The Genie 122651GT is a genuine OEM Differential Sensing Valve designed for Genie S-series telescopic boom lifts and Z-series articulating boom lifts, including the S-80, S-80X, S-80 XC, S-80 HF, S-85, S-85 XC, S-85 HF, and Z-62/40. As a factory-original component, this valve is manufactured to the exact specifications Genie requires for proper hydraulic system operation — ensuring a direct, correct-fit replacement with no guesswork on compatibility. Cross-reference part number 122651GT against your machine's parts manual to confirm application before ordering.
Key Features
- Genuine OEM Hydraulic Precision — Factory-original construction matches the exact flow-sensing tolerances and pressure response characteristics required by Genie's hydraulic circuit design.
- Direct Drop-In Replacement — Engineered to the same port configuration and mounting interface as the original valve, allowing straightforward installation on compatible machines.
- Broad S- and Z-Boom Fitment — Compatible with the S-80, S-80X, S-80 XC, S-80 HF, S-85, S-85 XC, S-85 HF, and Z-62/40 boom lifts, covering a wide range of high-reach Genie aerial equipment.
- Restores Stable Hydraulic Performance — A properly functioning differential sensing valve maintains balanced load-sensing signal delivery, supporting smooth, consistent boom movement under varying load conditions.
- Critical to Safe Boom Operation — On aerial boom lifts operating at significant heights, correct hydraulic valve function is directly tied to controlled, predictable platform movement — making accurate replacement essential for safe machine operation.
A differential sensing valve plays a key role in a load-sensing hydraulic system by detecting the pressure difference between the pump output and the actuator demand. This signal tells the hydraulic pump how much flow and pressure the system actually needs at any given moment, allowing it to respond efficiently and accurately. When this valve wears out or fails, the hydraulic system may become erratic, unresponsive, or unable to properly control boom movement — symptoms that can compromise both productivity and operator safety on elevated work platforms.
Part Details
| Part Number | 122651GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Differential Sensing Valve |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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 |
| Z-62/40 | Z-62/40 |
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.
