The Genie 107788GT is a genuine OEM Proportional 3-Position 4-Way Valve built for Genie SX telescopic boom lifts and Z articulating boom lifts. As a direct OEM replacement, this valve matches the original specification and installs without modification into the valve circuit it serves. Compatible models include the SX-150, SX-180, SX-135 XC, Z-135/70, ZX-135/70, Z-45 XC, Z-33 DC Power, and Z33/18, among others — confirm part number 107788GT against your machine's parts manual before ordering.
Key Features
- Genuine OEM Valve Spec — Built by Genie to the original proportional valve specification, ensuring correct flow and position response for the circuit it serves.
- Direct OEM Replacement — This valve is engineered to swap directly into the existing valve assembly, maintaining all original port connections and mounting dimensions.
- Broad Boom Lift Compatibility — Fits Genie SX super-boom telescopic lifts and Z articulating boom lifts, covering a wide range of large-platform boom models.
- Proportional Control Integrity — A proportional valve regulates flow in proportion to the command signal, enabling smooth and precise boom movement. A worn or failed valve causes erratic, jerky, or unresponsive boom functions.
- Operational Safety — On aerial boom lifts, precise valve function is directly tied to controlled platform movement and operator safety. Replacing a failed valve with a correct OEM unit restores predictable boom response.
A proportional 3-position 4-way valve controls the direction and flow rate of fluid through a circuit by shifting between three positions — open center, and two work positions — allowing the operator to command variable, graduated movement rather than simple on/off actuation. The "4-way" designation means the valve manages four fluid ports: supply, return, and two work ports that direct flow to either side of the actuator it controls. When this valve fails or sticks, boom functions can become sluggish, unresponsive, or unpredictable, making prompt replacement critical for safe and accurate machine operation.
Part Details
| Part Number | 107788GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Proportional 3-Position 4-Way Valve |
Compatibility & Fitment
| Name | Models |
|---|---|
| SX-135 XC | SX-135 XC |
| SX-150 | SX-150 |
| SX-180 | SX-180 |
| Z-33 DC Power | Z-33 DC Power |
| Z-45 XC | Z-45 XC |
| Z-135/70 | Z-135/70 |
| Z33/18 | Z33/18 |
| ZX-135/70 | ZX-135/70 |
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.
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