The Wacker Neuson Piston Ring Set is a genuine OEM component designed for the BV35A-P Backpack Vibrator, PV35A Pole Vibrator, P35A Power Unit, and P31A Power Unit series. As a direct OEM part sourced through authorized channels, the is manufactured to the same specifications as the original ring set installed at the factory. This set covers an extensive range of BV35A-P, PV35A, and P35A configurations — including EU-market variants — making it the correct choice for technicians servicing this engine family across multiple machine types. Confirming your model number and machine number before ordering ensures a straightforward fit into your existing engine assembly.
Key Features
- OEM Ring Geometry and Material Grade — Manufactured to exact bore diameter, ring width, and tension specifications for the 35A engine series, ensuring proper cylinder sealing from the first startup after installation.
- Drop-In Engine Rebuild Fit — Designed to seat directly into the original piston ring grooves on BV35A-P, PV35A, P35A, and P31A engines with no rework to the piston or cylinder bore required during a standard top-end rebuild.
- Broad Series Coverage — A single part number covers BV35A-P Backpack Vibrators, PV35A Pole Vibrators, P35A Power Units, and P31A Power Units across both standard and EU-market configurations.
- Compression Integrity Restored — Correctly seated piston rings maintain combustion chamber compression, directly determining the power output and consistent vibration frequency delivered to the screed or vibrator head.
- Emissions and Engine Compliance — Proper ring seal controls oil consumption and combustion blow-by; using a correctly spec'd OEM ring set helps keep exhaust emissions within the limits applicable to the engine's certification class.
Piston rings form the dynamic seal between the piston and the cylinder wall inside the engine. Their primary job is to contain combustion pressure above the piston, transferring that force into crankshaft rotation, while also scraping excess oil off the cylinder wall to prevent it from burning in the combustion chamber. When piston rings wear, crack, or lose tension, compression drops, the engine loses power, oil consumption increases, and in internal vibrators and power units this directly reduces the vibration output delivered to the concrete or screed surface. Replacing a worn ring set during a scheduled top-end service restores compression and extends overall engine life.
Part Details
| Part Number | 5000157591 |
|---|---|
| Old Part Number | 0157591 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BV 35A-P Backpack Vibrator | BV35A-P | 5000620398, 5000620617 |
| Pole Vibrator | PV35A | 5000620401, 5000620618 |
| Pole Vibrator | PV35A EU | 5000620890 |
| Backpack Vibrator | BV35A-P EU | 5000620891 |
| P35A Power Unit | P35A | 5000620364, 5000620956, 5000620958, 5100057755, 5100057756, 5000620616 |
| Power Unit for Wet Screed | P35A EU | 5000620851, 5000620957 |
| Power Unit for Wet Screed | P31A | 5000009365 |
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.
