The Genie 21666GT is a genuine OEM Shuttle Cartridge Valve, 80 PSI, designed for the Z-45/22D and Z-45/22DRT articulating boom lifts. As a direct Genie OEM part, this valve is manufactured to the exact specifications of the original component, ensuring correct hydraulic system behavior and a drop-in installation with no guesswork. Cross-reference part number 21666GT against your machine's parts manual to confirm fitment before ordering. Whether you're performing a scheduled service or responding to a hydraulic fault, this component delivers the precision your Z-series boom depends on.
Key Features
- OEM-Specified Pressure Rating — Calibrated to an 80 PSI shuttle threshold, matching the original hydraulic circuit design for accurate flow control and consistent valve response.
- Cartridge-Style Installation — Threads directly into the existing hydraulic manifold port, allowing straightforward removal and replacement without custom fitting or block modification.
- Confirmed Fitment for Z-45/22 Articulating Booms — Engineered specifically for the Z-45/22D and Z-45/22DRT, covering both standard and rough-terrain variants of this articulating boom lift.
- Hydraulic Circuit Integrity — A functioning shuttle valve ensures correct pilot signal selection across boom functions; a failed or stuck valve can cause sluggish, erratic, or non-responsive boom movement.
- Operational Safety Compliance — Proper shuttle valve operation is critical to maintaining controlled boom movement at height; replacing a worn valve restores the hydraulic logic that protects operators during aerial work.
A shuttle valve is a hydraulic logic component that selects between two inlet pressure sources and allows the higher-pressure signal to pass through to a downstream circuit while blocking the other. In an articulating boom lift, this function is essential for routing the correct pilot or load-sensing signal during multi-function operations, keeping boom movements smooth and predictable. When the shuttle valve fails — through wear, contamination, or a stuck ball — the hydraulic system can receive the wrong control signal, leading to loss of function responsiveness or unintended boom behavior that compromises safe operation at elevation.
Part Details
| Part Number | 21666GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Shuttle Cartridge Valve, 80 PSI |
Compatibility & Fitment
| Name | Model |
|---|---|
| Z-45/22D | Z-45/22D |
| Z-45/22DRT | Z-45/22DRT |
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.
