The Wacker Neuson Cup Spring is a genuine OEM component designed for the AR 26, AR 36, and ARFU series external vibrators. As an authentic Wacker Neuson part, it is manufactured to the exact specifications required for correct operation in these units, giving you a direct, stock replacement with no guesswork. This part covers an extensive range of AR and ARFU external vibrator models across multiple voltage configurations, including 042, 115, 230, 240, 250, 400, and 460-volt variants. Whether you're servicing a single unit on a small pour or maintaining a fleet of external vibrators on a large commercial site, part number keeps your equipment performing as intended.
Key Features
- Genuine OEM Spring Integrity — Manufactured to Wacker Neuson's exact load and deflection characteristics, ensuring the cup spring delivers the correct compression force within the vibrator assembly.
- Direct Stock Replacement — Drops into the same seat as the original, with no reworking of surrounding components required during installation.
- Broad External Vibrator Coverage — Compatible with AR 26, AR 36, and ARFU series external vibrators spanning a wide range of voltage configurations and regional variants.
- Sustained Vibration Output — A correctly functioning cup spring maintains consistent force transmission within the vibrator; a worn or collapsed spring leads to erratic output and accelerated wear on adjacent internal components.
- Verified OEM Part Number — Supplied as Wacker Neuson part 5000202934, sourced through authorized channels to confirm you receive the correct part for your model.
A cup spring — also known as a Belleville washer or disc spring — stores and releases mechanical energy under axial load, providing controlled preload and cushioning within an assembly. In an external concrete vibrator, it plays a key role in maintaining the correct clamping or tensioning force on internal components, absorbing operational shock and preventing unwanted play that would otherwise cause vibration loss or mechanical damage. When a cup spring fatigues, cracks, or loses its deflection range, the vibrator may run inconsistently, produce reduced concrete consolidation, or place excess stress on the surrounding drive components.
Part Details
| Part Number | 5000202934 |
|---|---|
| Old Part Number | 0202934 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cup Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| External Vib. ARFU 36/6/230 | ARFU 36/6/230 | 5000610000 |
| ARFU26/6/120 US | ARFU26/6/120 US | 5100004244 |
| ARFU 36/6/115/US EXT. VIBRATOR | ARFU 36/6/115 | 5000610002, 5000610003 |
| AR 26/6/042 cs | AR 26/6/042 cs | 5100003940 |
| ARFU26/6/230 | ARFU26/6/230 | 5100004243 |
| ARFU26/6/115 | ARFU26/6/115 UK | 5100004245 |
| AR26/3/230w | AR 26/3/230 w | 5100003938 |
| AR 26/6/250 | AR 26/6/250 | 5100003953 |
| AR26/3/400 | AR 26/3/400 | 5100003960, 5000008982 |
| AR26/3,6/230 | AR 26/3,6/230 | 5100003961 |
| AR36/6/042 EXTERNAL VIBRATOR | AR 36/6/042 | 5000008933, 5000008965, 5000008986 |
| External Vib. AR 36/12/042 | AR 36/12/042 | 5000008961 |
| External Vib. AR 36/6/042LBV | AR 36/6/042 LBV | 5000008962 |
| External Vib. AR 36/6/115 | AR 36/6/115 | 5000008963 |
| AR36/3.6/115W EXT. VIBRATOR | AR 36/3,6/115 W US | 5000008964 |
| External Vib. AR 36/3/230 W | AR 36/3/230 W | 5000008967 |
| AR36/3.6/240W-EXT.VIBRATOR | AR 36/3,6/240 W | 5000008968 |
| Ext. Vib. AR 36/3/230 Vario | AR 36/3/230 Vario | 5000008969 |
| External Vib. AR 36/3/240W | AR 36/3/240 W | 5000008970 |
| External Vib. AR 36/6/250 | AR 36/6/250 | 5000008971 |
| External Vib. AR 36/3/400 | AR 36/3/400 | 5000008973 |
| External Vib. AR 36/3,6/400 | AR 36/3,6/400 | 5000008974 |
| External Vib. AR 36/3,6/440 | AR 36/3,6/440 | 5000008976 |
| External Vib. AR 36/3,6/460 | AR 36/3,6/460 | 5000008977 |
| External Vib. AR 36/3,6/480 | AR 36/3,6/480 | 5000008978 |
| External Vib. AR 36/3/500 | AR 36/3/500 | 5000008979 |
| External Vib. AR 26/3/230W | AR 26/3/230 W | 5000008981 |
| AR26/6/042 | AR26/6/042 | 5100003120 |
| AR 26/6/042 3,5kN | AR 26/6/042 3,5kN | 5100004048 |
| AR36/3.6/240W-EXT.VIBRATOR | AR 36/3,6/230 | 5000610225 |
| External Vibrator AR36/6/41,5 US | AR 36/6/41,5 US | 5000610373 |
| External Vib. AR36/6/41,5 S3,5 US | AR 36/6/41,5 S3,5 US | 5000610374 |
| External Vib. AR36/6/41,5 LBV US | AR 36/6/41,5 LBV US | 5000610375 |
| External Vib. AR36/6/41,5 CS US | AR 36/6/41,5 CS US | 5000610376 |
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.
