The Wacker Neuson Diaphragm is a genuine OEM component designed for the BS50-4As, BS60-4As, BS70-4As, BS65-4As, and BS72-4As series rammers. Sourced directly from Wacker Neuson, this diaphragm meets the same specifications as the original part fitted at the factory, ensuring a direct drop-in replacement with no guesswork on compatibility. Fitment covers a wide range of 11-inch BS-series rammers across US, international, and CN configurations, including later production variants of the BS60-4As. If your machine is listed above, part number is the correct diaphragm for your application.
Key Features
- OEM-Grade Flexible Material — Manufactured to the same durometer and flex-fatigue specification as the original, maintaining consistent fuel metering and carburetor response under working conditions.
- Direct Carburetor Replacement — Seats and seals exactly as the original diaphragm, restoring airtight function to the carburetor chamber without trimming or adaptation.
- Broad BS-Series Compatibility — Confirmed fit across BS50-4As, BS60-4As, BS65-4As, BS70-4As, and BS72-4As rammers in US, standard, and CN variants.
- Restores Consistent Fuel Delivery — A failed or cracked diaphragm causes hard starting, erratic idling, and loss of power; replacing it with 5100049173 brings the carburetor back to proper operating condition.
- Genuine Wacker Neuson Part — Supplied as genuine OEM, meaning part number, material, and dimensions are verified against the original engineering specification for this rammer series.
The diaphragm is a flexible membrane inside the carburetor that regulates fuel flow in response to engine demand. It flexes with each pressure and vacuum pulse generated by the engine, drawing fuel from the tank and delivering it at the correct rate to keep the engine running smoothly. When the diaphragm hardens, cracks, or develops pinholes — as rubber components do over time with fuel exposure — the carburetor loses its ability to meter fuel accurately, leading to difficult starting, rough running, or the engine refusing to stay running at all. Replacing a worn diaphragm is one of the most straightforward carburetor service steps and typically restores full engine performance immediately.
Part Details
| Part Number | 5100049173 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Diaphragm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BS50-4AS 11IN US | BS50-4As 11in US | 5100030598 |
| BS50-4As 11in | BS50-4As 11in | 5100030599 |
| BS60-4AS 11IN US | BS60-4As 11in US | 5100030605, 5100054151 |
| BS60-4As 11in | BS60-4As 11in | 5100030606, 5100037562, 5100051581 |
| BS70-4As 11in US | BS70-4As 11in US | 5100030610 |
| BS70-4As 11IN | BS70-4As 11in | 5100030611 |
| Rammer BS60-4As 11in CN | BS60-4As 11in CN | 5100058869 |
| BS65-4As 11in | BS65-4As 11in | 5100061307 |
| BS72-4As 11in | BS72-4As 11in | 5100061309 |
| 4 stroke rammer BS50-4As, 280 mm adapter | BS50-4As 11in o. bsz | 5100068310 |
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.
