The Wacker Neuson 5000103399 is a genuine OEM Piston Guide designed for the BS50-2, BS50-2i, BS50-2 EU, BS500, BS500-oi, BS500S, and MS52 series gasoline vibratory rammers. As a direct factory replacement, this part is produced to the same specifications as the original component installed at the time of manufacture, ensuring accurate fitment across the full range of compatible BS-family machines. Whether you are servicing a BS50-2i or an older BS500 unit, part number 5000103399 is the correct replacement to restore proper piston travel and stroke alignment.
Key Features
- OEM-Spec Bore Tolerance — Manufactured to Wacker Neuson's original dimensional tolerances, keeping piston-to-cylinder alignment within spec for consistent stroke output on every compaction cycle.
- Drop-In Replacement — Engineered to the same interface dimensions as the factory-installed guide, allowing installation without re-machining or adapting the surrounding assembly.
- Broad BS-Family Compatibility — Fits a wide range of gasoline rammer variants including the BS50-2, BS50-2i, BS50-2 EU, BS500, BS500-oi, BS500S, and MS52 models.
- Sustained Compaction Stroke Integrity — A properly functioning piston guide maintains the linear travel path of the piston; wear or failure causes erratic stroke, reduced impact energy, and accelerated wear on adjacent components.
- Verified Part Number — Sold under Wacker Neuson part number 5000103399, traceable through the official parts system for accurate service recordkeeping.
The piston guide is a precision-fit component inside the rammer's cylinder assembly that controls the lateral position of the piston as it travels through its stroke cycle. By maintaining the piston on a true linear path, the guide ensures that each downward stroke delivers its full compactive force to the shoe and into the soil. When the guide becomes worn or damaged, the piston can shift off-axis during travel, causing uneven impact energy, increased vibration transmitted to the housing, and premature wear on the cylinder bore and piston rings — ultimately degrading compaction performance and shortening engine assembly life.
Part Details
| Part Number | 0103399 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Guide |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BS 50-2 | BS 50-2 | 0009380, 0009382, 0009384, 0620609, 0620610, 0620733 |
| BS50-2 | BS50-2 | 5000620025, 5000620048, 5100014171, 5100016644, 5100016645, 5100016646, 5100016647, 5200000641, 5200000652, 5200000653, 5200000654, 5200000655, 5200000656, 5200000677, 5200000685, 5200000686 |
| BS50-2 EU | BS50-2 EU | 5000009410, 5000009411, 5000009413 |
| BS50-2i | BS50-2i | 5000009473, 5000620026, 5200000657, 5200000658, 5200000659, 5200000660, 5200000661, 0009383, 5100014907, 5100016648, 5100016649, 5100016650, 5100028037, 5200000642, 5200000643, 5200000678, 5200000687, 5200003696, 5200011099, 5200025428, 5200025429 |
| BS 50-2i | BS 50-2i | 0009332, 0009338, 0620611 |
| BS50-2i EU | BS50-2i EU | 5000009412, 5000009414, 5000009416 |
| BS 500 | BS 500 | 0008048, 0008204, 0009074 |
| BS500 | BS500 | 5000007550, 5000008049, 5000009075 |
| BS 500-oi | BS 500-oi | 0009343 |
| BS500-oi | BS500-oi | 5000009165 |
| BS 500S | BS 500S | 0009211 |
| MS52 | MS52 | 5200008222 |
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.
