The Wacker Neuson Jam Nut M12 Brass is a genuine OEM component designed for the G100 and G120 mobile generator series. As a direct factory replacement, this brass M12 jam nut meets the same material and dimensional standards as the original hardware installed at the time of manufacture. It is compatible across a wide range of G100 and G120 generator configurations, including cold weather, Hertz, and Tier 4i variants. Keep part number on hand for scheduled maintenance or field repairs to ensure a proper, lasting fit.
Key Features
- Genuine OEM Brass Construction — Manufactured to Wacker Neuson's original material specification, brass provides the corrosion resistance and thread integrity required for secure, long-term fastening in generator applications.
- M12 Thread Compatibility — Sized to match M12 threaded hardware exactly, this jam nut threads on without rework and locks firmly against mating fasteners or components as originally designed.
- Broad Generator Series Coverage — Fits G100 and G120 mobile generators across standard, cold weather, Hertz, Tier 4i, and Transport Canada configurations, covering a large portion of the Wacker Neuson portable generator lineup.
- Locking Function Preserved — A correctly installed jam nut prevents loosening under vibration; a worn, stripped, or incorrect nut can allow critical fastened components to shift or come free during operation.
- Direct OEM Source — Sourced directly from Wacker Neuson, part number 5200000319 is the same component used in original assembly — no guesswork on sizing or grade.
A jam nut is a thin, low-profile nut threaded onto a bolt or stud and tightened against a primary nut or component to prevent unwanted rotation or loosening. On mobile generators like the G100 and G120, hardware is exposed to continuous engine vibration, making the locking function of a jam nut essential to keeping assemblies secure. When a jam nut is stripped, corroded, or missing, the primary fastener can back off over time, potentially causing misalignment or component failure.
Part Details
| Part Number | 5200000319 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Jam Nut M12 Brass |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| G100-GENERATOR, SKID, CUSTOM, DEERE T3 | G100 | 5000620651, 5000620650, 5200001319, 5000620649, 5200003158, 5200006900, 5200008716, 5200008348, 5200008346, 5200008347, 5200008345, 5100025816 |
| G120-GENERATOR, SKID, CUSTOM, DEERE T3 | G120 | 5000620654, 5000620653, 5200001320, 5000620652, 5200006901, 5200003159, 5200008715, 5200008353, 5200008350, 5200008351, 5200008349, 5100025818 |
| Mobile Generator | G70 | 5200008344 |
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.
