The Genie 71174GT is a genuine OEM ECU J3 Wire Harness designed for Genie GS large-platform scissor lifts, including the GS-3390, GS-4390, GS-5390, and GS-3384. As a direct OEM replacement, this harness meets the original engineering specifications Genie built into these machines, ensuring the correct connector pinout, wire gauge, and routing geometry. Cross-reference part number 71174GT against your parts manual to confirm fitment before ordering. If your GS-series scissor lift is showing ECU communication faults, erratic control behavior, or wiring damage at the J3 connector, this harness is the correct replacement to restore full electrical function.
Key Features
- Genuine OEM Electrical Integrity — Built to the same connector and conductor specifications as the original harness, preserving correct signal transmission between the ECU and machine systems.
- Correct J3 Connector Configuration — Plugs directly into the ECU J3 port with the proper pin arrangement, eliminating guesswork during installation on large-platform GS scissor lifts.
- Broad GS Large-Platform Fitment — Confirmed for the GS-3390, GS-4390, GS-5390, and GS-3384, covering Genie's heavy-duty rough-terrain and high-capacity scissor lift models.
- Restores Full ECU Communication — A damaged or corroded J3 harness can cause control system faults, loss of machine function, or failure to power on; replacing it with this harness re-establishes clean, uninterrupted signal paths.
- Operational Safety Compliance — On aerial scissor lifts, ECU wiring integrity is directly tied to safe platform operation and proper function of safety-critical controls — using the correct OEM harness supports reliable system behavior.
The ECU J3 Wire Harness is the dedicated wiring loom that carries electrical signals between the machine's ECU (Electronic Control Unit) and the systems connected at the J3 interface, which may include drive, lift, and safety-interlock circuits on large-platform GS scissor lifts. When this harness develops breaks, corrosion, or connector damage, the ECU loses the ability to accurately read inputs or send commands, resulting in fault codes, restricted machine operation, or a complete loss of control response. Replacing the harness with the correct OEM component restores the precise electrical pathways the control system depends on for safe, reliable operation.
Part Details
| Part Number | 71174GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Wire Harness, ECU J3, GS90 |
Compatibility & Fitment
| Name | Model |
|---|---|
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| GS-3384 | GS-3384 |
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.
