The Genie 43937GT is a genuine OEM Counterbalance Valve designed for Genie S-series telescopic boom lifts and Z-series articulating boom lifts. Sourced directly from Genie, this valve meets the original hydraulic specifications required for safe and controlled boom operation. This part is confirmed to fit the S-60, S-65, Z-34/22 N, Z-34/22 DC, Z-34/22 Bi-Energy, Z-30/20 N, Z-30/20N RJ, Z-34/22 IC, and Z-34 IC — cross-reference part number 43937GT against your parts manual to confirm application before ordering. When a counterbalance valve fails, boom movement becomes unpredictable and unsafe, making prompt replacement with the correct OEM component essential.
Key Features
- OEM Hydraulic Precision — Manufactured to Genie's original valve specifications, including the CBBC-LHN@3200 pressure rating, ensuring the hydraulic circuit performs exactly as engineered.
- Direct-Swap Installation — This valve is a direct replacement that connects to the existing hydraulic porting without adapters or modification to fittings.
- Broad Boom Lift Coverage — Fits multiple Genie S-series telescopic and Z-series articulating boom lift variants, including electric, bi-energy, and internal combustion models.
- Controlled Load Holding — Maintains proper back-pressure in the hydraulic circuit, preventing unintended boom drift or free-fall under load — critical for aerial work platform performance.
- Aerial Safety Compliance — A correctly functioning counterbalance valve is a primary safeguard against uncontrolled boom movement; replacing a worn or leaking valve restores the hydraulic control integrity the machine depends on for safe elevated operation.
A counterbalance valve is a hydraulic control component that holds a load in position by maintaining back-pressure on the actuator circuit — preventing a boom from drifting or dropping when the control input is neutral. On Genie boom lifts, this valve is a critical safety element in the lift and swing circuits, ensuring that the platform stays where the operator positions it, even under dynamic or off-center loads. When the valve wears, seals degrade, or the internal cartridge fails, the result is boom drift, sluggish response, or complete loss of load-holding capability — all conditions that take a machine out of service until the valve is restored.
Part Details
| Part Number | 43937GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Counterbalance Valve, CBBC-LHN@3200 |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-60 | S-60 |
| S-65 | S-65 |
| Z-34/22 N | Z-34/22 N |
| Z-34/22 DC | Z-34/22 DC |
| Z-34/22 Bi-Energy | Z-34/22 Bi-Energy |
| Z-30/20 N | Z-30/20 N |
| Z-30/20N RJ | Z-30/20N RJ |
| Z-34/22 IC | Z-34/22 IC |
| Z-34 IC | Z-34 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.
