Wacker Neuson 5000045904 Piston Ring

The Wacker Neuson 5000045904 is a genuine OEM Piston Ring designed for the BS-series gasoline vibratory rammer family, covering a wide range of BS50-2, BS60-2, BS70-2, BS62, BS65, and BS68 models across multiple machine configurations and regional variants. As a genuine Wacker Neuson part, the 5000045904 is manufactured to the exact dimensional and material specifications required by these rammers, ensuring correct ring end gap, compression sealing, and cylinder wall compatibility straight out of the box. This Piston Ring fits an extensive list of BS-series configurations — including standard, plus, i, and Y variants — making it one of the most broadly applicable engine components in the Wacker Neuson rammer line. Confirm your machine number against the fitment list before ordering to ensure you have the correct ring for your specific model.

Key Features

• Exact OEM Compression Geometry — Manufactured to Wacker Neuson's original ring profile, ensuring correct radial tension and cylinder bore contact for proper compression sealing on BS-series two-stroke engines.
• Direct Cylinder Drop-In — Sized to match the original bore dimensions across BS50-2, BS60-2, BS70-2, BS62, BS65, and BS68 rammer variants, so installation follows the standard engine rebuild procedure without bore modification.
• Broad Series Coverage — A single part number spans standard, plus, i, Y, b, lb, and V sub-variants of the BS rammer family, including US, EU, CN, and Sunbelt market configurations.
• Restored Compression and Power Stroke — A worn or broken piston ring causes compression loss, hard starting, excessive oil consumption, and reduced impact energy at the foot. Replacing with a correctly spec'd OEM ring restores full rammer performance and trench compaction efficiency.
• Fuel System Integrity — Proper ring seal prevents unburned fuel from bypassing into the crankcase, protecting the lower end bearings and extending overall engine service life between rebuilds.

The piston ring forms the critical seal between the piston and the cylinder wall inside a two-stroke engine. It maintains combustion chamber pressure by preventing combustion gases from escaping past the piston during the power stroke, which is what drives the rammer's impact mechanism. When a piston ring wears, cracks, or loses its radial tension, compression drops sharply — the engine becomes difficult to start, loses power, and may begin burning oil or producing excessive exhaust smoke. On a vibratory rammer, reduced compression translates directly to weaker blows at the shoe and inconsistent soil compaction, making a timely ring replacement essential to keeping the machine working to specification.

Part Details

Compatibility & Fitment

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.