The Genie 1279051GT is a genuine OEM Cylinder Extend Seal Kit built for the Genie S-85 XC telescopic boom lift. Sourced directly from Genie, this seal kit is manufactured to the exact material and dimensional standards required for the extend cylinder on this machine. Cross-reference part number 1279051GT against your S-85 XC parts manual to confirm it is the correct kit for your unit before ordering.
Key Features
- Genuine OEM Sealing Materials — Manufactured to Genie's exact compound and dimensional specifications, ensuring the seals seat and compress correctly within the extend cylinder bore.
- Direct Cylinder Fit — Designed specifically for the extend cylinder on the S-85 XC, this kit replaces the complete seal set without adaptation or modification.
- S-85 XC Telescopic Boom Compatibility — Confirmed fitment for the Genie S-85 XC, a heavy-duty telescopic boom lift in Genie's S series range.
- Restored Cylinder Integrity — Worn or degraded seals allow fluid to bypass the piston, causing the extend cylinder to drift or lose extension force. Replacing the full seal set restores proper cylinder stroke and holding performance.
- Operational Safety — A correctly sealed extend cylinder maintains boom position under load. Leaking seals can compromise boom extension control, making timely seal replacement essential for safe aerial operation.
An extend cylinder seal kit contains the complete set of seals, O-rings, and wipers required to rebuild the extend cylinder on the boom. Over time, seals degrade from pressure cycling, heat, and contamination, leading to internal bypass, external weeping, or loss of extension force. Replacing the full kit — rather than individual seals — restores the cylinder to its original sealing integrity and prevents further fluid loss. On a telescopic boom lift like the S-85 XC, a properly sealed extend cylinder is critical to maintaining controlled, full-range boom extension during elevated work.
Part Details
| Part Number | 1279051GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Cylinder Extend Seal Kit |
Compatibility & Fitment
| Name | Models |
|---|---|
| S-85 XC | S-85 XC |
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.
