The Genie 87678GT Extension Lock Rack is a genuine OEM component built for Genie GS-3384, GS-3390, GS-4390, and GS-5390 large-platform scissor lifts. As a direct OEM replacement, this part is manufactured to the same specifications as the original, ensuring correct fit and function without rework or adaptation. Cross-reference part number 87678GT against your machine's parts manual to confirm it is the correct item for your serial range before ordering.
Key Features
- Genuine OEM Dimensional Conformity — Produced to Genie's original specifications, ensuring the rack profile, tooth geometry, and mounting points match the factory component exactly.
- Direct OEM Replacement — Engineered to swap into the extension lock assembly of compatible GS-series scissor lifts without modification.
- Broad GS Large-Platform Coverage — Fits the GS-3384, GS-3390, GS-4390, and GS-5390, covering Genie's heavy-duty large-platform scissor lift lineup.
- Structural Locking Integrity — A sound extension lock rack positively engages and holds the platform extension in position; a worn or damaged rack can allow unwanted movement of the deck under load.
- Operator Safety Relevance — The extension lock system is a direct personnel-safety component on aerial scissor lifts, making OEM-specification replacement critical to maintaining proper locking engagement at working height.
The extension lock rack is the toothed mechanical component that engages the platform deck extension and holds it securely in the selected extended position. When an operator extends the platform deck, the rack meshes with its mating locking mechanism to prevent the extension from retracting unintentionally while personnel are working on it. A rack that is worn, cracked, or missing teeth will not hold the extension reliably, compromising the stability of the work platform and the safety of anyone on it. Replacing a damaged rack with the correct OEM part restores the positive locking action the system was designed to deliver.
Part Details
| Part Number | 87678GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Extension Lock Rack, GS90**** |
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.
