Wacker Neuson 5000103277 O-Ring 126 X 2.5

The Wacker Neuson is a genuine OEM O-Ring 126 X 2.5 designed for the IREN series electric internal concrete vibrators. As a direct factory replacement, this O-Ring 126 X 2.5 maintains the sealing integrity required to protect the vibrator's internal components during operation. It fits an extensive range of IREN models spanning the 30 mm, 38 mm, 45 mm, 57 mm, and 65 mm head diameter families, including short, standard, and extended-hose variants across 115 V, 250 V, and GV configurations.

Key Features

• OEM-Grade Sealing Material — Manufactured to Wacker Neuson's original compound and dimensional specification, ensuring the correct compression set and sealing force for this vibrator application.
• Direct Drop-In Replacement — Dimensioned at 126 x 2.5 mm to seat precisely in the original groove, allowing straightforward installation without machining or modification.
• Broad IREN Series Coverage — Compatible with IREN 30, 38, 45, 57, 57k, 65, and 65k head families, including GV, ST, and multi-meter hose variants across multiple voltage configurations.
• Protects Internal Drive Components — A correctly seated O-ring prevents moisture and concrete slurry from migrating into the vibrator head, directly protecting the motor and eccentric weight from contamination damage.
• Verified Wacker Neuson Part Number — Sourced as genuine OEM under part number 5000103277, so you can be confident the correct part ships for your specific IREN model.

An O-ring in an internal concrete vibrator serves as a critical barrier between the working environment and the sealed internal assembly of the vibrator head. During operation, the head is submerged in wet concrete, meaning any seal failure allows abrasive slurry and moisture to enter the motor housing or eccentric vibrator mechanism. A damaged or worn O-ring will allow ingress that quickly causes corrosion, electrical failure, or bearing wear, shortening service life dramatically. Replacing this seal at the correct service interval — or whenever the head is opened for maintenance — keeps the vibrator running at full output and prevents costly internal repairs.

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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