The Genie 44178GT is a genuine OEM Check Valve, 5 PSI designed for a wide range of Genie scissor lifts and boom lifts. Sourced directly from Genie, this part meets the same specification as the component installed at the factory, ensuring a correct, trouble-free fit. It is compatible with Genie GS scissor lifts, S telescopic boom lifts, and Z articulating boom lifts, including models S-100HD, S-120HD, S-3800, S-3200, S-120, S-125. Cross-reference part number 44178GT against your machine's parts manual to confirm fitment before ordering.
Key Features
- Genuine OEM Pressure Rating — Rated at 5 PSI and built to the exact cracking-pressure specification Genie requires for proper hydraulic circuit function in these platforms.
- Direct Hydraulic-Line Replacement — Installs directly into the existing hydraulic circuit with no rework, matching the original valve's porting and thread configuration.
- Broad Fitment Across Genie Families — Fits Genie GS scissor lifts, S series telescopic booms, and Z series articulating booms, covering a wide range of fleet configurations from a single part number.
- Maintains One-Way Flow Integrity — Keeps hydraulic fluid flowing in the correct direction, protecting cylinders and actuators from back-pressure that can cause drift, sluggish response, or uncontrolled movement.
- Aerial-Lift Safety Relevance — A correctly functioning check valve is critical on aerial equipment; a failed or bypassing valve can allow platform drift under load, making timely replacement essential for safe operation.
A check valve is a one-way flow device in the hydraulic system that allows fluid to pass in a single direction while blocking reverse flow. On aerial lifts, check valves are used to hold pressure in lift cylinders and prevent the platform from drifting down under its own weight or an applied load. When a check valve fails — whether it sticks open, cracks at the wrong pressure, or leaks past its seat — the result can be slow or uneven platform movement, load creep, or an inability to hold position, all of which compromise both productivity and operator safety.
Part Details
| Part Number | 44178GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Check Valve, 5 PSI |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-100HD | S-100HD |
| S-120HD | S-120HD |
| S-3800 | S-3800 |
| S-3200 | S-3200 |
| S-120 | S-120 |
| S-125 | S-125 |
| S-100 | S-100 |
| S-105 | S-105 |
| GS-3384 | GS-3384 |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| GS-1530 | GS-1530 |
| GS-1930 | GS-1930 |
| GS-2032 | GS-2032 |
| GS-2632 | GS-2632 |
| GS-2046 | GS-2046 |
| GS-2646 | GS-2646 |
| GS-3246 | GS-3246 |
| GS-2668 RT | GS-2668 RT |
| GS-3268 RT | GS-3268 RT |
| GS-2668 DC | GS-2668 DC |
| GS-3268 DC | GS-3268 DC |
| Z-51/30J | Z-51/30J |
| Z-45/25 | Z-45/25 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-45 XC | Z-45 XC |
| 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.
