The Genie 87918GT is a genuine OEM Gear Pump, 16cc designed for Genie GS large-platform scissor lifts, including slab and rough-terrain models. As a direct OEM replacement, this gear pump is manufactured to the same standards as the original unit installed at the factory, ensuring a correct fit against your machine's existing porting, mounting, and drive interface. This pump is confirmed for the GS-3384, GS-3390, GS-4390, GS-5390, GS-2669RT, GS-3369RT, and GS-4069RT — verify part number 87918GT against your machine's parts manual before ordering to be certain it matches your serial number range.
Key Features
- Genuine OEM Displacement Accuracy — Built to the specified 16cc displacement rating, maintaining the correct fluid output volume and pressure characteristics the machine's circuit was designed around.
- Direct-Fit Replacement — Engineered to match the original pump's mounting face, port configuration, and drive coupling so the unit seats correctly without modification.
- Broad GS Series Coverage — Fits Genie GS large-platform scissor lifts across both slab and rough-terrain variants, including the GS-3384, GS-3390, GS-4390, GS-5390, GS-2669RT, GS-3369RT, and GS-4069RT.
- Restored Lift Performance — A worn or failing gear pump causes sluggish lift response, erratic platform movement, or a complete loss of function; replacing it with this OEM unit restores consistent, predictable operation.
- Operational Safety — On an aerial work platform, proper pump function is directly tied to controlled platform raise and lower. Using a genuine OEM replacement maintains the integrity of that function.
A gear pump is the hydraulic power source that moves fluid through the circuit, generating the flow and pressure needed to raise and lower the scissor stack. Inside the pump, two meshing gears draw fluid in from the reservoir and push it toward the valve block and cylinders. When a gear pump wears, it loses volumetric efficiency — meaning it can no longer move enough fluid at adequate pressure to lift the platform smoothly or hold it at height. Replacing the pump with the correct OEM unit, specified at 16cc per revolution, restores the flow rate the system was calibrated for and returns the machine to full working capacity.
Part Details
| Part Number | 87918GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Gear Pump, 16cc |
Compatibility & Fitment
| Name | Model |
|---|---|
| GS-3384 | GS-3384 |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| GS-2669RT | GS-2669RT |
| GS-3369RT | GS-3369RT |
| GS-4069RT | GS-4069RT |
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.
