The Wacker Neuson Piston Ring Set is a genuine OEM component designed for the D4000 Diesel Power Unit for Internal Vibrator and the L5000/225 series in both ISO and ANSI configurations. Sourced directly from Wacker Neuson, this piston ring set meets the exact specifications of the original part installed at the factory. It is a direct replacement for the D4000, L5000/225 ISO, and L5000/225 ANSI — giving you confidence that is the right part before it ever ships.
Key Features
- OEM Ring Geometry and Material Grade — Manufactured to the precise radial thickness, gap tolerances, and ring material specified for Wacker Neuson engines, ensuring correct cylinder wall contact and seal integrity from the first start.
- Drop-In Replacement for the Original Set — Installs into the same ring grooves as the factory-fitted rings with no sizing or machining required, provided the cylinder bore is within service limits.
- Confirmed Fitment Across D4000 and L5000/225 Models — Verified for the D4000 Diesel Power Unit for Internal Vibrator and both the L5000/225 ISO and L5000/225 ANSI variants.
- Restores Compression and Oil Control — Worn piston rings allow combustion gases to blow past the piston and oil to migrate into the combustion chamber, robbing the engine of power and increasing oil consumption. A fresh set of rings brings compression back to spec and stops oil burning.
- Genuine Wacker Neuson Part — Carrying OEM part number 5000206140, this set is backed by Wacker Neuson's parts program and is traceable to the original engineering documentation for these machines.
Piston rings form the critical seal between the piston and the cylinder wall, controlling combustion pressure above the piston 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 scrapes excess oil back down the bore. When rings wear or lose tension, compression drops, the engine smokes, burns oil, and loses the power needed to drive vibrators or other attached equipment. Replacing the piston ring set at the correct service interval is one of the most effective ways to restore engine performance and extend the working life of the unit.
Part Details
| Part Number | 5000206140 |
|---|---|
| Old Part Number | 0206140 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Diesel Power Unit for Internal Vibrator | D4000 | 5000009091 |
| L5000/225 ISO | L5000/225 ISO | 5000610329 |
| L5000/225 ANSI | L5000/225 ANSI | 5000610341 |
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.
