The Wacker Neuson is a genuine OEM Lock Nut designed for GS12Ai, GV Series, G22, G32, and G43 portable and mobile generators. Sourced directly from Wacker Neuson, this fastener meets the exact specifications of the original hardware installed on these machines. It is compatible across a broad range of 50 Hz portable value generators as well as skid-mounted mobile generator units including the G22, G32, and G43. If you are servicing any of these generator models, part number is the correct OEM replacement to restore proper assembly integrity.
Key Features
- Genuine OEM Fastener Grade — Manufactured to the same thread specification and material hardness as the original Lock Nut, ensuring correct torque retention without stripping or backing off under vibration.
- Drop-In Installation — Matches the original thread pitch and dimensions exactly, fitting into the existing assembly without rework or additional hardware.
- Broad Generator Fitment — Confirmed for GS12Ai, GV2500A, GV5000A, GV5003A, GV7000A, GV7003A, G22, G32, and G43 generator models.
- Vibration-Resistant Locking Design — The lock nut format is specifically engineered to resist loosening caused by engine vibration during generator operation, maintaining secure clamping force over extended run time.
- Electrical Safety Assurance — In generator assemblies, improperly secured fasteners can cause component misalignment or grounding faults; using the correct OEM Lock Nut helps maintain safe, stable electrical output.
A lock nut is a fastener with a built-in resistance mechanism that prevents it from loosening under vibration and dynamic loads — conditions that are constant during generator operation. In portable and mobile generators, lock nuts are used to secure critical components including engine mounts, alternator assemblies, and electrical connection points. When a lock nut is worn, cross-threaded, or missing, the secured component can shift or become loose during operation, potentially causing misalignment, premature wear, or loss of safe electrical output. Replacing a damaged lock nut with the correct OEM part restores the clamping integrity the manufacturer designed into the assembly.
Part Details
| Part Number | 5000158554 |
|---|---|
| Old Part Number | 0158554 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| GS12Ai | GS12AI | 5000620317 |
| 50Hz Portable Value Generator | GV7003A | 5000009354, 5000009359 |
| 50Hz Portable Value Generator | GV5003A | 5000009352, 5000009357 |
| 50Hz Portable Value Generator | GV7000A | 5000009358, 5000009363 |
| 50Hz Portable Value Generator | GV2500A | 5000009355, 5000009360 |
| 50Hz Portable Value Generator | GV5000A | 5000009356 |
| Mobile Generator, Skid-mounted , 50 Hz | G22 | 5000620543 |
| Mobile Generator, Skid-mounted , 50 Hz | G32 | 5000620544 |
| Mobile Generator, Skid-mounted , 50 Hz | G43 | 5000620545 |
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.
