The Wacker Neuson Piston is a genuine OEM piston designed for the RD40-130, RD45-140, RD40-130c, RD45-140c, RD40-130o, RD45-140o, RD24e-100, and RD28e-120 series double drum rollers, including DPF-equipped variants. As a factory-sourced component, this piston is manufactured to the exact tolerances and material specifications Wacker Neuson engineers built these machines around. Whether you are servicing a standard, padfoot, or oscillation drum configuration, part number is the correct OEM replacement across all covered model variants. Cross-reference your machine's model number before ordering to confirm this is the right fit for your unit.
Key Features
- OEM Dimensional Accuracy — Manufactured to the precise bore diameter and crown geometry Wacker Neuson specifies, ensuring correct compression and combustion chamber clearance for this engine application.
- Drop-In Engine Replacement — Engineered to seat and seal exactly as the original, working with existing rings, connecting rod, and cylinder bore without additional machining or fitting.
- Broad RD Series Coverage — A single part number covers RD40-130, RD45-140, RD24e-100, and RD28e-120 series rollers across standard, padfoot, oscillation, and DPF configurations.
- Sustained Power Output — A correctly fitted piston maintains proper compression, directly supporting consistent drum vibration force and compaction performance across the full operating cycle.
- Combustion Integrity — A worn or failed piston causes compression loss, blow-by, excessive oil consumption, and potential engine seizure — installing a genuine replacement restores sealed combustion and protects the engine long-term.
The piston is the reciprocating component at the heart of the engine's power stroke. It travels up and down inside the cylinder bore, compressing the air-fuel mixture and transferring combustion force through the connecting rod to the crankshaft, which ultimately drives the vibratory drum system on these roller machines. When a piston wears, develops cracks, or loses its ring lands, compression drops and the engine runs rough, burns oil, or fails to develop adequate power — directly impacting compaction output and machine reliability on site.
Part Details
| Part Number | 5100065372 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RD40-130 DPF | RD40-130 DPF | 5100055777 |
| RD45-140 DPF | RD45-140 DPF | 5100055778 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD40-130o DPF | RD40-130o DPF | 5100055781 |
| RD45-140o DPF | RD45-140o DPF | 5100055782 |
| RD24e-100 | RD24-100e | 5100066731 |
| RD28e-120 | RD28-120e | 5100066732 |
| RD24e-100c | RD24-100ce | 5100066733 |
| RD28e-120c | RD28-120ce | 5100066734 |
| RD24e-100o | RD24-100oe | 5100066735 |
| RD28e-120o | RD28-120oe | 5100066736 |
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.
