The Wacker Neuson Piston Ring Set is a genuine OEM component designed for the PT3V 75mm/3-inch centrifugal trash pump and the RS800V single drum vibratory roller. Sourced directly from Wacker Neuson, this piston ring set is manufactured to the exact tolerances required by the original engine specification — ensuring correct compression, oil control, and combustion sealing from the first start. Whether you're overhauling a pump engine on a job site or restoring full power to a compaction roller, part number delivers the confidence of a factory-correct rebuild.
Key Features
- OEM Compression and Oil Control Tolerancing — Manufactured to exact bore dimensions for proper ring seal and oil film control; no hand-fitting or gap adjustment needed.
- Direct Engine Rebuild Fit — Drops into the original piston grooves without modification, restoring the designed compression ratio and blow-by resistance of the engine.
- Broad Cross-Family Fitment — Compatible with both the PT3V centrifugal trash pump and the RS800V single drum vibratory roller, covering two distinct Wacker Neuson equipment families.
- Restores Lost Power and Compression — Worn or broken piston rings allow combustion gases to bypass the piston, causing hard starts, excessive oil consumption, and loss of output; a fresh OEM set brings performance back to spec.
- Fuel System Integrity — Correct ring seal maintains the combustion chamber pressure needed for efficient fuel burn, helping prevent rich running and carbon build-up on valves and plugs.
Piston rings form the dynamic seal between the piston and the cylinder wall, serving two critical functions: containing combustion pressure above the piston to drive the power stroke, and scraping excess oil from the cylinder wall to prevent it from entering the combustion chamber. When piston rings wear, crack, or lose tension, compression drops, oil consumption rises, and the engine produces noticeably less power — symptoms that typically worsen quickly if left unaddressed. Replacing the full ring set during an engine service is the correct way to restore bore seal and return the engine to its rated output, whether that engine drives a trash pump or a vibratory roller.
Part Details
| Part Number | 5000086866 |
|---|---|
| Old Part Number | 0086866 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 75mm/3in Centrifugal Trash Pum p | PT3V | 5000007171 |
| Single Drum Vibratory Roller | RS800V | 5000007187 |
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.
