The Wacker Neuson is a genuine OEM 0.25 Piston designed for the VP, WP, WPP, WPU, and AP series single-direction vibratory plate compactors. This factory-sourced component is built to the exact dimensional and material tolerances specified for these machines, covering a wide range of models including the VP1550A, VP2050A, WP1550A, WP2050A, WPP1550A, WPU1550A, AP1550A, AP1550AW, and WP1235A, among others. As a genuine Wacker Neuson part, the matches the original piston specification precisely, ensuring correct compression characteristics and long service life within the engine assembly. Verify your machine's model and serial number against the fitment list before ordering to confirm compatibility.
Key Features
- OEM-Matched Piston Tolerances — Manufactured to Wacker Neuson's exact bore diameter and ring-groove dimensions for the 0.25 oversize specification, ensuring proper compression seal against the cylinder wall.
- Genuine Wacker Neuson Component — Sourced directly from Wacker Neuson, this part carries the same material grade and dimensional spec as the unit installed at the factory.
- Broad VP/WP/WPP/WPU/AP Series Coverage — Fits an extensive range of single-direction vibratory plate models, including the VP1340A, VP1550A, VP2050A, WP1540A, WP1550A, WP2050A, WPP1540A, WPP1550A, WPU1550A, AP1550A, and AP1550AW families.
- Restores Full Compaction Output — A correctly fitted piston maintains the engine's compression ratio, allowing the exciter mechanism to deliver rated centrifugal force for effective soil and aggregate compaction. A worn or undersized piston leads to power loss and incomplete compaction passes.
- Direct Engine Rebuild Fit — Sized for oversize bore applications, this 0.25 piston installs as part of a standard engine rebuild procedure without additional machining beyond the specified bore.
The piston is a core reciprocating component inside the engine's cylinder bore. It converts combustion pressure into the downward force that drives the crankshaft, which in turn powers the vibratory exciter unit beneath the plate. When a piston wears beyond serviceable limits — or when the cylinder has been bored to a 0.25 oversize — the original-size piston can no longer maintain adequate compression, resulting in hard starting, loss of engine power, and reduced plate compaction performance. Fitting the correct oversize piston restores the compression seal and returns the engine to its rated output.
Part Details
| Part Number | 5000162633 |
|---|---|
| Old Part Number | 0162633 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | 0.25 Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| GV2500A | GV2500A | 5000009345, 5000009350 |
| VP1550AW VIBROPLATE | VP1550AW | 5000009028, 5000630055 |
| VP1340AW VIBROPLATE | VP1340AW | 5000009032, 5000630058 |
| VP1550A Single Direction Vibratory Plate | VP1550A | 5000009027, 5000630054 |
| VP2050A VIBROPLATE | VP2050A | 5000009087, 5000630062 |
| WPU1550A | WPU1550A | 5000630033 |
| WPU1550Aw | WPU1550Aw | 5000630034 |
| WPP 1550Aw | WPP1550Aw | 5000630030 |
| Single Direction Plates | AP1550AW | 5000009540 |
| WPP 1540A | WPP1540A | 5000630025 |
| WPP 1550A | WPP1550A | 5000630029 |
| WP 1540A | WP1540A | 5000630017 |
| WP 1550A | WP1550A | 5000630019 |
| WP 2050A | WP2050A | 5000630022 |
| WPP 1540Aw | WPP1540Aw | 5000630026 |
| Single Direction Plates | AP1550A | 5000009539 |
| VP2050AW VIBROPLATE | VP2050AW | 5000009510 |
| Single Direction Plates | WP1550Aw | 5000630112 |
| Single Direction Plate | WP2050Aw | 5000630115 |
| Single Direction Plates | WP1540Aw-L | 5000630123 |
| Reversible Plates | WPU 1550A-L | 5000630124 |
| Single Direction Plates | WP1550Aw-L | 5000630126 |
| Single Direction Plates | WP1540Aw | 5000630106 |
| Single Drum Vibratory Roller | RS600A | 5000630010 |
| Single direction vibratory plate VP1340A | VP1340A | 5000630057 |
| Single Direction Plates | WP2050Aw-L | 5000630125 |
| Single direction vibratory plate WP1235A | WP1235A | 5000630016 |
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.
