The Genie 1279109GT is a genuine OEM Counterbalance Valve, 1750 PSI designed for the SX-105 XC and SX-125 XC super-boom telescopic lifts. As a direct OEM replacement, this valve is sourced to the same specification as the original component — ensuring it seats, it seals, and performs exactly as the hydraulic system demands. Cross-reference part number 1279109GT against your parts manual to confirm fitment before ordering.
Key Features
- OEM-Rated Pressure Specification — Set to the correct 1750 PSI relief threshold required by the SX-series hydraulic circuit, maintaining consistent load-holding performance.
- Direct Hydraulic Port Fit — Engineered to thread directly into the existing hydraulic manifold or cylinder port with no adaptation, preserving system integrity from installation.
- Verified SX Super-Boom Compatibility — Confirmed fitment for the SX-105 XC and SX-125 XC, Genie's high-reach telescopic boom platform.
- Controlled Load Holding — Prevents uncontrolled boom drift or descent under load, keeping the boom locked in position whenever hydraulic pressure is interrupted or the circuit is at rest.
- Critical Safety Function — On aerial boom lifts, counterbalance valve integrity is directly tied to safe platform operation at height; a correctly functioning valve is essential to meeting operational safety requirements.
A counterbalance valve is a hydraulic safety and control component that holds a load in place by preventing fluid from returning through a cylinder unless controlled pressure is applied from the opposite side. On large telescopic booms like the SX-105 XC and SX-125 XC, this valve ensures the boom stays locked at elevation even if a hydraulic hose were to fail or pressure is lost elsewhere in the circuit. When a counterbalance valve wears, sticks, or loses its set pressure, the result can be slow boom drift, jerky motion during descent, or — in a failure scenario — uncontrolled movement of a loaded platform at height.
Part Details
| Part Number | 1279109GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Counterbalance Valve, 1750 PSI |
Compatibility & Fitment
| Name | Model |
|---|---|
| SX-105 XC | SX-105 XC |
| SX-125 XC | SX-125 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.
