The Wacker Neuson is a genuine OEM 0.50 Piston designed for a wide range of VP, WP, WPP, WPU, and AP series single-direction vibratory plate compactors. As a factory-sourced component, the is manufactured to the exact tolerances required by Wacker Neuson engines found across the VP1340A, VP1550A, VP2050A, WP1540A, WP1550A, WP2050A, WPP1540A, WPP1550A, WPU1550A, and AP1550A platform. Fitment also extends to the GV2500A generator and RS600A single-drum vibratory roller, making this an exceptionally versatile engine service part. Sourcing the correct oversized piston is critical to a proper engine rebuild — the ensures you get the right dimension the first time.
Key Features
- Genuine OEM Dimensional Accuracy — Cast and machined to the exact 0.50 oversize specification, ensuring correct bore-to-piston clearance during engine rebuild without guesswork.
- Direct Engine Rebuild Fit — Engineered to drop into the cylinder bore of compatible Wacker Neuson engines; pairs with correct rings and gaskets for a complete overhaul.
- Broad Platform Coverage — Confirmed fitment across VP, WP, WPP, WPU, and AP single-direction vibratory plate families, the GV2500A generator, and the RS600A roller.
- Restores Full Compression — A worn or scored piston causes loss of compression, hard starting, and reduced compaction force; installing a correctly sized replacement brings engine output back to specification.
- Backed by Wacker Neuson OEM Sourcing — Supplied as a genuine factory part, so material grade and ring-groove geometry match original production standards exactly.
The piston is the reciprocating heart of a four-stroke engine — it compresses the air-fuel mixture on the upstroke and transfers combustion energy to the crankshaft on the power stroke. Over time, the piston skirt and ring lands wear, causing blow-by, oil consumption, and a measurable drop in compression. An oversized piston like the 5000162638 is used after the cylinder bore has been honed or bored out to a larger diameter, restoring a tight, leak-free fit between the piston and cylinder wall. Skipping this step or using an incorrectly sized piston leads to recurring compression loss and premature engine failure.
Part Details
| Part Number | 5000162638 |
|---|---|
| Old Part Number | 0162638 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | 0.50 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.
