The Wacker Neuson Piston is a genuine OEM component designed for the WP1550RW and WP1550R vibratory plate compactors as well as PT2R centrifugal trash pumps. As a direct OEM replacement, this piston is manufactured to the same specifications as the original part, ensuring a proper fit within the engine assembly. Verified fitment covers the WP1550RW and WP1550R 15 kN, 500mm vibratory plates and PT2R 50mm/2in trash pump models. Keep a genuine Wacker Neuson on hand to get equipment back up and running with confidence.
Key Features
- Genuine OEM Dimensional Accuracy — Machined to exact bore and crown geometry for correct compression and cylinder wall contact in the engine.
- Direct-Fit Replacement — Installs into the existing cylinder bore without modification, maintaining correct piston-to-wall clearance.
- Broad Model Coverage — Fits WP1550RW and WP1550R vibratory plate compactors and PT2R centrifugal trash pumps, making it a versatile service stock item.
- Restored Engine Output — A worn or scored piston causes compression loss, rough running, and reduced power; replacing it restores full engine performance across both machine families.
- Fuel System Integrity — Correct piston fit maintains proper combustion chamber sealing, supporting efficient fuel burn and preventing excessive oil consumption or blow-by.
The piston is the reciprocating component inside the engine cylinder that converts combustion pressure into mechanical force, driving the crankshaft and powering the machine. It works in close tolerance with the cylinder bore, piston rings, and connecting rod to maintain compression and transfer power efficiently. When a piston wears, cracks, or scores, compression drops, the engine loses power, runs roughly, or may fail to start — making timely replacement critical to keeping the engine operating at its designed output.
Part Details
| Part Number | 5000118031 |
|---|---|
| Old Part Number | 0118031 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Plate, 15 kN, 500mm/ 19.5in | WP1550RW | 5000007578 |
| Vibratory Plate, 15 kN, 500mm/ 19.5in | WP1550R | 5000007581 |
| 50mm/2in Centrifugal Trash Pum p | PT2R | 5000007160, 5000006790 |
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.
