The Wacker Neuson Locknut is a genuine OEM fastener designed for use across a wide range of Wacker Neuson equipment, including DS720 diesel rammers, PT2Y and PT3Y centrifugal trash pumps, VP and VPY series diesel vibratory plates, and RD7 tandem rollers. As a factory-sourced component, it is manufactured to the exact specifications required for secure, vibration-resistant fastening in demanding construction environments. This locknut is a direct drop-in replacement, ensuring correct thread engagement and torque retention without the need for any modification. Keeping this fastener in serviceable condition is essential to maintaining the structural integrity and safe operation of the equipment it secures.
Key Features
- Genuine OEM Thread Specification — Manufactured to Wacker Neuson's exact thread pitch and hardness ratings, ensuring the locknut engages correctly and holds secure torque under sustained vibration loads.
- Direct-Fit Replacement — Matches the original fastener profile for straightforward installation on all listed equipment; no chasing threads or sourcing adapters required.
- Broad Equipment Compatibility — Fits DS720 diesel rammers, PT2Y and PT3Y trash pumps, VP and VPY diesel vibratory plates, and RD7 series walk-behind tandem rollers — a single part number covering multiple machine families.
- Vibration-Resistant Locking Design — The locking feature prevents loosening caused by the continuous vibration inherent to compaction and pumping equipment, maintaining joint integrity over extended service intervals.
- Structural Safety Application — Used in fastening applications across machine frames, drive assemblies, and fluid system connections where a loosened fastener can lead to equipment damage or operator hazard; correct replacement with a genuine locknut is critical.
A locknut is a threaded fastener engineered to resist self-loosening under vibration, shock, and dynamic loads — conditions that are constant across compaction equipment, trash pumps, and rollers. Unlike a standard nut, it incorporates a locking mechanism — typically a nylon insert or a deformed thread profile — that creates additional friction and prevents the nut from backing off during operation. When a locknut fails or is replaced with an incorrect fastener, critical joints can loosen progressively, leading to component misalignment, accelerated wear, fluid leaks, or catastrophic fastener failure. Using the correct OEM-specified locknut ensures the joint maintains the clamping force the machine was designed around.
Part Details
| Part Number | 5000073790 |
|---|---|
| Old Part Number | 0073790 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Locknut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Diesel Vibratory Rammer, 330mm /13in Shoe | DS720 | 5000008203 |
| 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, 5000009090 |
| RD7Yehf HRC | RD7Yehf HRC | 5100006337, 5100006341 |
| RD7Yeh HRC | RD7Yeh HRC | 5100006336, 5100006467 |
| RD7Yehfb HRC | RD7Yehfb HRC | 5100006346 |
| DS70Y 13" | DS70Y 13in | 5100030612 |
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.
