The Wacker Neuson is a genuine OEM Shaft Seal.31 X.75 X.25 1B designed for Wacker Neuson internal concrete vibrator power units and vibrator heads. This seal fits a wide range of models including the A5000/160, A5000/160B, A1500/035, L5000/225, M1500, M2500, H25, and H25S series. As a direct OEM replacement, part is produced to the exact material and dimensional specifications of the original component. Keep this seal on hand to avoid unexpected fluid loss and keep your vibrators running between pours.
Key Features
- OEM-Grade Seal Material — Manufactured to the precise compression and material ratings required for the shaft diameter and housing tolerances of Wacker Neuson internal vibrator units.
- Drop-In Replacement — Matches the original .31 x .75 x .25 inch cross-section exactly, seating correctly in the shaft bore without rework or shimming.
- Broad Fitment Coverage — Fits A5000/160, A5000/160B, A1500/035, L5000/225, M1500/120, M1500/230, M2500/120, M2500/230, H25, and H25S vibrator power units and heads.
- Prevents Fluid Migration — A properly seated shaft seal keeps lubricant inside the housing and contaminants out, protecting internal drive components from accelerated wear.
- Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, ensuring this is the same seal used in original production — not an approximation of the spec.
The shaft seal in a concrete vibrator power unit acts as a barrier between the rotating drive shaft and the exterior environment. It retains the internal lubricant that keeps the drive mechanism running smoothly while preventing water, concrete slurry, and abrasive debris from entering the housing. When a shaft seal wears out or fails, lubricant escapes and contamination enters — leading to premature wear on the drive shaft and internal bearings, reduced vibrator performance, and eventual unit failure. Replacing the seal at the first sign of leakage is the most cost-effective way to protect the rest of the drive assembly.
Part Details
| Part Number | 5000029778 |
|---|---|
| Old Part Number | 0029778 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Shaft Seal .31 X .75 X .25 1B |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| A5000/160 ISO | A5000/160 ISO | 5000610325 |
| A5000/160 ANSI | A5000/160 ANSI | 5000610340 |
| H25S Vibrator Head, 1" | H 25 S | 5000006566 |
| H25 Vibrator Head, 1" | H 25 | 5000006567 |
| L5000/225 ISO | L5000/225 ISO | 5000610329 |
| A1500-POWER UNIT,HONDA,35CC | A1500/035 ISO | 5000610324 |
| A1500 POWER UNIT, HONDA | A1500/035 ANSI | 5000610339 |
| L5000/225 ANSI | L5000/225 ANSI | 5000610341 |
| M1500/120 | M1500/120 US | 5100004500 |
| M1500/230 | M1500/230 EU | 5100005142 |
| M1500/120 GB | M1500/120 GB | 5100005145 |
| M2500/120 | M2500/120 US | 5100006000 |
| M2500/230 | M2500/230 EU | 5100009717 |
| M2500/120 | M2500/120 GB | 5100010890 |
| Drive Engine | M2500/230 EU W | 5100047311 |
| A5000/160B | A5000/160B | 5100068212 |
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.
Wacker Neuson