The Genie 128304GT is a genuine OEM Extension Boom Weldment designed for Z-45/25 and Z-45/25J series articulating boom lifts, including DC, Bi-Energy, IC Power, and IC variants, as well as the Z-51/30J. Sourced directly through the Genie OEM supply chain, this weldment is manufactured to the same standards as the original component installed at the factory. Cross-reference part number 128304GT against your machine's parts manual to confirm fitment before ordering. For operators running Z-series articulating booms, using the correct structural replacement is essential to keeping the jib extension performing as designed.
Key Features
- Genuine OEM Structural Integrity — Manufactured to original design tolerances, ensuring the weldment maintains the load-bearing geometry required for safe jib extension operation.
- Direct Replacement Fit — Engineered to mount to the existing boom structure with the same attachment points and profile as the original, supporting a straightforward swap during scheduled maintenance or repair.
- Broad Z-Series Compatibility — Fits multiple Z-45/25J variants — including DC, Bi-Energy, IC Power, and IC Power configurations — as well as the Z-45/25 and Z-51/30J articulating booms.
- Restored Jib Extension Performance — A damaged or fatigued weldment compromises boom reach and positioning accuracy; this replacement restores the full articulating range the machine was designed to deliver.
- Safety-Critical Structural Component — On aerial work platforms, structural boom weldments are directly tied to platform stability and load capacity — using a genuine OEM part ensures compliance with the machine's original engineering specifications.
The extension boom weldment is the fabricated structural assembly that forms the jib section of an articulating boom lift — the outermost telescoping or fixed arm that provides additional horizontal reach beyond the main boom. It bears the combined stress of platform loading, dynamic movement, and repeated articulation cycles throughout the machine's service life. When a weldment develops cracks, deformation, or corrosion fatigue, the structural integrity of the entire boom system is compromised, and the machine should be taken out of service until the component is replaced with a part that meets the original design specification.
Part Details
| Part Number | 128304GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Extension Boom Weldment, Z45 Jib |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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-45/25J IC Power | Z-45/25J IC Power |
| Z-45/25 IC | Z-45/25 IC |
| Z-51/30J | Z-51/30J |
| Z-45/25J IC | Z-45/25J IC |
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.
