The Wacker Neuson is a genuine OEM Piston Ring Oversize 0.25 designed for VP and AP series single-direction vibratory plate compactors. This oversize ring is engineered to restore proper cylinder-to-piston clearance during engine rebuilds on machines where the cylinder bore has been honed or bored 0.25 mm beyond the standard dimension. Verified fitment covers the VP1340R, VP1340RW, VP1550R, VP1550RW, VP2050R, VP2050RW, and AP1550R — a broad spread of Wacker Neuson's Value Vibratory Plate lineup used across soil prep, aggregate base work, and asphalt compaction. Sourcing a genuine OEM ring ensures the dimensional tolerances, ring gap, and material composition match the original engine specification exactly.
Key Features
- OEM-Matched Ring Dimensions — Cast and ground to the exact 0.25 mm oversize specification, ensuring correct ring gap and radial wall thickness for proper cylinder seal after a bore job.
- Direct Engine Rebuild Fit — Drops into a correctly honed 0.25 mm oversize bore without additional sizing or modification to the ring lands.
- Broad VP and AP Series Coverage — Confirmed fitment across VP1340R, VP1340RW, VP1550R, VP1550RW, VP2050R, VP2050RW, and AP1550R vibratory plate compactors.
- Compression and Oil Control Restored — A correctly sized piston ring seals combustion gases and manages oil film on the cylinder wall, restoring full power output and preventing excessive oil consumption after engine wear.
- Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, carrying part number 5000158406, so you can be confident it meets the same standards as the ring that left the factory.
A piston ring seals the combustion chamber between the piston and the cylinder wall, maintaining compression and controlling the thin film of oil that lubricates the bore. In a worn engine, ring gap increases and the seal degrades — resulting in lost compression, reduced power, increased oil burn, and eventual engine failure. An oversize ring like the 5000158406 is used when the cylinder has been bored or honed beyond standard diameter to remove wear taper and scoring; the larger ring fills the extra clearance and restores the tight seal needed for full engine performance. Using the correct oversize dimension is critical — even a small mismatch in ring gap will prevent a proper rebuild from holding compression.
Part Details
| Part Number | 5000158406 |
|---|---|
| Old Part Number | 0158406 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Oversize 0.25 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Value Vibratory Plate, 13 kN, 400mm/15.5in | VP1340RW | 5000009034 |
| Value Vibratory Plate, 15 kN, 500mm/19.5in | VP1550RW | 5000009030 |
| Single Direction Plates | AP1550R | 5000009538 |
| Value Vibratory Plate, 15 kN, 500mm/19.5in | VP1550R | 5000009029 |
| Value Vibratory Plate, 13 kN, 400mm/15.5in | VP1340R | 5000009033 |
| Value Vibratory Plate, 20 kN, 500mm/19.5in | VP2050R | 5000009088 |
| Single Direction Asphalt Plate | VP2050RW | 5000009511 |
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.
