The Genie 77990GT is a genuine OEM Seal Kit, 3CC Pump designed for Genie GS scissor lifts and Z-series articulating boom lifts. Sourced directly from Genie, this kit delivers the correct seals for the 3CC pump, ensuring a proper fit without modification. Compatible models include the GS-3384, Z-60/34, Z-34/22 N, Z-34/22 DC, Z-34/22 Bi-Energy, Z-30/20 N, Z-34/22 IC, Z-45/22, and Z-34 IC — cross-reference part number 77990GT against your machine's parts manual to confirm it is the correct kit for your unit.
Key Features
- Genuine OEM Sealing Materials — Manufactured to Genie's original material and dimensional specifications, so each seal in the kit meets the compression and sealing requirements of the 3CC pump.
- Correct Kit for the 3CC Pump — Every seal in the kit is sized and profiled specifically for the 3CC pump assembly, so installation is straightforward and the fit is correct first time.
- Broad Model Coverage — Fits a wide range of Genie GS scissor lifts and Z-series articulating booms, including the Z-34/22 Bi-Energy, Z-30/20 N, Z-60/34, and GS-3384, among others.
- Restores Pump Sealing Integrity — A worn or degraded seal allows fluid to bypass or escape the pump, causing loss of pressure and reduced machine performance. Replacing seals with this kit restores proper fluid retention within the pump circuit.
- Operational Safety on Aerial Equipment — Maintaining correct pump sealing is critical on boom lifts and scissor lifts, where consistent fluid pressure supports safe platform operation at height.
A pump seal kit contains the internal sealing elements — such as O-rings, lip seals, and backup rings — that prevent fluid from bypassing or escaping the pump's internal chambers. Over time, these seals degrade from heat, pressure cycling, and wear, leading to internal leakage that reduces pump output and machine responsiveness. Replacing the full set of seals with the correct OEM kit restores the pump's ability to build and hold pressure, keeping the machine operating as intended.
Part Details
| Part Number | 77990GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Seal Kit, 3CC Pump |
Compatibility & Fitment
| Name | Models |
|---|---|
| GS-3384 | GS-3384 |
| Z-30/20 N | Z-30/20 N |
| Z-34 IC | Z-34 IC |
| Z-34/22 Bi-Energy | Z-34/22 Bi-Energy |
| Z-34/22 DC | Z-34/22 DC |
| Z-34/22 IC | Z-34/22 IC |
| Z-34/22 N | Z-34/22 N |
| Z-45/22 | Z-45/22 |
| Z-60/34 | Z-60/34 |
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.
