The Genie 1274166GT is a genuine OEM Nylock Nut, 3/8-16, C, ZAG built for a broad range of Genie equipment, including GS scissor lifts, S and Z series boom lifts, GTH telehandlers, TZ trailer-mounted booms, and RL vertical mast units. As a genuine OEM part, it is manufactured to the same specifications as the hardware originally installed at the factory, ensuring the correct thread engagement, locking performance, and finish for each application. Verify part number 1274166GT against your machine's parts manual to confirm it is the right fastener for your specific unit before ordering.
Key Features
- Genuine OEM Construction — Zinc and chromate-finished steel with the correct nylon locking insert, matched to Genie's original hardware specification for this thread size and grade.
- Exact Thread Fit — 3/8-16 UNC threading installs directly onto existing fastener points without modification, maintaining proper clamp load and torque value.
- Broad Genie Compatibility — Fits GS scissor lifts, S and Z series boom lifts, GTH telehandlers, TZ trailer-mounted booms, and RL vertical mast units across numerous configurations and model years.
- Secure Locking Performance — The nylon insert grips the mating thread and resists loosening under vibration, keeping critical fastened joints secure through demanding duty cycles.
- Direct OEM Sourcing — Supplied as a genuine Genie replacement part, so the grade, finish, and dimensional tolerances match the original hardware exactly.
A Nylock nut uses a nylon collar bonded inside the nut body to create friction against the bolt thread when the nut is driven home. This friction resists self-loosening caused by vibration and dynamic loading — conditions common across aerial lifts, telehandlers, and vertical mast units during travel and operation. A nut that has lost its locking effectiveness, is cross-threaded, or is missing entirely allows the fastened joint to work loose over time, which can compromise the integrity of the assembly it secures. Replacing a damaged or worn fastener with the correct OEM part restores the intended clamping force and locking resistance for that joint.
Part Details
| Part Number | 1274166GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Nylock Nut, 3/8-16, C, ZAG |
Compatibility & Fitment
| Name | Model |
|---|---|
| RL4 Vertical Mast | RL4 Vertical Mast |
| RL4 LED Vertical Mast | RL4 LED Vertical Mast |
| S-60 XC | S-60 XC |
| S-65 XC | S-65 XC |
| S-60 HF | S-60 HF |
| S-65 HF | S-65 HF |
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| S-40 XC | S-40 XC |
| S-45 XC | S-45 XC |
| S-40 TRAX | S-40 TRAX |
| S-45 TRAX | S-45 TRAX |
| S-40 HF | S-40 HF |
| S-45 HF | S-45 HF |
| S-60 J | S-60 J |
| S-80 J | S-80 J |
| S-60 FE Hybrid | S-60 FE Hybrid |
| S-60 DC | S-60 DC |
| S-60 FE | S-60 FE |
| S-85 XC FE | S-85 XC FE |
| S-85 XC E | S-85 XC E |
| GS-2669BE | GS-2669BE |
| GS-3369BE | GS-3369BE |
| GS-4069BE | GS-4069BE |
| GS-1530 | GS-1530 |
| GS-1532 | GS-1532 |
| GS-1930 | GS-1930 |
| GS-1932 | GS-1932 |
| GS-2669RT | GS-2669RT |
| GS-3369RT | GS-3369RT |
| GS-4069RT | GS-4069RT |
| GS-1330m | GS-1330m |
| GS-4655 | GS-4655 |
| GS-2046 | GS-2046 |
| GS-2646 | GS-2646 |
| GS-3246 | GS-3246 |
| GS-4046 | GS-4046 |
| GS-2032 | GS-2032 |
| GS-2632 | GS-2632 |
| GS-3232 | GS-3232 |
| GS-1332m | GS-1332m |
| GS-1432m | GS-1432m |
| GS-1932m | GS-1932m |
| GS-2669DC | GS-2669DC |
| GS-3369DC | GS-3369DC |
| GS-4069DC | GS-4069DC |
| GTH-636 | GTH-636 |
| GTH-844 | GTH-844 |
| GTH-1056 | GTH-1056 |
| GTH-1044 | GTH-1044 |
| GTH-1244 | GTH-1244 |
| GTH-1544 | GTH-1544 |
| TZ-34/20 | TZ-34/20 |
| TZ-50/30 | TZ-50/30 |
| Z-62/40 | Z-62/40 |
| Z-80/60 | Z-80/60 |
| Z-45 XC | Z-45 XC |
| Z-45/25J DC | Z-45/25J DC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| Z-60 DC | Z-60 DC |
| Z-60 FE Hybrid | Z-60 FE Hybrid |
| Z-45/25 | Z-45/25 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-60/37 DC | Z-60/37 DC |
| Z-60/37 FE Hybrid | Z-60/37 FE Hybrid |
| Z-51/30J | Z-51/30J |
| Z-60 FE | Z-60 FE |
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.
