The Genie 31078GT Hydraulic Cylinder Seal Kit is a genuine OEM replacement built for Genie S series telescopic boom lifts and Z series articulating boom lifts, including the S-40, S-45, S-60, S-65, S-80, S-85, Z-60/34, and Z-30/20 N. As a direct OEM replacement, this seal kit is manufactured to the same specifications as the original hardware, so it installs correctly without guesswork or rework. Cross-reference part number 31078GT against your machine's parts manual to confirm it is the correct kit for your cylinder and serial range before ordering.
Key Features
- OEM-Grade Hydraulic Sealing Materials — Manufactured to Genie OEM standards, the seals in this kit are matched in material grade and dimensional profile to the original cylinder seals, maintaining proper compression and fluid retention across the operating pressure range of the circuit.
- Direct Cylinder Replacement — Each component in the kit corresponds to the original seal positions within the hydraulic cylinder, allowing a straightforward rebuild without sourcing individual seals separately.
- Broad S and Z Series Compatibility — Fits Genie S series telescopic booms (S-40, S-45, S-60, S-65, S-80, S-85) and Z series articulating booms (Z-60/34, Z-30/20 N), covering a wide range of the Genie boom lift lineup.
- Restores Cylinder Performance — Worn or damaged hydraulic cylinder seals allow internal or external fluid bypass, causing sluggish or unresponsive boom movement. Replacing the seals with this kit restores the cylinder's ability to hold pressure and move the boom smoothly and consistently.
- Operational Safety on Elevated Equipment — On aerial boom lifts, a hydraulic cylinder that cannot hold pressure is a genuine safety concern. Using the correct OEM seal kit helps ensure the cylinder performs as designed when operators are working at height.
A hydraulic cylinder seal kit contains the internal and external seals, wipers, and O-rings required to rebuild a leaking or bypassing hydraulic cylinder. Over time, seals degrade from heat, pressure cycling, and contamination, leading to fluid weeping around the rod or loss of holding force within the cylinder. Replacing the full seal set rather than individual components ensures every wear point is addressed in a single service interval. On boom lifts where cylinder integrity directly affects platform positioning and load holding, using the correct OEM kit for the specific cylinder is essential to a lasting, dependable repair.
Part Details
| Part Number | 31078GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hydraulic Cylinder Seal Kit |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-40 | S-40 |
| S-45 | S-45 |
| S-80 | S-80 |
| S-85 | S-85 |
| S-60 | S-60 |
| S-65 | S-65 |
| Z-60/34 | Z-60/34 |
| Z-30/20 N | Z-30/20 N |
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.
