The Genie 218121GT is a genuine OEM Relief Valve, 250 PSI built for Genie Z-series articulating boom lifts, including the Z-51/30J, Z-45 XC, and Z-45/25 IC. As a direct OEM replacement, this valve meets the original design and pressure specification, ensuring a correct drop-in fit without modification. Cross-reference part number 218121GT against your machine's parts manual to confirm it is the right valve for your unit before ordering.
Key Features
- Genuine OEM Pressure Rating — Factory-spec 250 PSI setting means this valve operates exactly as the original, protecting the circuit it serves from overpressure conditions.
- Direct OEM Replacement — Engineered to the original port configuration and pressure specification for a correct installation on compatible Z-series machines.
- Confirmed Fitment — Designed for Genie Z-51/30J, Z-45 XC, and Z-45/25 IC articulating boom lifts.
- Consistent Fluid Circuit Control — A properly functioning relief valve maintains pressure within its intended operating range; a worn or failed valve can allow pressure to exceed safe limits or cause sluggish, erratic operation.
- Operational Safety — On aerial boom lifts, a correctly set relief valve is a critical safeguard — keeping fluid system pressure within design limits protects both the machine's components and the operator working at height.
A relief valve is a pressure-control component that opens at a set pressure threshold — in this case 250 PSI — to divert fluid and prevent overpressure from damaging other components in the circuit. When the valve is worn, incorrectly set, or failed, the system may experience erratic performance, component damage, or an inability to hold the correct pressure under load.
Part Details
| Part Number | 218121GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Relief Valve, 250 PSI |
Compatibility & Fitment
| Name | Models |
|---|---|
| Z-45 XC | Z-45 XC |
| Z-45/25 IC | Z-45/25 IC |
| Z-51/30J | Z-51/30J |
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.
