The Genie 42758GT is a genuine OEM Union Tee, 520401-4 built for Genie GS scissor lifts and TZ and TMZ trailer-mounted articulating booms. As an authorized OEM component, this part meets the exact dimensional and material standards set by Genie, ensuring a correct, trouble-free installation. Compatible models include the GS-2668 RT, GS-3268 RT, GS-2668 DC, GS-3268 DC, GS-3390, GS-4390, GS-5390, GS-3384, TZ-50/30, TZ-34/20, TZ-50, TMZ-50/30, and TMZ-17/10. Cross-reference part number 42758GT against your machine's parts manual to confirm it is the correct item for your specific unit before ordering.
Key Features
- Genuine OEM Dimensional Conformity — Manufactured to Genie's exact material and dimensional specifications for a consistent, repeatable installation every time.
- Direct Drop-In Replacement — Matches the original union tee's port sizing and thread form, so installation requires no rework or adaptation of surrounding lines.
- Broad Genie Compatibility — Fits a wide range of Genie GS rough-terrain and electric scissor lifts as well as TZ and TMZ trailer-mounted articulating booms.
- Leak-Free Fluid Routing — A sound union tee maintains a positive, sealed junction between three fluid lines; a cracked or failing fitting allows fluid loss that disrupts machine operation.
- OEM Part Number Traceability — Carries Genie part number 42758GT for straightforward cross-referencing against your parts manual and service records.
A union tee is a three-way fitting that joins fluid lines at a single junction point, allowing fluid to be routed in two directions from one source line. It provides a removable, serviceable connection — unlike a fixed or brazed fitting — so the lines can be disconnected and reconnected without cutting or replacing the entire run. When a union tee cracks, corrodes, or develops a poor seal at its threads or seats, the junction will weep or leak fluid, reducing pressure in the circuit it serves and potentially causing erratic or reduced machine function. Replacing a worn union tee with the correct Genie OEM part restores a clean, pressure-tight junction and returns the machine to proper working order.
Part Details
| Part Number | 42758GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Union Tee, 520401-4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| GS-2668 RT | GS-2668 RT |
| GS-3268 RT | GS-3268 RT |
| GS-2668 DC | GS-2668 DC |
| GS-3268 DC | GS-3268 DC |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| GS-3384 | GS-3384 |
| TZ-50/30 | TZ-50/30 |
| TZ-34/20 | TZ-34/20 |
| TZ-50 | TZ-50 |
| TMZ-50/30 | TMZ-50/30 |
| TMZ-17/10 | TMZ-17/10 |
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.
