The Genie 77987GT is a genuine OEM 74665GT Manual Relief Valve #8 built for Genie Z-34/22 IC and Z-34 IC articulating boom lifts. As a direct OEM replacement, this valve is manufactured to the same specification as the original part it replaces, ensuring consistent performance on your machine. Confirm part number 77987GT against your machine's parts manual to verify it is the correct valve for your unit before ordering.
Key Features
- Genuine OEM Specification — Manufactured to Genie's original design standards, this relief valve meets the exact pressure and flow requirements of the circuit it serves.
- Direct OEM Replacement — Engineered to install in place of the original component in the 74665GT manual valve assembly, with no guesswork on compatibility.
- Confirmed Fitment — Designed for Genie Z-34/22 IC and Z-34 IC articulating boom lifts, keeping your machine running with the correct OEM part.
- Pressure Regulation Integrity — A properly functioning relief valve protects the circuit it serves from pressure spikes, maintaining safe and consistent operation of the boom functions.
- Safety-Critical Component — Relief valves are a key element of boom lift safety; using a genuine OEM part ensures the valve opens and closes at the correct set point, protecting both the machine and the operator.
A relief valve regulates pressure within the fluid circuit it serves by opening at a set threshold to divert excess fluid and prevent damage to components downstream. On an articulating boom lift, a correctly functioning relief valve is essential to stable, controlled boom movement — an out-of-spec or failed valve can result in sluggish response, uncontrolled motion, or pressure-related component damage. Replacing a worn or leaking valve promptly with the correct OEM part restores proper pressure control and keeps the machine operating as intended.
Part Details
| Part Number | 77987GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | 74665GT Manual Relief Valve #8 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Z-34/22 IC | Z-34/22 IC |
| Z-34 IC | Z-34 IC |
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.
