The Wacker Neuson Piston Ring Set is a genuine OEM component designed for CT30ADT walk-behind trowels and PDT2A, PDI2A, PDT3A, and PDI3A series power trowels and rammers. As a factory-sourced part, this ring set is manufactured to the exact tolerances and material grades specified by Wacker Neuson, ensuring a correct fit within the engine bore without guesswork or adaptation. Engineered to restore proper compression and oil control, the is a direct-replacement solution for machines showing signs of ring wear, oil consumption, or loss of power. Confirm your model number before ordering — this set covers multiple CT30ADT and PDI/PDT configurations.
Key Features
- OEM Compression and Oil-Control Tolerancing — Manufactured to Wacker Neuson's exact ring gap and thickness specifications, ensuring optimal sealing performance within the cylinder bore.
- Drop-In Engine Replacement — Designed to seat correctly in the original piston grooves without machining or fitment adjustment on compatible engines.
- Broad Model Coverage — Fits CT30ADT walk-behind trowels (762mm/30in) and PDT2A, PDI2A, PDT3A, PDI3A, and PDI2A(I)/PDI3A(I) series machines.
- Restored Engine Compression — Worn piston rings allow combustion gases to bypass the piston, robbing the engine of power and increasing oil consumption; a fresh ring set brings compression back to operating spec.
- Genuine OEM Part — Sourced directly from Wacker Neuson, this ring set carries the same part number and material specification as the rings installed at the factory.
Piston rings form a dynamic seal between the piston and the cylinder wall, keeping combustion pressure above the piston where it belongs while preventing engine oil from entering the combustion chamber. There are typically multiple rings per piston — compression rings that hold cylinder pressure and an oil control ring that regulates the thin film of lubricant on the cylinder wall. When rings wear, score, or lose tension, the engine loses compression, burns oil, produces blue exhaust smoke, and runs rough or underperforms — symptoms that worsen quickly if left unaddressed. Replacing the ring set during an engine rebuild or overhaul restores the seal and gets the engine back to full working output.
Part Details
| Part Number | 5100028594 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 762mm/30in CE Walk-behind Trow el | CT30ADT-E | 5000007587, 5000008002 |
| 762mm/30in Walk-behind Trowel | CT30ADT | 5000008001, 5000008197 |
| PDT2A | PDT2A | 5000620769 |
| PDI2A(I) | PDI2A(I) | 5000620772 |
| PDT3A | PDT3A | 5000620773 |
| PDI3A | PDI3A | 5000620775 |
| PDI3A(I) | PDI3A(I) | 5000620776 |
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.
