The Genie 77489GT is a genuine OEM Solenoid Valve, 2-Position, 3-Way built for Genie telescopic and articulating boom lifts including the S-100HD, S-120HD, SX-135 XC, SX-125 XC, and Z-80/60. As a direct OEM replacement, this valve matches the original component's porting configuration, coil voltage, and body dimensions so it installs without modification. Sourced directly from Genie, part number 77489GT is the correct specification for the models listed — cross-reference it against your machine's parts manual to confirm fitment before ordering.
Key Features
- Genuine OEM Construction — Manufactured to Genie's original specifications, ensuring correct coil rating, port sizing, and body geometry for this solenoid valve application.
- Direct OEM Replacement — this part matches the original valve's 2-position, 3-way configuration, allowing straightforward installation using existing fittings and mounting hardware.
- Broad Boom Lift Coverage — Fits select Genie telescopic boom lifts (S-100HD, S-120HD, SX-135 XC, SX-125 XC) and the Z-80/60 articulating boom lift.
- Precise Valve Switching — A correctly functioning 2-position, 3-way solenoid valve directs flow reliably between two states. A worn or failed valve causes erratic or non-responsive control behavior that interrupts machine operation.
- Operational Safety — Solenoid valves govern directional control on aerial boom lifts; an OEM-specification part helps ensure the machine responds predictably to operator commands at height.
A 2-position, 3-way solenoid valve controls the direction of fluid flow through three ports, shifting between two states when its coil is energized or de-energized. On boom lifts, this type of valve is used to route fluid to or from a specific circuit, enabling or cutting off a function in response to an electrical signal from the control system. When the valve sticks, leaks internally, or the coil fails, the function it governs may become unresponsive, operate in only one direction, or fail to hold position — any of which requires the machine to be taken out of service until the valve is replaced with a correct OEM part such as the 77489GT.
Part Details
| Part Number | 77489GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Solenoid Valve, 2-Position, 3-Way |
Compatibility & Fitment
| Name | Models |
|---|---|
| S-100HD | S-100HD |
| S-120HD | S-120HD |
| SX-125 XC | SX-125 XC |
| SX-135 XC | SX-135 XC |
| Z-80/60 | Z-80/60 |
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.
