The Genie 139508GT is a genuine OEM 1:1 Flow Divide/Combine Valve designed for Genie S-series telescopic boom lifts and Z-series articulating boom lifts. Sourced directly from Genie, this valve is built for manifold 139391 and applies from serial number Z452510A-39751 and from serial number Z452511B-1607 onward — cross-reference part number 139508GT against your parts manual to confirm applicability for your specific machine. It covers a wide range of boom lift models, including S-40, S-45, S-60, S-65, S-80, and S-85 variants, as well as Z-45/25, Z-51/30J, Z-60/34, and Z-62/40 articulating booms. As a genuine OEM component, this valve meets the exact engineering standard of the original unit it replaces.
Key Features
- Exact 1:1 Flow Split Ratio — Delivers a precisely balanced hydraulic flow division, maintaining equal distribution between circuits as originally engineered for these boom platforms.
- Genuine OEM Construction — Manufactured to the same specification as the original valve, ensuring correct porting, pressure rating, and thread interface for manifold 139391.
- Serial-Number-Specific Fitment — Engineered for machines from SN Z452510A-39751 and from SN Z452511B-1607; always verify your serial number before ordering to ensure a correct match.
- Broad Boom Lift Compatibility — Fits a wide range of Genie S-series telescopic booms (S-40 through S-85 in multiple configurations) and Z-series articulating booms (Z-45/25 through Z-62/40).
- Restores Hydraulic System Balance — A worn or failed flow divider/combiner causes uneven extension, drift, or erratic boom movement; replacing it with this OEM valve restores smooth, synchronized hydraulic operation.
- Critical Safety Function — Balanced hydraulic flow is directly tied to controlled, predictable boom travel on aerial lift platforms; installing the correct OEM valve supports safe machine operation at height.
A flow divide/combine valve controls how hydraulic fluid is split between two circuits (divide mode) or merged from two circuits into one (combine mode) in a 1:1 ratio. In boom lift applications, this valve plays a key role in synchronizing hydraulic functions — ensuring that paired cylinders or circuits extend and retract at matched rates for smooth, controlled boom movement. When this valve wears, sticks, or fails, operators may experience uneven boom travel, sluggish response, or uncontrolled drift, all of which compromise both productivity and safe operation at height. Replacing it with the correct OEM part restores the hydraulic balance the system was designed to deliver.
Part Details
| Part Number | 139508GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Flow Divide/Combine Valve 1:1 |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| S-60 | S-60 |
| S-65 | S-65 |
| S-60X | S-60X |
| S-60 XC | S-60 XC |
| S-60 HC | S-60 HC |
| S-60 TRAX | S-60 TRAX |
| S-65 TRAX | S-65 TRAX |
| S-65 XC | S-65 XC |
| S-60 HF | S-60 HF |
| S-65 HF | S-65 HF |
| S-40 | S-40 |
| S-45 | S-45 |
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| 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 |
| S-60 J | S-60 J |
| S-80 J | S-80 J |
| Z-60/34 | Z-60/34 |
| Z-51/30J | Z-51/30J |
| Z-45/25 | Z-45/25 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-62/40 | Z-62/40 |
| 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.
