The Genie 1259931GT Lug Nut, 3/4-16 x 7/8 Radius, ZA is a genuine OEM fastener built for Genie S series telescopic boom lifts, SX series super-boom lifts, and Z and ZX series articulating boom lifts. As a direct OEM replacement, this lug nut is manufactured to the same specifications as the original hardware — ensuring correct thread engagement, seating geometry, and clamping force. Verify part number 1259931GT against your machine's parts manual to confirm it is the right fastener for your unit before ordering.
Key Features
- OEM-Grade Zinc-Alloy (ZA) Finish — The zinc alloy coating provides corrosion resistance appropriate for the outdoor and variable-weather environments these boom lifts operate in, helping the fastener maintain its integrity over repeated wheel service cycles.
- Exact Thread and Seat Specification — The 3/4-16 thread pitch and 7/8 radius seat geometry match the original hardware exactly, allowing the nut to seat flush and torque correctly without modification or adaptation.
- Direct OEM Replacement — Sourced directly from Genie, this lug nut replaces the original fastener on covered models with no guesswork on fitment.
- Broad Boom-Lift Fitment — Compatible with a wide range of Genie S, SX, Z, and ZX series boom lifts, including the SX-135 XC, SX-180, S-85 XC, S-80 HF, ZX-135/70, and Z-80/60, among others.
- Wheel Security Is a Safety-Critical Function — A lug nut that is worn, cross-threaded, or of an incorrect specification cannot develop the clamping load needed to keep a wheel secured during travel and operation. Using the correct OEM fastener is essential on self-propelled aerial equipment.
A lug nut secures a wheel to the hub by clamping the wheel against the brake drum or rotor flange when torqued to specification. The radius seat on this nut is designed to mate precisely with the corresponding seat angle machined into the wheel, distributing clamping load evenly and preventing loosening under vibration and load cycling. A lug nut that is damaged, stretched, or of an incorrect thread pitch or seat radius will not torque properly and can allow wheel movement — making correct part selection and proper installation torque critical on any self-propelled machine.
Part Details
| Part Number | 1259931GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Lug Nut, 3/4-16 x 7/8 Radius, ZA |
Compatibility & Fitment
| Name | Model |
|---|---|
| SX-150 | SX-150 |
| SX-180 | SX-180 |
| SX-135 XC | SX-135 XC |
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| SX-105 XC | SX-105 XC |
| SX-125 XC | SX-125 XC |
| ZX-135/70 | ZX-135/70 |
| Z-80/60 | Z-80/60 |
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.
