The Wacker Neuson Oil Ring Set is a genuine OEM component designed for ML440 Light Towers and MG5 series Portable Generators. As a direct Wacker Neuson OEM part, it is manufactured to the same tolerances and material specifications as the original rings installed at the factory, ensuring a proper fit in the engine bore without alteration or adjustment. This ring set is confirmed compatible across multiple ML440 and MG5 model configurations, making it the correct choice for scheduled rebuilds or unplanned engine repairs on these machines.
Key Features
- OEM-Grade Ring Sealing Material — Manufactured to the exact compression and oil-control profiles required by the engine, maintaining proper cylinder wall contact and minimizing oil consumption.
- Drop-In Bore Fitment — Engineered to the original piston groove dimensions for straightforward installation during engine overhaul without machining or shimming.
- Broad Model Coverage — Fits ML440 Light Tower variants and the full MG5 Portable Generator series, including MG5sd and MG5d configurations, covering a wide range of Wacker Neuson serial number ranges.
- Restored Oil Control Performance — A worn oil ring set allows oil to bypass into the combustion chamber, causing smoke, fouled plugs, and accelerated wear; replacing with this OEM set restores proper oil management and engine efficiency.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, part number 5000404862 carries full OEM provenance, ensuring the part you receive matches the original equipment specification exactly.
Oil rings are one of three piston ring types and are responsible for scraping excess oil from the cylinder wall and returning it to the sump during each piston stroke. When oil rings wear or become stuck in their grooves due to carbon buildup, oil is drawn into the combustion chamber, increasing consumption, producing blue exhaust smoke, and contaminating the combustion process. Replacing a worn oil ring set restores the correct oil film on the cylinder wall, protects the bore from dry running, and brings engine performance back to its intended operating condition.
Part Details
| Part Number | 5000404862 |
|---|---|
| Old Part Number | 0404862 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Light Towers | ML440 | 5000630117, 5000630204, 5000630323, 5000630324, 5000630325, 5000630327 |
| Portable Generators | MG5 | 5000630137, 5000630143, 5000630233, 5000630254, 5000630224, 5000630229, 5000630237, 5000630239, 5000630252, 5000630308, 5000630310 |
| Portable Generators | MG5sd | 5000630202, 5000630214, 5000630236 |
| MG5 Generator | MG5d | 5000630211 |
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.
