The Genie 89100GT is a genuine OEM Oscillating Cylinder 89099GT Seal Kit built for Genie S-40 and S-45 series telescopic boom lifts. As a direct OEM replacement, it delivers the exact sealing materials, dimensions, and tolerances specified for cylinder 89099GT — no guesswork, no adaptation. This kit is confirmed to fit the S-40, S-45, S-40 XC, S-45 XC, S-40 TRAX, S-45 TRAX, S-40 HF, and S-45 HF, covering the full range of S-40 and S-45 variants. Cross-reference part number 89100GT against your machine's parts manual before ordering to confirm it matches your serial number and build.
Key Features
- OEM-Grade Seal Materials — Each seal in this kit is manufactured to Genie's original material and compression specifications for cylinder 89099GT, ensuring proper sealing performance from the first use.
- Cylinder-Specific Fit — Engineered exclusively for oscillating cylinder 89099GT on S-40 and S-45 booms, so every seal seats correctly without modification.
- Full S-40 and S-45 Variant Coverage — Fits S-40, S-45, S-40 XC, S-45 XC, S-40 TRAX, S-45 TRAX, S-40 HF, and S-45 HF telescopic boom lifts.
- Restored Cylinder Integrity — A fresh seal kit returns the oscillating cylinder to proper operating condition, stopping fluid weep and restoring smooth, controlled cylinder movement.
- Genuine Genie OEM Part — Supplied directly in the Genie OEM parts chain, so you receive the correct kit for cylinder 89099GT without substitution or compromise.
The oscillating cylinder on Genie S-40 and S-45 telescopic boom lifts allows the axle or chassis component it serves to articulate and absorb uneven terrain, keeping the machine stable during travel and operation. The seals within this cylinder prevent fluid from escaping past the piston and rod, maintaining the pressure needed for consistent, controlled movement. When seals wear or harden over time, the cylinder begins to weep fluid, loses holding force, and may allow unwanted movement — conditions that compromise both machine control and operator safety. Replacing the seals in cylinder 89099GT with this genuine OEM kit restores the cylinder to its original sealing performance and returns the boom to reliable, stable operation.
Part Details
| Part Number | 89100GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Oscillating Cylinder 89099GT Seal Kit |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-40 | S-40 |
| S-45 | S-45 |
| S-40 XC | S-40 XC |
| S-45 XC | S-45 XC |
| S-40 TRAX | S-40 TRAX |
| S-45 TRAX | S-45 TRAX |
| S-40 HF | S-40 HF |
| S-45 HF | S-45 HF |
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.
