The Wacker Neuson Rings Oversize 0.25mm is a genuine OEM piston ring set designed for the DPU 4045YE reversible vibratory plate compactor. As a factory-sourced component, the is manufactured to the exact dimensional tolerances required for a proper oversize engine rebuild, ensuring correct cylinder wall sealing after a bore has been machined 0.25mm over standard. Correct fitment to the DPU 4045YE engine is confirmed, making this the right choice for operators and technicians performing a top-end engine overhaul on this machine.
Key Features
- Oversize Precision Tolerance: — Ground to an exact 0.25mm oversize specification, ensuring the correct ring-to-bore clearance after cylinder boring — critical for maintaining compression and oil control.
- Genuine OEM Sourcing: — Supplied directly through Wacker Neuson's parts program, so the ring profile, gap spacing, and material grade match the engine's original design requirements exactly.
- Direct Engine Rebuild Fit: — Designed to drop into a freshly bored cylinder on the DPU 4045YE without secondary modification, working with the existing piston and connecting rod assembly.
- Confirmed Fitment: — Compatible with the DPU 4045YE reversible vibratory plate compactor, a diesel-powered unit used for heavy-duty soil and aggregate compaction.
- Compression Restoration: — Worn or broken piston rings cause loss of compression, increased oil consumption, and poor engine performance; replacing with the correct oversize set restores full engine output and service life.
- Engine Integrity Compliance: — Using the correct oversize ring set is essential when rebuilding a bored engine — incorrect sizing can lead to blow-by, scoring, or premature failure of the rebuilt assembly.
Piston rings seal the gap between the piston and the cylinder wall, maintaining compression pressure in the combustion chamber while preventing engine oil from entering and burning in the combustion cycle. In a correctly functioning engine, the rings keep combustion gases from escaping past the piston and ensure oil is scraped back into the sump. When rings wear, break, or lose tension, symptoms include lost compression, excessive oil consumption, blue exhaust smoke, and reduced power output — all of which degrade the performance of the DPU 4045YE on the compaction site. An oversize ring set like the 5000155786 is used specifically when the cylinder bore has been machined to remove wear damage, restoring a fresh sealing surface that standard-size rings cannot adequately contact.
Part Details
| Part Number | 5000155786 |
|---|---|
| Old Part Number | 0155786 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Rings Oversize 0.25mm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| V.Plate DPU 4045Ye | DPU 4045YE | 5000610181 |
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.
