The Wacker Neuson is a genuine OEM Lock Washer M8 designed for the BV35A-P, BV50A-P, and BV50A-H series backpack concrete vibrators. As a certified genuine OEM component, this lock washer meets the exact material and dimensional standards specified for these machines, ensuring hardware joints stay torqued and secure under the continuous vibration loads these units generate. The fits across multiple BV-series configurations, including EU variants, making it a reliable go-to fastener part for technicians servicing the full BV35A-P and BV50A-P/H backpack vibrator lineup.
Key Features
- Vibration-Rated Locking Geometry — The M8 lock washer profile is engineered to resist loosening under the sustained high-frequency vibration that backpack concrete vibrators produce during operation.
- Genuine OEM Hardware Grade — Sourced directly from Wacker Neuson, this part matches the original material specification and surface treatment used at the factory, so you know the hardness and bite characteristics are correct for the application.
- Drop-In M8 Fitment — Sized to seat directly on M8 fastener assemblies as originally installed, requiring no modification to the mating bolt or mounting surface.
- Broad BV-Series Coverage — A single part number covers the BV35A-P, BV50A-P (including SPM2 and SPM4 configurations), and BV50A-H backpack vibrators, as well as EU market variants, simplifying parts inventory for multi-unit fleets.
- Structural Integrity at Every Service Interval — Replacing worn or deformed lock washers at each service keeps critical fastened joints clamped correctly, preventing bolt migration that can lead to housing movement or component misalignment over time.
A lock washer is a hardened fastening component that sits beneath a bolt head or nut to prevent the fastener from working loose under vibration or dynamic loads. In backpack concrete vibrators like the BV35A-P and BV50A series, where the drive motor and flexible shaft assembly are subject to continuous oscillation, maintaining proper clamp force on key fastened joints is essential to keeping the unit intact and performing correctly. When a lock washer becomes flattened, corroded, or deformed, it loses its ability to resist rotation, and fasteners can gradually back out — leading to loose assemblies, increased wear on mating parts, or more significant mechanical failures if left unaddressed.
Part Details
| Part Number | 5000174805 |
|---|---|
| Old Part Number | 0174805 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer M8 |
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, 5100041314 |
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.
