The Genie 121421GT is a genuine OEM Flange Nut, 1/4-20 built for Genie S and Z series boom lifts, including the S-80X, S-80, S-85, S-85 XC, Z-60/34, and Z-80/60. As a factory-sourced fastener, this part matches the exact thread specification and dimensional tolerancing Genie engineers to the original design. Cross-reference part number 121421GT against your machine's parts manual to confirm it is the correct fastener for your application before ordering.
Key Features
- Integrated Flange for Secure Clamping — The built-in flange distributes clamping load across a wider bearing surface, reducing the risk of loosening under vibration without the need for a separate washer.
- Exact 1/4-20 Thread Fit — The 1/4-20 thread specification ensures direct engagement with the mating fastener or threaded component it was designed to secure, with no reworking required.
- Broad Compatibility Across Genie Boom Lifts — Fits S-80X, S-80, S-85, S-85 XC telescopic booms and Z-60/34, Z-80/60 articulating booms, covering a wide range of Genie aerial lift equipment.
- Structural Integrity Where It Counts — A fastener that has stripped threads or has backed off under load can compromise the assembly it holds. Replacing it with the correct OEM part restores secure, rated clamping at that joint.
A flange nut combines a standard nut with an integral washer-like flange at its base, which spreads the clamping force over a larger area than a plain nut alone. This design helps resist loosening caused by vibration — a common condition on mobile aerial lift equipment — and protects the mating surface from damage. When a flange nut strips, corrodes, or backs off, the joint it secures loses clamping load, which can allow movement or misalignment in the connected components. Replacing a worn or damaged nut with the correct Genie OEM part restores the assembly to its intended clamping specification.
Part Details
| Part Number | 121421GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Flange Nut, 1/4-20 |
Compatibility & Fitment
| Name | Models |
|---|---|
| S-80 | S-80 |
| S-80X | S-80X |
| S-85 | S-85 |
| S-85 XC | S-85 XC |
| Z-60/34 | Z-60/34 |
| 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.
