The Wacker Neuson is a genuine OEM Metering Diaphragm Gasket designed for the BV35A-P Backpack Vibrator, PV35A Pole Vibrator, P35A Power Unit, P31A Power Unit, and PG1 Dewatering Pump series. As a factory-sourced component, part is manufactured to the exact material and dimensional specifications required for proper carburetor metering function in these units. This gasket seals the metering chamber within the carburetor, ensuring the fuel-air ratio stays consistent under the variable demands of field operation. Confirmed fitment spans multiple configurations including standard and EU variants of the BV35A-P and PV35A, as well as wet screed power units in the P35A and P31A families.
Key Features
- Exact OEM Material Specification — Manufactured from the same compound as the original, ensuring the correct compression and chemical resistance for fuel-contact sealing in the metering chamber.
- Direct Carburetor Drop-In — Sized to seat flush against the metering diaphragm without trimming or shimming, allowing a straightforward carburetor rebuild or service.
- Broad Series Fitment — Covers BV35A-P Backpack Vibrators, PV35A Pole Vibrators, P35A and P31A Power Units (including EU variants and wet screed configurations), and the PG1 Dewatering Pump.
- Consistent Fuel Metering Restored — A failed or hardened metering gasket causes lean running, hard starting, and erratic engine speed; replacing it restores smooth, controlled fuel delivery.
- Fuel System Integrity — A correctly sealed metering chamber prevents uncontrolled fuel bypass, which is critical for safe, stable engine operation on backpack and pole-mounted units.
The metering diaphragm gasket sits inside the carburetor and seals the boundary between the metering chamber and the fuel inlet side of the diaphragm assembly. It works alongside the metering diaphragm to regulate how much fuel enters the engine in response to throttle demand, keeping combustion stable across different load conditions. When this gasket hardens, cracks, or loses its sealing edge, fuel can bypass the metering circuit uncontrolled, leading to rough idle, flooding, or an engine that refuses to start — making it one of the first components to inspect during a carburetor service.
Part Details
| Part Number | 5000157490 |
|---|---|
| Old Part Number | 0157490 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Metering Diaphragm Gasket |
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 |
| Dewatering Pump | PG1 | 5100031509 |
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.
