The Genie 990390GT is a genuine OEM Nylock Nut, 1/2-13 built for the Genie RL4 light tower. As a factory-sourced part, it matches the exact thread specification and locking insert grade used in original assembly, ensuring it seats and torques correctly without substitution. Sourced directly through DHS Equipment, this nut is the right call when the original fastener is stripped, lost, or damaged during service.
Key Features
- Correct Thread Specification — 1/2-13 thread size matches the original fastener exactly, so the nut installs without chasing threads or forcing fitment.
- Nylon Locking Insert — the integrated nylon collar grips the mating fastener under vibration and load, maintaining clamp force without additional locking hardware.
- Genuine OEM Quality — manufactured to Genie's original material and dimensional standards, not a generic fastener sourced to approximate spec.
- Direct RL4 Fitment — confirmed for the Genie RL4 light tower; cross-reference part number 990390GT against your machine's parts manual before ordering.
- Simple Service Part — a straightforward replacement that keeps structural and mechanical connections properly secured during operation.
A nylock nut uses a nylon insert at the top of the nut to create friction against the bolt thread, preventing the nut from loosening due to vibration or repeated movement. On light tower equipment like the RL4, fasteners in structural, mechanical, and panel connections are exposed to engine vibration and road movement during towing — conditions that can work a standard nut loose over time. A worn, stripped, or missing nylock nut compromises joint integrity and should be replaced with the correct size and grade to restore a secure, lasting connection.
Part Details
| Part Number | 990390GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Nylock Nut, 1/2-13 |
Compatibility & Fitment
| Name | Model |
|---|---|
| RL4 | RL4 |
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.
