The Wacker Neuson Piston is a genuine OEM Piston designed for the RD7 series tandem rollers and DPU 4045H, DPU 4545H, DPU 5045H, and DPU 5545H reversible vibratory plate compactors. Sourced directly from Wacker Neuson, this part meets the exact engineering tolerances specified for these machines — no guesswork, no compromise on fit. It is a direct OEM replacement for the original piston, ensuring the engine assembly performs exactly as designed. Compatible across a broad range of RD7 and DPU H-series configurations, part number is the correct choice when replacing a worn or damaged piston in these units.
Key Features
- Correct Bore Geometry: — Manufactured to OEM dimensional tolerances for proper ring seal and compression retention within the cylinder bore.
- Drop-In Engine Replacement: — Engineered to install directly into the original cylinder assembly on covered RD7 and DPU H-series machines without reworking engine components.
- Broad RD7 and DPU Series Coverage: — Fits RD7H, RD7He, RD7Heh, and RD7Hehf tandem rollers alongside DPU 4045H, DPU 4545H, DPU 5045H, and DPU 5545H reversible plate compactor variants.
- Sustained Engine Output: — A correctly fitted piston maintains cylinder compression and fuel combustion efficiency, keeping hydraulic drive and vibration systems at full working capacity.
- Genuine OEM Part: — Supplied by Wacker Neuson as original equipment, part 5000226583 matches the material grade and profile of the factory-installed component.
The piston is the reciprocating component at the heart of the engine's combustion cycle. It travels up and down inside the cylinder bore, compressing the air-fuel mixture on the compression stroke and transferring the force of combustion to the crankshaft via the connecting rod. A worn or damaged piston compromises cylinder compression, leading to hard starting, loss of power, increased fuel consumption, and — in severe cases — catastrophic engine failure. Replacing a worn piston promptly with a correctly spec'd OEM part restores full compression and protects downstream engine components from accelerated wear.
Part Details
| Part Number | 5000226583 |
|---|---|
| Old Part Number | 0226583 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD 7S | RD7H-S EU | 5000620795 |
| RD7H-S ROLLER,DOUBLE DRUM | RD7H-S | 5000009487 |
| RD7 Tandem Roller | RD7He | 5100017193, 5100017194, 5200015241, 5200015244, 5100038031, 5100018451 |
| RD7 Tandem Roller | RD7H | 5100017195, 5100017338, 5200015242, 5200015245 |
| V.Plate DPU 5045Heap | DPU 5045H | 5000610046, 5000610052, 5000610047 |
| V.Plate DPU 4045Hap | DPU 4045H | 5000610044, 5000610051, 5000610064 |
| DPU5545Heh | DPU5545Heh | 5100009652 |
| DPU5545HEH US | DPU5545Heh US | 5100009653 |
| DPU5545Hehap | DPU5545Hehap | 5100009654 |
| DPU5545Hech | DPU5545Hech | 5100009655, 5100051523 |
| DPU4545Heh | DPU4545Heh | 5100009659 |
| DPU4545HEH US | DPU4545Heh US | 5100009660 |
| DPU4545Hech | DPU4545Hech | 5100015429, 5100051522 |
| DPU5545He | DPU5545He | 5100016947 |
| DPU5545Heap | DPU5545Heap | 5100016949 |
| DPU5545Hec | DPU5545Hec | 5100016950 |
| DPU4545He | DPU4545He | 5100016951 |
| DPU4545Hec | DPU4545Hec | 5100016953 |
| DPU5545H | DPU 5545H | 5100009656, 5000610352 |
| DPU4545H | DPU 4545H | 5100009661, 5000610348 |
| DPU5545HECH US | DPU5545Hech US | 5100016948 |
| DPU4545HECH US | DPU4545Hech US | 5100016952 |
| DPU4545Hechzf | DPU4545Hechzf | 5100022112 |
| DPU 5045He-VIBROPLATE | DPU 5045He US | 5000610367 |
| DPU5545He-VIBROPLATE | DPU 5545He US | 5000610402 |
| Vibratory Plate DPU 4545He US | DPU 4545He US | 5100000679 |
| DPU4545He-VIBROPLATE | DPU 4545He | 5000610347 |
| Vibratory Plate DPU 4545Hap | DPU 4545Hap | 5000610349 |
| Vibratory Plate DPU 5545He | DPU 5545He | 5000610351 |
| Vibratory Plate DPU 5545Heap | DPU 5545Heap | 5000610353 |
| Vibratory Plate | DPU 5545Hec | 5100005859 |
| RD7Heh | RD7Heh | 5100006334 |
| RD7Hehf | RD7Hehf | 5100006339 |
| RD7Hehfb | RD7Hehfb | 5100006344 |
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.
