The Genie 1256439GT is a genuine OEM TFAAS Track Trolley designed for Genie telescopic and articulating boom lifts across the S, SX, and Z series. Sourced directly from Genie, this component carries the same specifications as the original part installed at the factory, ensuring a direct, hassle-free replacement. The TFAAS Track Trolley fits an extensive range of models — including S-60 XC, S-85, SX-135 XC, SX-180, Z-45/25J Bi-Energy, Z-62/40, and ZX-135/70 — making it one of the most broadly compatible trolley assemblies in the Genie boom lift lineup. Cross-reference part number 1256439GT against your machine's parts manual before ordering to confirm fitment for your specific serial range.
Key Features
- Genuine OEM Construction — Manufactured to Genie's original design tolerances, ensuring the trolley rides the track channel with the correct clearance and load rating for safe, consistent movement.
- Direct Drop-In Replacement — Engineered to match the original mounting points and track interface on Genie boom lift platforms, so installation follows the standard service procedure without improvisation.
- Broad Boom Lift Compatibility — Fits a wide range of Genie telescopic booms (S and SX series) and articulating booms (Z and ZX series), from the S-40 through the SX-180 and Z-45/25 through the Z-135/70.
- Smooth, Controlled Track Travel — A properly functioning trolley maintains correct alignment and movement along the TFAAS track system; a worn or damaged trolley can cause binding, uneven travel, and increased stress on surrounding components.
- Platform System Integrity — On aerial boom lifts, the TFAAS track trolley is a structural element of the platform leveling and positioning system; using a correctly rated OEM part is essential to maintaining safe platform operation at height.
The TFAAS (Turntable-Mounted Fold-Away Aerial System) track trolley is the sliding interface component that rides within the boom's track channel, guiding controlled movement of the associated platform or auxiliary system along a fixed path. It bears both the load and the directional forces generated during boom articulation and extension, keeping the system aligned through the full range of machine motion. When the trolley wears, cracks, or fails, the track system can develop play or bind entirely — disrupting smooth operation and placing abnormal stress on adjacent hardware that can accelerate further damage.
Part Details
| Part Number | 1256439GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | TFAAS Track Trolley |
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 |
| SX-150 | SX-150 |
| S-65 XC | S-65 XC |
| S-60 HF | S-60 HF |
| S-65 HF | S-65 HF |
| SX-180 | SX-180 |
| SX-135 XC | SX-135 XC |
| S-40 | S-40 |
| S-45 | S-45 |
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| S-40 XC | S-40 XC |
| S-45 XC | S-45 XC |
| S-40 TRAX | S-40 TRAX |
| S-45 TRAX | S-45 TRAX |
| S-40 HF | S-40 HF |
| S-45 HF | S-45 HF |
| SX-125 XC | SX-125 XC |
| S-120 | S-120 |
| S-125 | S-125 |
| S-100 | S-100 |
| S-105 | S-105 |
| Z-60/34 | Z-60/34 |
| Z-135/70 | Z-135/70 |
| Z-45/25 | Z-45/25 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-45/25J DC | Z-45/25J DC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| Z-51/30J | Z-51/30J |
| Z-62/40 | Z-62/40 |
| ZX-135/70 | ZX-135/70 |
| Z-80/60 | Z-80/60 |
| Z-45 XC | Z-45 XC |
| Z-45 FE Hybrid | Z-45 FE Hybrid |
| Z-45 DC | Z-45 DC |
| Z-45/25 IC | Z-45/25 IC |
| 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.
