The Genie 77409GT is a genuine OEM Counterbalance Valve, 1000 ATM built for Genie Z-series articulating boom lifts, including the Z-51/30J, Z-45 XC, and Z-45/25 IC. As a factory-sourced component, this valve is manufactured to the same specification as the original part it replaces, ensuring correct operation within the circuit it serves. Cross-reference part number 77409GT against your machine's parts manual to confirm it is the right valve for your unit before ordering.
Key Features
- Genuine OEM Quality — Manufactured by Genie to original design tolerances, delivering consistent dimensional conformity and material grade for this valve type.
- Direct Replacement Fit — Engineered to match the original valve's configuration, allowing straightforward installation in the same position and connection points as the part being replaced.
- Confirmed Fitment — Compatible with Genie Z-51/30J, Z-45 XC, and Z-45/25 IC articulating boom lifts; verify against your serial number and parts manual for your specific unit.
- Load Control Integrity — A correctly functioning counterbalance valve holds a suspended load securely and prevents uncontrolled movement if a fluid line loses pressure, which is essential on aerial boom lifts where platform position must be held reliably.
- Operational Safety — Counterbalance valves are a critical safety component on articulating booms; using a genuine OEM part ensures the valve opens and closes at the correct rated pressure, protecting both the operator and the machine.
A counterbalance valve is a pressure-holding device installed in the fluid circuit of a boom or cylinder to prevent a load from drifting or dropping when the machine is stationary or if a line fails downstream. It works by requiring a controlled pilot signal to open, which means the boom or arm moves only when the system actively commands it. When this valve wears, sticks, or fails, the result can be slow or erratic boom movement, load drift, or an inability to hold a raised platform in position — all of which take the machine out of service until the valve is replaced.
Part Details
| Part Number | 77409GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Counterbalance Valve, 1000 ATM |
Compatibility & Fitment
| Name | Models |
|---|---|
| Z-45 XC | Z-45 XC |
| Z-45/25 IC | Z-45/25 IC |
| Z-51/30J | Z-51/30J |
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.
