Wacker Neuson 5100002961 O-Ring

The Wacker Neuson 5100002961 is a genuine OEM O-Ring designed for the BS-series gasoline vibratory rammer lineup, covering a wide range of models from the BS30 through the BS70-2plus. As a direct OEM replacement sourced through authorized channels, this O-Ring is manufactured to the exact material and dimensional specifications Wacker Neuson requires for proper sealing performance in these machines. Fitment spans the BS50-2, BS50-2plus, BS60-2, BS60-2plus, BS62-2, BS68-2, BS70-2, and BS70-2plus series, including US, CN, and Sunbelt-designated variants. When seal integrity matters in the field, specifying the correct OEM part number — 5100002961 — is the most reliable way to ensure a proper fit.

Key Features

• OEM-Grade Sealing Material — Manufactured to Wacker Neuson's exact compound and durometer specifications, ensuring correct compression and sealing force for this rammer application.
• Drop-In Replacement — Dimensionally identical to the original, seating into the same groove and mating surfaces without rework or modification to surrounding components.
• Broad BS-Series Coverage — A single part number fits BS30, BS50-2, BS50-2plus, BS60-2, BS60-2plus, BS62-2, BS68-2, BS70-2, and BS70-2plus models, including US, CN, and Sunbelt variants.
• Maintains Fluid and Air Sealing Integrity — Keeps critical fluids and pressurized air contained within the rammer's internal systems, preventing leaks that can lead to power loss or accelerated wear on adjacent components.
• Fuel System Safety Compliance — Where this O-Ring is used in fuel-circuit passages, using the correct OEM-spec part ensures the seal meets the material resistance requirements for gasoline exposure, reducing the risk of fuel leaks.

An O-Ring is a circular elastomeric seal that sits in a machined groove between two mating surfaces, creating a pressure-tight barrier that prevents fluids or gases from escaping. In a vibratory rammer like the BS-series, O-Rings are used throughout the engine and fuel systems to maintain sealed connections under continuous vibration and thermal cycling. When an O-Ring hardens, cracks, or deforms over time, it loses its ability to hold that seal — resulting in leaks, loss of pressure, or contamination that can damage internal components and reduce rammer output.

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.

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