The Wacker Neuson O-Ring 35 X 3.2 70 Sh is a genuine OEM sealing component designed for the PIR 55 and PIR 75 series pneumatic internal vibrators. As a factory-sourced part, it meets the exact material and dimensional specifications Wacker Neuson requires to maintain a leak-free seal in demanding concrete consolidation applications. This O-Ring is confirmed to fit multiple configurations across the PIR 55 and PIR 75 model lines, making it the straightforward choice when servicing these vibrators in the field.
Key Features
- Genuine OEM Seal Material — Sourced directly from Wacker Neuson, this O-Ring is produced to the same 70 Shore hardness compound specification as the original, ensuring correct compression set and chemical resistance under pneumatic operating pressure.
- Exact Dimensional Match — At 35 x 3.2 mm, this ring seats flush in the original groove without adjustment, maintaining a consistent sealing surface on reassembly.
- Broad PIR Series Coverage — Fits multiple configurations of the Wacker Neuson PIR 55 and PIR 75 pneumatic internal vibrators, covering both 55 mm and 75 mm head diameter variants.
- Sustained Vibration Output — A correctly seated O-Ring holds internal air pressure at spec, allowing the vibrator head to deliver consistent frequency and amplitude for thorough concrete consolidation. A degraded seal causes pressure loss and reduced vibration performance.
- Verified Part Number — Order with confidence: part number 5002006780 is the correct Wacker Neuson reference for this O-Ring across all listed PIR 55 and PIR 75 model numbers.
An O-Ring is a precision-molded elastomeric seal that sits in a machined groove to prevent fluid or air from passing between two mating surfaces. In pneumatic internal vibrators like the PIR 55 and PIR 75, the O-Ring maintains the internal air pressure that drives the eccentric vibrating mechanism inside the head. When an O-Ring wears, flattens, or cracks, the seal is lost — air escapes past the joint, vibration output drops, and the vibrator head may stop functioning altogether, interrupting concrete placement and requiring immediate attention before the pour is compromised.
Part Details
| Part Number | 5002006780 |
|---|---|
| Old Part Number | 2006780 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring 35 X 3.2 70 Sh |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Ø 55 mm, PneumaticInternal Vib rator | PIR 55 | 5000006417, 5000006418 |
| Ø 75 mm, PneumaticInternal Vib rator | PIR 75 | 5000006419, 5000006420 |
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