
| DPU5545He-VIBROPLATE | DPU 5545He US | 5000610402 |
| BPU4045A-VIBROPLATE | BPU 4045A US | 5000610403 |
| Vibratory Plate BPU 5545A US | BPU 5545A US | 5100000678 |
| Vibratory Plate DPU 4545He US | DPU 4545He US | 5100000679 |
| DPU4545He-VIBROPLATE | DPU 4545He | 5000610347 |
| Vibratory Plate DPU 4545H | DPU 4545H | 5000610348 |
| Vibratory Plate DPU 4545Hap | DPU 4545Hap | 5000610349 |
| Vibratory Plate DPU 5545He | DPU 5545He | 5000610351 |
| Vibratory Plate DPU 5545H | DPU 5545H | 5000610352 |
| Vibratory Plate DPU 5545Heap | DPU 5545Heap | 5000610353 |
| BPU3545A-VIBROPLATE | BPU 3545A US | 5000610362 |
| Vibratory Plate | DPU 6555Hec | 5100004060 |
| DPU6555Hec Reversible Vibratory Plate | DPU 6555Hec US | 5100004399 |
| Vibratory Plate | DPU 5545Hec | 5100005859 |
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.
