The Genie 77309GT is a genuine OEM Bulkhead Nut, 520118-8 built for Genie SX telescopic boom lifts, Z articulating boom lifts, and GTH telehandlers. As a direct OEM replacement, this nut is manufactured to the same specifications as the original hardware installed at the factory, ensuring a correct fit across compatible machines. Cross-reference part number 77309GT against your machine's parts manual to confirm it is the right component for your unit before ordering. Confirmed fitment includes the SX-150, SX-180, SX-135 XC, GTH-636, GTH-844, Z-51/30J, and Z-45 XC.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Genie's original dimensional and material standards for a bulkhead nut, ensuring consistent thread engagement and clamping integrity at the panel or bulkhead interface.
- Direct OEM Replacement — This nut installs exactly as the original, with no rework or modification needed at the mounting point it secures.
- Broad Genie Equipment Fitment — Confirmed for Genie SX super-boom telescopic lifts, Z articulating booms, and GTH telehandlers, covering multiple equipment families from a single part number.
- Secure Bulkhead Connection — A correctly fitted bulkhead nut locks a fitting or line securely through a panel, preventing movement or loosening that could compromise the connection it holds.
- Verified Part Number — Always confirm 77309GT against your Genie parts manual before ordering to ensure this is the correct specification for your machine's serial number and configuration.
A bulkhead nut is a hardware fastener used to clamp a fitting or connector securely through a panel, plate, or bulkhead on the machine. It draws the fitting tight against the panel surface, holding it in a fixed position so the connection remains stable during operation and does not rotate or back out over time. When a bulkhead nut becomes worn, damaged, or lost, the fitting it holds can shift or loosen, disrupting the connection at that point and potentially causing fluid loss or an unsecured line. Replacing it with the correct OEM part restores a secure, properly seated connection at the bulkhead.
Part Details
| Part Number | 77309GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Bulkhead Nut, 520118-8 |
Compatibility & Fitment
| Name | Models |
|---|---|
| GTH-636 | GTH-636 |
| GTH-844 | GTH-844 |
| SX-135 XC | SX-135 XC |
| SX-150 | SX-150 |
| SX-180 | SX-180 |
| Z-45 XC | Z-45 XC |
| Z-51/30J | Z-51/30J |
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.
