The Genie 74425GT is a genuine OEM Differential Sense Valve designed for Genie Z-34/22 and Z-30/20 series articulating boom lifts. Sourced directly from Genie, this valve meets the exact engineering requirements of the original component, ensuring your machine operates as intended. Compatible models include the Z-34/22 N, Z-34/22 DC, Z-34/22 Bi-Energy, Z-30/20 N, and Z-30/20N RJ — cross-reference 74425GT against your parts manual to confirm fitment before ordering. When the hydraulic system demands precision, choosing a genuine OEM part is the straightforward path to restoring full function.
Key Features
- Genuine OEM Hydraulic Accuracy — Manufactured to Genie's original pressure-sensing specifications, ensuring the valve responds correctly to differential pressure signals in the hydraulic circuit.
- Direct Drop-In Replacement — Engineered to match the original valve's port configuration and mounting interface, allowing installation without adapters or rework.
- Confirmed Fitment for Z-Series Articulating Booms — Fits the Z-34/22 N, Z-34/22 DC, Z-34/22 Bi-Energy, Z-30/20 N, and Z-30/20N RJ; verify part number 74425GT in your machine's parts manual.
- Protects Hydraulic System Integrity — A properly functioning differential sense valve maintains balanced hydraulic pressure across the circuit, preventing erratic boom movement and protecting downstream components from pressure spikes.
- Aerial Lift Safety Compliance — On articulating boom lifts, correct hydraulic valve function is directly tied to controlled platform movement and operator safety; replacing a faulty valve with a genuine OEM part keeps the machine performing within its designed operating parameters.
A differential sense valve monitors and responds to pressure differences between two points in a hydraulic circuit, signaling the pump or control system to adjust flow and maintain consistent output pressure. On articulating boom lifts like the Z-34/22 and Z-30/20 series, this valve plays a key role in keeping boom movements smooth and predictable under varying loads. When the valve wears or fails, operators may experience sluggish or uneven boom response, hunting, or a loss of hydraulic control — all of which point to the need for prompt replacement to restore safe, reliable operation.
Part Details
| Part Number | 74425GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Differential Sense Valve |
Compatibility & Fitment
| Name | Model |
|---|---|
| Z-34/22 N | Z-34/22 N |
| Z-34/22 DC | Z-34/22 DC |
| Z-34/22 Bi-Energy | Z-34/22 Bi-Energy |
| Z-30/20 N | Z-30/20 N |
| Z-30/20N RJ | Z-30/20N RJ |
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.
