Wacker Neuson 5000045904 Piston Ring

The Wacker Neuson 5000045904 is a genuine OEM Piston Ring designed for the BS-series gasoline vibratory rammer lineup, covering a wide range of BS50-2, BS60-2, BS70-2, BS62-2, BS65, BS68-2, and related BS-family models. As a direct OEM replacement sourced through authorized Wacker Neuson supply channels, part number 5000045904 meets the same dimensional and material standards as the ring installed at the factory. Fitment spans both standard and "i" (fuel-injected) variants across multiple configuration suffixes, making this one of the broadest-coverage engine components in the BS rammer parts catalog. Verify your machine's model number before ordering to confirm applicability to your specific unit.

Key Features

• OEM-Grade Ring Seal Integrity — Manufactured to the same bore diameter, ring width, and end-gap tolerances as the original, ensuring proper compression sealing in the BS-series two-stroke engine.
• Drop-In Cylinder Replacement — Sized to seat directly into the existing cylinder bore on compatible BS rammer models without machining or modification to the bore or piston.
• Broad BS-Series Coverage — Fits a wide range of BS50-2, BS60-2, BS70-2, BS62-2, BS65, BS68-2, and MS-series rammer configurations, including standard, "i," "plus," and regional variants.
• Compression and Power Restoration — A worn or broken piston ring causes loss of cylinder compression, resulting in hard starting, reduced impact force, and excessive fuel consumption. Replacing with 5000045904 restores full compaction output.
• Genuine Wacker Neuson OEM Part — Supplied as an authentic OEM component, ensuring the ring material and profile match the engine's original design specification for the BS rammer family.

The piston ring forms a dynamic seal between the piston and the cylinder wall in the rammer's two-stroke engine. It prevents combustion gases from bypassing the piston — a condition known as blow-by — while also helping to regulate the thin film of oil that lubricates the cylinder bore. When a piston ring wears, loses tension, or breaks, the engine loses compression pressure, which directly reduces the striking force the rammer delivers to the ground. Left unaddressed, a failed ring can allow combustion gases to score the cylinder wall, turning a straightforward ring replacement into a far more involved engine repair.

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.