The Wacker Neuson is a genuine OEM Nut 3/8-24 Hex Jam Stainless designed for G25 portable generators and PTK3 centrifugal trash pump kits. Sourced directly from Wacker Neuson, this fastener meets the original equipment specification for thread pitch, material grade, and corrosion resistance. Confirmed fitment spans multiple G25 generator configurations — including Custom and Custom T4i variants — as well as the PTK3 75mm/3-inch centrifugal trash pump kit.
Key Features
- Stainless Steel Construction — Marine-grade stainless material resists corrosion and oxidation in wet, outdoor, or high-humidity operating environments typical of generators and pump equipment.
- Correct 3/8-24 Fine-Thread Specification — Fine-thread pitch ensures proper torque engagement and secure locking when installed against mating fasteners or shafts on original Wacker Neuson hardware.
- Genuine OEM Part — Manufactured to the exact Wacker Neuson specification, ensuring the nut matches the original dimensional and material requirements without substitution guesswork.
- Broad G25 and PTK3 Coverage — Fits multiple G25 generator configurations including Custom and Custom T4i models, as well as the PTK3 3-inch centrifugal trash pump kit, making it a versatile service stock item.
- Low-Profile Jam Nut Design — The hex jam profile allows use in tight or stacked-fastener installations where a full-height nut would not seat correctly, preserving the integrity of the original assembly layout.
A hex jam nut is a thin, low-profile nut used to lock a standard nut or fastener in place, preventing it from backing off under vibration or dynamic load. On equipment like portable generators and trash pumps — which operate under continuous vibration and variable mechanical stress — jam nuts are critical to keeping assemblies secure over time. When a jam nut is worn, corroded, or missing, the primary fastener can loosen, leading to misalignment, leaks, or component failure that interrupts operation.
Part Details
| Part Number | 5000077809 |
|---|---|
| Old Part Number | 0077809 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Nut 3/8-24 Hex Jam Stainless |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator, Custom | G25 | 5000620346, 5000620642, 5200014461, 5100042509, 5100025836 |
| 75mm/3in Centrifugal Trash Pum p Kit (without engin | PTK3 | 5000006747 |
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.
Wacker Neuson
Wacker Neuson Part # 1000343416 - Nut 3/8-24 hex jam zinc - Genuine OEM Part
