The Wacker Neuson Piston with Ring Set is a genuine OEM component designed for the RD7Ye, RD7Yeh LRC, RD7Yehf LRC, RD7Yehfb LRC, and RD10Yehf LRC series walk-behind tandem rollers. Sourced directly from Wacker Neuson, this assembly delivers the exact dimensional tolerances and ring geometry required for proper cylinder sealing and compression in these machines. Fitment covers multiple RD-series configurations, including tandem roller and standard walk-behind roller variants — verify your model number before ordering to confirm compatibility.
Key Features
- OEM Compression Integrity — Genuine Wacker Neuson manufacture ensures ring-to-bore clearances meet the original engine specification, maintaining consistent compression across the piston stroke.
- Complete Assembly — Supplied as a matched piston and ring set so all wear components are replaced together, eliminating the risk of mismatched tolerances from mixing old and new parts.
- Broad RD-Series Fitment — Compatible with RD7Ye, RD7Yeh LRC, RD7Yehf LRC, RD7Yehfb LRC, and RD10Yehf LRC walk-behind rollers, covering a wide range of Wacker Neuson compaction equipment.
- Restored Engine Power Output — A fresh piston and ring set re-establishes cylinder sealing, recovering the combustion pressure needed to deliver full drum force and compaction performance on site.
- Direct OEM Replacement — Part number 5100031873 installs into the existing cylinder bore without machining or adaptation, using the same mounting geometry as the original component.
The piston is the reciprocating component inside the engine cylinder that converts combustion pressure into mechanical force. The ring set — typically comprising compression rings and an oil control ring — seals combustion gases above the piston while regulating oil consumption below it. When piston rings wear, the seal between the piston and cylinder wall deteriorates, leading to lost compression, increased oil burning, reduced power, and hard starting. Replacing the piston and ring set as a matched assembly restores proper cylinder sealing and brings engine output back to its original operating condition.
Part Details
| Part Number | 5100031873 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston with Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD7Ye Tandem Roller | RD7Ye | 5100027116, 5100027117, 5100038032, 5100048340 |
| RD7Yeh LRC | RD7Yeh LRC | 5100006335 |
| RD7Yehf LRC | RD7Yehf LRC | 5100006340 |
| RD7Yehfb LRC | RD7Yehfb LRC | 5100006345 |
| RD10Yehf LRC | RD10Yehf LRC | 5100070502 |
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.
