The Genie 1263939GT is a genuine OEM Pump Shaft Seal Kit (Eaton) built for Genie GS large-frame scissor lifts, including the GS-3384, GS-3390, GS-4390, and GS-5390. Sourced directly from Genie, this kit delivers the exact seals specified for the Eaton pump fitted to these machines, ensuring a correct, lasting repair without guesswork. Cross-reference part number 1263939GT against your machine's parts manual to confirm it matches your serial range and pump configuration before ordering.
Key Features
- Genuine OEM Seal Materials — Each seal in the kit meets Genie's material and dimensional specifications for the Eaton pump, so you're not compromising on grade or fit.
- Complete Kit Format — All shaft seals required for the pump reseal are included in a single kit, so one part number covers the full job.
- Confirmed Fitment — Designed for Genie GS-3384, GS-3390, GS-4390, and GS-5390 large-frame rough-terrain and electric scissor lifts.
- Restores Fluid Integrity — A worn or failed pump shaft seal allows fluid to weep externally. Replacing the seals with the correct kit restores a clean, pressure-holding circuit and prevents ongoing fluid loss.
- Operational Safety — Leaking pump seals can lead to loss of lift function on aerial equipment. Keeping the pump properly sealed is essential to maintaining consistent, safe platform operation.
The pump shaft seal kit contains the seals that prevent fluid from escaping around the rotating shaft of the hydraulic pump. Over time, shaft seals can harden, crack, or wear, causing fluid to leak externally at the pump body. Left unaddressed, a leaking pump shaft seal leads to fluid loss, reduced system pressure, and degraded lift performance. Replacing the seals with a complete, genuine OEM kit restores the pump's ability to maintain pressure and keeps the machine operating as intended. Confirm part number 1263939GT against your machine's parts manual before ordering to ensure this is the correct kit for your unit's pump assembly.
Part Details
| Part Number | 1263939GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Pump Shaft Seal Kit (Eaton) |
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.
