The Genie 139517GT is a genuine OEM Valve Seal Kit designed for Z-45/25, Z-45/25J, Z-45/25 IC, Z-45/25J IC Power, Z-45/25J IC, and Z-51/30J articulating boom lifts, specifically for use with manifold 139391 from serial number Z452510A-39751 and from serial number Z452511B-1607. As a direct Genie OEM part, it is manufactured to the exact specifications of the original seals, ensuring a correct fit within the valve assembly it is built to service. Cross-reference part number 139517GT against your machine's parts manual and confirm your unit's serial number before ordering to verify this is the right kit for your manifold.
Key Features
- Genuine OEM Seal Materials — Each seal in the kit is produced to Genie's original material and dimensional specifications, maintaining the integrity of the valve assembly it serves.
- Serial-Number-Specific Fitment — Engineered for manifold 139391 on machines from serial number Z452510A-39751 and from serial number Z452511B-1607, ensuring the correct seals reach the correct valve configuration.
- Covers Z-45 and Z-51 Articulating Boom Families — Compatible with Z-45/25, Z-45/25J, Z-45/25 IC, Z-45/25J IC Power, Z-45/25J IC, and Z-51/30J models across multiple variants.
- Restores Valve Sealing Performance — Worn or damaged valve seals allow fluid to bypass the valve, leading to sluggish or inconsistent boom movement. Replacing them with this kit restores proper control of fluid flow through the manifold.
- Complete Kit Format — Supplied as a matched set for manifold 139391, so all seals in the valve assembly are renewed at once rather than replaced piecemeal.
A valve seal kit contains the sealing elements — such as O-rings, backup rings, and lip seals — that prevent fluid from bypassing or leaking past the valve's internal components. When these seals degrade, the valve cannot direct fluid accurately, which can result in slow, weak, or unresponsive boom functions. Replacing the full set of seals together restores proper valve operation and helps prevent progressive fluid loss that could affect machine control. Because this kit applies to a specific manifold and serial number range, always verify your machine's serial number against the serial break noted before ordering.
Part Details
| Part Number | 139517GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Valve Seal Kit (for manifold 139391, from SN Z452510A-39751 and from SN Z452511B-1607) |
Compatibility & Fitment
| Name | Model |
|---|---|
| Z-51/30J | Z-51/30J |
| Z-45/25 | Z-45/25 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-45/25 IC | Z-45/25 IC |
| Z-45/25J IC | Z-45/25J IC |
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.
