The Genie 139865GT is a genuine OEM Hex Head Cap Screw designed for Genie S-series telescopic boom lifts and Z-series articulating boom lifts. As a direct OEM replacement, this screw is manufactured to the same specifications as the original hardware, ensuring correct thread engagement, head dimensions, and grade rating. Cross-reference part number 139865GT against your machine's parts manual to confirm it is the correct fastener for your application. This screw fits a wide range of Genie boom lift variants, including S-60, S-65, and Z-45/25 models in multiple configurations.
Key Features
- Grade 8 Strength — Rated at Grade 8 for high tensile strength, this screw is built to handle the structural load demands of Genie boom lift assemblies without stretching or shearing under stress.
- Exact OEM Thread Specification — Cut to a 5/8-11 thread pitch and 4.00-inch length, this fastener installs directly in place of the original without re-tapping or modification to the mating components.
- Broad Boom Lift Compatibility — Fits Genie S-series telescopic boom lifts and Z-series articulating boom lifts across multiple configurations, including XC, TRAX, HC, DC, Bi-Energy, IC, and RJ variants.
- Genuine OEM Part — Supplied by Genie as an authorized OEM component, this screw meets dimensional and material standards set for the original hardware, preserving the integrity of the assembly it secures.
- Structural Integrity Where It Counts — A worn, stripped, or incorrect-grade fastener in a boom lift assembly can compromise structural connections. Replacing with the correct Grade 8 OEM screw restores the joint to its designed clamping specification.
A Hex Head Cap Screw is a structural fastener used to clamp or bolt machine components together, with a six-sided head designed for use with a wrench or socket for high-torque installation. The Grade 8 rating indicates a high-strength alloy steel construction capable of sustaining significant clamping force without yielding — making it appropriate for load-bearing joints on aerial equipment. When a fastener of this type fails, stretches, or is replaced with an incorrect grade, the clamped joint can loosen or separate, affecting the structural reliability of the assembly. Using the correct OEM-specified fastener ensures the joint performs as the machine was engineered to operate.
Part Details
| Part Number | 139865GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Cap Screw, 5/8-11 x 4.00 GR8 BO |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-60 | S-60 |
| S-65 | S-65 |
| S-60X | S-60X |
| S-60 XC | S-60 XC |
| S-60 HC | S-60 HC |
| S-60 TRAX | S-60 TRAX |
| S-65 TRAX | S-65 TRAX |
| Z-45/25 | Z-45/25 |
| Z-45/25J DC | Z-45/25J DC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| Z-40/23N | Z-40/23N |
| Z-40/23N RJ | Z-40/23N RJ |
| Z-62/40 | Z-62/40 |
| Z-45/25 IC | Z-45/25 IC |
| Z-51/30J | Z-51/30J |
| Z-45/25J IC | Z-45/25J IC |
| Z-45/25J IC Power | Z-45/25J IC Power |
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.
