The Wacker Neuson Cup Spring is a genuine OEM component designed for the PIR 75 series pneumatic internal concrete vibrators. As a factory-sourced part, it is manufactured to the exact tolerances and material specifications required for proper operation within the vibrator assembly. This Cup Spring is a direct-fit replacement for PIR 75 units, including models PIR 75. Keeping this small but critical spring in serviceable condition is essential to maintaining consistent vibrator performance on the concrete deck.
Key Features
- Genuine OEM Spring Geometry — Manufactured to exact load and deflection characteristics required by the PIR 75 vibrator assembly, not approximated from aftermarket tooling.
- Direct-Fit for PIR 75 Series — Engineered to seat correctly within the cup spring pocket of the PIR 75 pneumatic internal vibrator without modification to surrounding components.
- Confirmed Fitment — Compatible with PIR 75 pneumatic internal concrete vibrators, covering both 5000006419 and 5000006420 machine configurations.
- Sustains Vibration Transmission — A correctly functioning Cup Spring maintains the mechanical coupling needed to deliver consistent vibration energy to the concrete, preventing voids and honeycombing in poured slabs.
- OEM Part Number Verified — Sold under Wacker Neuson part number 5000068289, so you can cross-reference against your service manual and order with confidence.
The Cup Spring in a pneumatic internal concrete vibrator acts as a load-bearing and energy-transfer element within the vibrator head assembly, helping to regulate and transmit the mechanical forces that produce the high-frequency vibration needed to consolidate fresh concrete. When this spring weakens, deforms, or fractures, the vibrator head may lose vibration intensity or become erratic, leading to poorly consolidated concrete and potential structural issues in finished pours. Replacing a worn Cup Spring promptly restores the vibrator to full operating performance and protects the surrounding components from the added stress of an unbalanced assembly.
Part Details
| Part Number | 5000068289 |
|---|---|
| Old Part Number | 0068289 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cup Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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.
