The Wacker Neuson Cylinder with Piston is a genuine OEM component designed for the RD7H series tandem rollers and DPU 4045H and DPU 5045H series diesel reversible vibratory plate compactors. As a direct factory replacement, this assembly ships as a matched cylinder and piston unit, ensuring the bore-to-piston fit meets original manufacturer tolerances right out of the box. Sourced directly from Wacker Neuson, part number carries the same specifications as the component installed at the factory. Confirm your model number against the fitment list before ordering to ensure a correct application match.
Key Features
- Factory-Matched Bore and Piston Tolerancing — Genuine OEM construction means the cylinder bore and piston are dimensionally paired to original spec, preserving compression integrity and engine output.
- Drop-In Assembly Replacement — Supplied as a complete cylinder and piston unit, this assembly installs in place of the original without the need to source and match components separately.
- Broad Fitment Across Two Equipment Families — Compatible with RD7H series tandem rollers (including RD7H, RD7H-S, and RD7H-ES variants) and DPU 4045H and DPU 5045H series diesel reversible vibratory plate compactors.
- Compression and Power Restoration — A worn or scored cylinder or piston leads to loss of compression, hard starting, and reduced compaction force; replacing with 5000207781 restores full engine performance.
- Fuel System Integrity — Correct piston-to-cylinder fit maintains proper combustion chamber sealing, preventing blow-by that can contaminate engine oil and accelerate internal wear.
The cylinder and piston are the core of the engine's power stroke. The piston travels up and down inside the cylinder bore, compressing the air-fuel mixture and transferring combustion energy to the crankshaft. Over time, repeated heat cycles and mechanical friction can wear the cylinder walls or piston rings, resulting in lost compression, increased oil consumption, rough running, and diminished drive force to the drum or compaction plate. Replacing the assembly with a correctly spec'd unit like the Wacker Neuson 5000207781 restores the tight tolerances the engine depends on to run efficiently and deliver full compaction output.
Part Details
| Part Number | 5000207781 |
|---|---|
| Old Part Number | 0207781 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cylinder with Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD 7ES | RD7H-ES EU | 5000620794 |
| RD7H-ES Tandem Roller | RD7H-ES | 5000009408 |
| RD7H-S ROLLER,DOUBLE DRUM | RD7H-S | 5000009487 |
| RD 7S | RD7H-S EU | 5000620795 |
| Double Drum Vibratory Roller | RD7H | 5000008042 |
| V.Plate DPU 5045Heap | DPU 5045H | 5000610046, 5000610052, 5000610047 |
| V.Plate DPU 4045Hap | DPU 4045H | 5000610044, 5000610051, 5000610064 |
| DPU 5045He-VIBROPLATE | DPU 5045He US | 5000610367 |
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.
