The Genie 77788GT is a genuine OEM Piston Pump, 49CC, built for Genie GS scissor lifts and Z series articulating boom lifts, including the GS-3384, Z-51/30J, Z-62/40, Z-45 XC, and Z-45/25 IC. As a direct OEM replacement, this pump is manufactured to the same specification as the original unit, ensuring compatibility with the machines and circuits it serves. Cross-reference part number 77788GT against your machine's parts manual to confirm it is the correct pump for your unit before ordering.
Key Features
- Genuine OEM Quality — Manufactured to Genie's original specification for dimensional and performance conformity, this piston pump meets the same standards as the unit it replaces.
- Direct OEM Replacement — Designed to install in place of the original pump with no adaptation, maintaining the correct displacement and porting configuration for the circuit it serves.
- Broad Genie Fitment — Compatible with the GS-3384 scissor lift and multiple Z series articulating boom models, including the Z-51/30J, Z-62/40, Z-45 XC, and Z-45/25 IC.
- Correct 49CC Displacement — The 49CC rating is the identity of this pump — using a pump with incorrect displacement affects flow output and machine responsiveness, making the correct size essential.
- Supports Consistent Machine Operation — A functioning piston pump delivers the fluid flow that drives lift, drive, and function movements on the machine. A worn or failing pump causes sluggish response, loss of function, or complete inoperability.
A piston pump generates fluid flow by using reciprocating pistons within a rotating cylinder block, converting mechanical input into pressurized fluid output that powers the machine's functions. On aerial lifts like the Genie GS-3384 and Z series booms, the pump is the heart of the fluid circuit — when it degrades, output pressure and flow drop, leading to slow or unresponsive lift and drive functions. Replacing a worn pump with the correct OEM unit, such as the 77788GT, restores proper flow and pressure to the circuit it serves.
Part Details
| Part Number | 77788GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Piston Pump, 49CC |
Compatibility & Fitment
| Name | Models |
|---|---|
| GS-3384 | GS-3384 |
| Z-45 XC | Z-45 XC |
| Z-45/25 IC | Z-45/25 IC |
| Z-51/30J | Z-51/30J |
| Z-62/40 | Z-62/40 |
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.
