The Wacker Neuson is a genuine OEM Acorn Nut M4 designed for the BV35A-P, BV50A-P, and BV50A-H series backpack vibrators. As a factory-sourced component, it is manufactured to the exact material grade and thread specification required by these machines, ensuring a flush, secure fit without the guesswork. This part is confirmed compatible across multiple BV35A-P and BV50A-P configurations, including EU variants, as well as the BV50A-H Backpack Vibrator. When it comes to small fasteners on high-vibration equipment, using the correct OEM hardware keeps every assembly properly torqued and protected.
Key Features
- Correct M4 Thread Specification — Matches the exact thread pitch and grade required by Wacker Neuson backpack vibrator assemblies, ensuring a secure engagement without cross-threading risk.
- Domed Cap Protects Fastener End — The closed acorn profile shields the exposed thread tip from concrete slurry, moisture, and debris — common hazards on vibrator applications.
- Genuine OEM Sourcing — Supplied directly from Wacker Neuson's parts program, confirming material hardness and finish meet original design intent for this fastener position.
- Broad BV-Series Compatibility — Fits BV35A-P, BV50A-P (including SPM4+PH45 and SPM2+PH45 configurations), and BV50A-H backpack vibrators, covering both standard and EU-spec units.
- Vibration-Resistant Retention — On backpack vibrators that operate under constant oscillation, a correctly specified nut maintains clamping load and prevents loosening during extended pours.
An acorn nut — also called a cap nut — is a domed fastener that threads onto a bolt or stud to secure an assembly while simultaneously capping the exposed thread end. On backpack concrete vibrators like the BV35A-P and BV50A-P series, these nuts appear at panel, housing, and component attachment points where both a secure clamp and a finished, debris-resistant surface are needed. When an acorn nut is stripped, cracked, or missing, the fastener end is left exposed to concrete residue and corrosion, and the joint may gradually loosen under vibration — eventually allowing covers or components to shift or separate during operation.
Part Details
| Part Number | 5000174829 |
|---|---|
| Old Part Number | 0174829 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Acorn Nut M4 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BV 35A-P Backpack Vibrator | BV35A-P | 5000620398, 5000620617 |
| Backpack Vibrator | BV35A-P EU | 5000620891 |
| Backpack Vibrator | BV50A-P | 5000620399, 5000620764, 5000620767 |
| Backpack Vibrator | BV50A-P EU | 5000620892 |
| BV50A-H Backpack Vibrator | BV50A-H | 5200016908 |
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.
