The Wacker Neuson Locknut is a genuine OEM component designed for use across multiple Wacker Neuson equipment families, including VP-series single-direction vibratory plate compactors, PT-series centrifugal trash pumps, VPY-series diesel vibratory plates, YD and D3.5Y modular internal vibrators, and APT4S/APT4T pump units. As a factory-sourced part, the is manufactured to the exact material and dimensional specifications of the original hardware, ensuring proper torque retention and a secure connection wherever it is installed. This locknut covers a broad range of models including the VP2050Y, PT2Y, PT3Y, VPY1740, VPY1750, and APT4S/APT4T pump variants — making it a highly versatile service item to have on hand. Confirming the against your machine's serial number and parts manual before ordering is always recommended.
Key Features
- Genuine OEM Thread Integrity — Manufactured to Wacker Neuson's exact thread pitch and hardness specifications, delivering the clamping force and vibration resistance this locknut is engineered to provide.
- Direct Drop-In Hardware — Matches the original fastener geometry for straightforward installation without reworking mating threads or adjacent components.
- Broad Cross-Family Fitment — Confirmed for VP-series vibratory plate compactors, PT-series trash pumps, VPY diesel vibratory plates, modular internal vibrators, and APT4S/APT4T pump assemblies.
- Vibration-Resistant Locking Action — The locknut's locking feature prevents loosening under the sustained vibration and load cycling common to compaction and pumping equipment.
- Single Part Number, Multiple Applications — Stocking one 5000073638 covers service needs across several distinct Wacker Neuson equipment lines, simplifying parts inventory management.
A locknut is a fastener designed to resist self-loosening when exposed to vibration, dynamic loads, or repeated thermal cycling. Unlike a standard hex nut, a locknut incorporates a mechanism — such as a nylon insert, a distorted thread profile, or a prevailing-torque design — that maintains clamping force even as the assembly is subjected to continuous movement or stress. In compaction and pumping equipment, where vibration is a constant operating condition, locknuts play a critical role in keeping structural and mechanical connections secure. A worn, damaged, or missing locknut can allow adjacent components to shift, leading to accelerated wear, misalignment, or fastener failure that can take a machine out of service.
Part Details
| Part Number | 5000073638 |
|---|---|
| Old Part Number | 0073638 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Locknut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Direction Plate | VPY70 | 5000007001 |
| 50mm/2in Centrifugal Trash Pum p | PT2Y | 5000007117 |
| 75mm/3in Centrifugal Trash Pum p | PT3Y | 5000007118, 5000007119 |
| Diesel Vibratory Plate | VPY1740 | 5000007126, 5000009082 |
| Diesel Vibratory Plate | VPY1750 | 5000007127, 5000009081 |
| Value Vibratory Plate, 20 kN, 500mm/19.5in | VP2050Y | 5000009089, 5000009515, 5000009090 |
| Modular Internal Vibrators | YD 3.5 | 5000007003 |
| Modular Internal Vibrators | D3.5Y2 | 5100072404 |
| Modular Internal Vibrators | D3.5Y3 | 5100072406 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
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.
