The Wacker Neuson Piston Ring Set is a genuine OEM component designed for a wide range of Wacker Neuson diaphragm pumps and vibratory plate compactors, including the PDT2, PDT3, PDI2, PDI3, PG2, VP1135R, VP50X, VP60X, and AP1135R series. As a factory-sourced part, the is manufactured to the same specifications as the original rings installed at production, ensuring a correct fit within the cylinder bore without guesswork or adaptation. This set covers an extensive equipment lineup, making it a practical stocking item for rental fleets and service departments running mixed Wacker Neuson equipment. Confirm your machine's model number against the fitment list before ordering to ensure compatibility.
Key Features
- OEM-Grade Ring Geometry — Manufactured to original bore diameter and ring gap tolerances, maintaining proper compression seal and oil control for the specific cylinder in which this set is installed.
- Cross-Family Fitment — A single part number covers PDT2, PDT3, PDI2, PDI3, and PG2 diaphragm and dewatering pumps as well as VP1135R, VP1135RW, VP50X, VP50Xw, VP60X, VP60Xw, and AP1135R vibratory plates.
- Drop-In Engine Rebuild Component — Rings index directly onto the existing piston grooves with no machining required, streamlining overhaul work during scheduled engine service or after compression loss is detected.
- Restores Compression and Power Output — Worn or broken rings allow combustion gases to bypass the piston, causing loss of power, increased fuel consumption, and oil contamination; a fresh ring set restores the compression necessary for full engine output.
- Genuine Wacker Neuson Part — Sourced directly through the Wacker Neuson OEM supply chain, so the part number, dimensions, and material grade match the original production specification exactly.
Piston rings seal the gap between the piston and the cylinder wall, performing two critical jobs: they contain combustion pressure above the piston to generate power, and they prevent engine oil from migrating up into the combustion chamber. Over time, rings wear, lose tension, or break, allowing compression to drop and oil to burn off — symptoms that show up as reduced power, excessive smoke, and high oil consumption. Replacing a worn ring set restores the cylinder's ability to build and hold compression, bringing engine performance back to spec and protecting the cylinder bore from further damage caused by metal-to-metal contact.
Part Details
| Part Number | 5000205121 |
|---|---|
| Old Part Number | 0205121 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 50mm/2in Diaphragm Trash Pump | PDT2 | 5000009494, 5000620770 |
| 75mm/3in Diaphragm Trash Pumps | PDT3 | 5000009495, 5000620774 |
| PG2 Dewatering Pump | PG2 | 5000009496, 5000009497 |
| Value Vibratory Plate, 11kN, 3 50mm/13.8in | VP1135R | 5000008709, 5000009071, 5000630061 |
| Value Vibratory Plate, 11 kN, 356mm/14in | VP1135RW | 5000009251, 5000009512 |
| Vibratory Soil Plate, 60 kN | VP60X | 5000009533 |
| Vibratory Soil Plate, 50 kN | VP50X | 5000009531 |
| VP50Xw-VIBROPLATE | VP50Xw | 5000630094 |
| VP60Xw-VIBROPLATE | VP60Xw | 5000630095 |
| Single Direction Plate | AP1135R | 5000009518 |
| Value Vibratory Plate, 11kN 356mm/14in | VP1135R-AU | 5000630102 |
| 50mm/2in Diaphragm Trash Pump | PDI2 | 5000009489 |
| 75mm/3in Diaphragm Trash Pump | PDI3 | 5000009491, 5000009492 |
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.
