The Genie 56338GT is a genuine OEM Torque Hub 47:1 W1 "B" Mount designed for Genie GS scissor lifts and Z-series articulating boom lifts. Sourced directly from Genie, this drive component delivers the exact gear ratio and mounting configuration required by these machines, ensuring a correct, direct installation without guesswork. This hub is confirmed to fit models including GS-3390, GS-4390, GS-5390, Z-34/22 N, Z-34/22 DC, Z-34/22 Bi-Energy, Z-45/22, Z-45/25, Z-45/25J IC Power, Z-45/25J DC, Z-45/25J Bi-Energy, Z-34 IC, Z-30/20 N, and Z-30/20N RJ. When a drive hub wears or fails, restoring it with the correct OEM-specified unit keeps your machine performing as Genie engineered it to.
Key Features
- Genuine OEM Gear Ratio Accuracy — Built to the exact 47:1 reduction ratio specified by Genie, preserving the drive torque and travel performance these machines depend on.
- W1 "B" Mount Configuration — The correct mount style for direct bolt-on installation on compatible GS and Z-series drive systems, matching the original interface without adaptation.
- Broad Fitment Across GS and Z Families — Fits Genie GS large-platform scissor lifts (GS-3390, GS-4390, GS-5390) and multiple Z-series articulating boom configurations including Bi-Energy, DC, and IC Power variants.
- Restores Full Drive Performance — A worn or failed torque hub leads to loss of drive power, uneven wheel torque, or complete wheel-end failure; replacing with this unit restores proper traction and maneuverability.
- Operational Safety at Elevation — Drive system integrity is critical on aerial work platforms; using the correct OEM hub ensures the machine's travel and positioning functions operate within Genie's engineered safety parameters.
- Cross-Reference Against Your Parts Manual — Verify part number 56338GT against your machine's parts manual or serial number plate to confirm this is the correct hub for your specific unit before ordering.
A torque hub is a compact planetary gear reduction unit mounted at the wheel end of a drive axle. It multiplies the torque output from the drive motor before it reaches the wheel, giving the machine the pulling and pushing power needed to travel across job sites — including grades and uneven surfaces. At a 47:1 reduction ratio, this hub significantly increases wheel torque while reducing output speed, which is the correct balance for the controlled, low-speed travel expected of scissor lifts and articulating boom lifts. When this component fails — through seal leakage, gear wear, or bearing damage — the machine may lose drive capability at one or more wheels, reducing maneuverability and creating unsafe operating conditions at height.
Part Details
| Part Number | 56338GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Torque Hub 47:1 W1 "B" Mount |
Compatibility & Fitment
| Name | Model |
|---|---|
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| Z-34/22 N | Z-34/22 N |
| Z-34/22 DC | Z-34/22 DC |
| Z-34/22 Bi-Energy | Z-34/22 Bi-Energy |
| Z-45/22 | Z-45/22 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| 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-34 IC | Z-34 IC |
| Z-30/20 N | Z-30/20 N |
| Z-30/20N RJ | Z-30/20N RJ |
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.
