The Wacker Neuson Coupling is a genuine OEM component designed for the PIR 35, PIR 55, and PIR 75 pneumatic internal vibrator series. As a direct Wacker Neuson OEM part, it is manufactured to the exact tolerances required to maintain proper drive engagement and power transfer within the vibrator head assembly. This coupling is a verified fit for all three PIR models listed, making it a straightforward replacement when the original shows wear or damage.
Key Features
- OEM-Matched Drive Tolerances — Manufactured to exact Wacker Neuson specifications, ensuring the coupling transmits rotational force consistently without slippage or misalignment inside the vibrator assembly.
- Direct Drop-In Replacement — Engineered to install in the same position as the original, connecting to the drive shaft and vibrator head without modification to surrounding components.
- Confirmed Fitment Across PIR Series — Compatible with the PIR 35, PIR 55, and PIR 75 pneumatic internal vibrators, covering the core range of Wacker Neuson air-powered concrete vibration equipment.
- Sustained Vibration Output — A correctly functioning coupling maintains the full eccentric force output of the vibrator head; a worn or fractured coupling causes reduced amplitude, uneven vibration, or complete loss of consolidation performance in the concrete.
- Genuine OEM Assurance — Sourced directly from Wacker Neuson, part number 5000031388 carries the same material grade and dimensional spec as the part originally installed at the factory.
The coupling in a pneumatic internal vibrator serves as the mechanical link between the air-driven motor and the eccentric weight assembly inside the vibrator head. It transfers rotational energy from the drive shaft to generate the high-frequency vibration needed to consolidate fresh concrete and eliminate air pockets. When the coupling wears, cracks, or fails, vibration output drops off or stops entirely — leaving concrete improperly consolidated and potentially compromising structural integrity.
Part Details
| Part Number | 5000031388 |
|---|---|
| Old Part Number | 0031388 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Coupling |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Pneumatic Internal Vibrator | PIR 35 | 5000006416 |
| Pneumatic Internal Vibrator | PIR 55 | 5000006418 |
| Ø 75 mm, PneumaticInternal Vib rator | PIR 75 | 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.
