The Genie 77501GT is a genuine OEM Relief Valve, 2600 PSI designed for Genie S-80 XC, S-85 XC, S-80 HF, S-85 HF, and Z-80/60 boom lifts. Sourced directly from Genie, this relief valve meets the exact hydraulic system specifications required by these machines, so you can trust it to perform the way the manufacturer intended. Cross-reference part number 77501GT against your parts manual to confirm fitment before ordering. This component is the direct-replacement solution for worn or failed relief valves on these telescopic and articulating boom platforms.
Key Features
- Factory-Calibrated Pressure Rating — Set to the OEM-specified 2600 PSI, ensuring the hydraulic circuit operates within the exact pressure window these boom lifts require.
- Genuine OEM Construction — Manufactured to Genie's original design tolerances, with valve seat geometry and sealing surfaces matched to the hydraulic circuit of these machines.
- Direct-Fit Replacement — Threads and port sizing match the original installation point, so this valve seats and seals without modification to lines or fittings.
- Broad Boom Lift Coverage — Fits Genie S-80 XC, S-85 XC, S-80 HF, S-85 HF, and Z-80/60, covering both large telescopic and articulating boom configurations in the Genie heavy-boom lineup.
- Hydraulic System Protection — A correctly functioning relief valve prevents over-pressurization that can damage pumps, cylinders, and hoses — keeping the entire hydraulic circuit operating within safe limits.
- Critical Safety Function — On large boom lifts operating at height, proper pressure relief is a fundamental safeguard; installing a verified OEM-spec valve supports the hydraulic integrity the machine's design depends on.
A hydraulic relief valve acts as the pressure ceiling for a machine's hydraulic system. When pressure in the circuit climbs beyond the set threshold — in this case 2600 PSI — the valve opens to divert excess fluid back to the reservoir, preventing dangerous over-pressurization. On large boom lifts like the S-80 XC, S-85 XC, and Z-80/60, this function is essential: the relief valve protects lift cylinders, the hydraulic pump, and connected hoses from pressure spikes that can cause sudden component failure. When a relief valve wears, sticks open, or fails to hold its rated pressure, the machine may exhibit sluggish lift performance, inability to hold a load, or erratic boom movement — all signs that the valve needs immediate replacement.
Part Details
| Part Number | 77501GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Relief Valve, 2600 PSI |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| Z-80/60 | Z-80/60 |
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.
