The Genie 71787GT is a genuine OEM Counterbalance Valve, 2900 PSI designed for Genie GS large-platform scissor lifts, including the GS-3384, GS-3390, GS-4390, and GS-5390. As a direct factory replacement, this valve maintains the precise pressure rating and hydraulic performance your machine was engineered to deliver. Cross-reference part number 71787GT against your Genie parts manual to confirm fitment before ordering. Sourced directly from Genie, this component meets every original specification for a seamless, confidence-inspiring installation.
Key Features
- Factory-Correct 2900 PSI Rating — Genuine OEM construction ensures this valve holds the exact pressure threshold required to keep the scissor lift platform stable and secure under load.
- Direct Hydraulic Port Replacement — Engineered to match the original valve's port configuration, thread size, and body dimensions for a straightforward swap into the existing hydraulic circuit.
- Fits Large-Platform GS Scissor Lifts — Confirmed compatibility with the GS-3384, GS-3390, GS-4390, and GS-5390, covering Genie's heavy-duty rough-terrain scissor lift lineup.
- Holds Platform Position Under Pressure — A properly functioning counterbalance valve prevents uncontrolled platform drift or descent, keeping the lift at its working height when hydraulic flow is interrupted.
- Critical Safety-Related Component — Counterbalance valves are a core element of aerial lift hydraulic safety systems; using the correct OEM-rated part is essential for maintaining the machine's load-holding integrity and operator safety.
A counterbalance valve is a hydraulic control device that holds a load in position by blocking return flow until a specific pressure threshold is reached on the inlet side. On large scissor lifts like the GS-3384 through GS-5390, this valve prevents the platform from drifting downward under load if a hose fails or hydraulic pressure is lost — acting as a critical safety barrier between the elevated platform and an uncontrolled descent. When this valve wears, leaks, or fails to hold its rated pressure, the platform may creep or drop unexpectedly, creating a serious hazard for anyone working at height.
Part Details
| Part Number | 71787GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Counterbalance Valve, 2900 PSI |
Compatibility & Fitment
| Name | Model |
|---|---|
| GS-3384 | GS-3384 |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
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.
