The Genie 48999GT is a genuine OEM Check Valve, #8 Port, #8 Male ORS designed for Genie Z-series articulating boom lifts, including the Z-34/22 DC, Z-34/22 Bi-Energy, Z-51/30J, Z-33 DC Power, Z-45 XC, and select Z-33 and Z-34 models. As a direct OEM replacement, this check valve is manufactured to Genie's exact specifications, ensuring the correct port configuration and thread form for a proper installation. Cross-reference part number 48999GT against your machine's parts manual to confirm it is the correct valve for your unit before ordering.
Key Features
- Genuine OEM Specification — Built to Genie's exact dimensional and material standards for the #8 port and #8 Male ORS thread configuration, ensuring consistent seating and sealing performance.
- Exact-Match Port and Thread Form — The #8 port and #8 Male ORS fitting match the original connection points directly, requiring no adapters or modifications during installation.
- Broad Z-Series Compatibility — Fits a wide range of Genie Z-series articulating boom lifts, including DC, Bi-Energy, IC, and XC variants across the Z-33, Z-34, Z-45, and Z-51 families.
- One-Way Flow Control — A properly functioning check valve allows fluid to pass in one direction only, preventing backflow and maintaining pressure in the circuit it serves. A failed or worn valve can result in unintended movement or loss of pressure.
- Operational Safety — On articulating boom lifts, check valves play a role in maintaining boom position and preventing uncontrolled drift. Replacing a faulty valve with the correct OEM part helps restore intended machine behavior.
A check valve is a one-way flow control component that allows fluid to move freely in one direction while blocking reverse flow. On articulating boom lifts, check valves are used to hold pressure in specific parts of the fluid circuit, preventing unintended boom or platform movement when the machine is stationary. When a check valve wears out or its internal seating surface is damaged, it can allow backflow that leads to slow drift, erratic boom behavior, or loss of holding pressure — all of which affect the safe and predictable operation of the lift. Replacing the valve with the correct OEM part restores proper one-way flow control to the circuit it serves.
Part Details
| Part Number | 48999GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Check Valve, #8 Port, #8 Male ORS |
Compatibility & Fitment
| Name | Models |
|---|---|
| Z-33 DC Power | Z-33 DC Power |
| Z-34 IC | Z-34 IC |
| Z-34/22 Bi-Energy | Z-34/22 Bi-Energy |
| Z-34/22 DC | Z-34/22 DC |
| Z-45 XC | Z-45 XC |
| Z-45/25 IC | Z-45/25 IC |
| Z-51/30J | Z-51/30J |
| Z33/18 | Z33/18 |
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.
