The Genie 27802GT is a genuine OEM Differential Sensing Valve designed for Genie telescopic and articulating boom lifts. Sourced directly through authorized Genie supply channels, this valve delivers the exact fit and hydraulic specification required by the original machine design. It is compatible with a broad range of Genie S-series telescopic booms — including the S-40, S-45, S-60, S-60 XC, S-60 TRAX, S-65, S-65 XC, S-65 TRAX, S-80, and S-85 — as well as Z-series and ZX-series articulating booms such as the Z-45/25, Z-45/25J IC Power, Z-45/22, Z-60/34, Z-80/60, Z-135/70, and ZX-135/70. Choosing the genuine OEM part means the valve integrates directly with the existing hydraulic circuit without modification, preserving the hydraulic balance and pressure-compensation performance the manufacturer engineered into these machines.
Key Features
- Genuine OEM Hydraulic Specification — Manufactured to the exact pressure-sensing tolerances required by the original Genie hydraulic system design, ensuring the valve responds correctly across all operating conditions.
- Direct-Replacement Fit — Matches the original port configuration and mounting geometry of the 27802GT, so this valve installs directly into the existing hydraulic circuit without rework or adapter fittings.
- Broad Boom Lift Compatibility — Fits a wide range of Genie S-series telescopic booms and Z-series and ZX-series articulating booms, making it a practical stock item for mixed Genie fleets.
- Stable Hydraulic Load Sensing — A correctly functioning differential sensing valve maintains balanced flow and pressure compensation throughout lift and drive functions, supporting smooth, controlled machine operation.
- Safety-Critical Hydraulic Integrity — On aerial boom lifts, proper hydraulic sensing directly affects controlled platform movement and load handling. Using the correct OEM valve helps maintain the system behavior these machines are certified to deliver.
A differential sensing valve monitors and compares hydraulic pressure across different points in the system, allowing the hydraulic pump and control circuit to balance flow and pressure in response to changing load demands. On boom lifts, this component plays a central role in ensuring smooth, predictable movement of the boom and platform under varying loads and operating angles. When this valve wears, sticks, or fails, the hydraulic system can exhibit erratic boom movement, sluggish response, or loss of load-sensing control — any of which can affect both productivity and safe machine operation. Replacing a faulty valve with the correct OEM part restores the pressure-compensation behavior the machine was designed to deliver.
Part Details
| Part Number | 27802GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Differential Sensing Valve |
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 |
| S-65 XC | S-65 XC |
| S-60 HF | S-60 HF |
| S-65 HF | S-65 HF |
| S-40 | S-40 |
| S-45 | S-45 |
| S-60 J | S-60 J |
| S-80 | S-80 |
| S-85 | S-85 |
| Z-60/34 | Z-60/34 |
| Z-135/70 | Z-135/70 |
| ZX-135/70 | ZX-135/70 |
| Z-80/60 | Z-80/60 |
| Z-45/22 | Z-45/22 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-45/25 | Z-45/25 |
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.
