The Genie 139215GT Radiator Cap is a genuine OEM cooling system component designed for Genie GS rough-terrain scissor lifts and Z-34 IC articulating boom lifts. As a direct OEM replacement, this cap is manufactured to the exact specification required for the machines it serves, ensuring a correct, secure seal on the cooling system. Confirmed fitment includes the GS-2669RT, GS-3369RT, GS-4069RT, Z-34/22 IC, and Z-34 IC. Always cross-reference part number 139215GT against your machine's parts manual to confirm it is the correct cap for your specific unit before ordering.
Key Features
- OEM-Grade Pressure Rating — Manufactured to the original pressure specification, this cap maintains the correct system pressure for consistent cooling performance across the machines it fits.
- Exact OEM Replacement — Designed to swap directly onto the original filler neck with no modification, restoring a proper pressure-retaining seal.
- Broad Rough-Terrain and Boom Fitment — Fits Genie GS RT scissor lifts (GS-2669RT, GS-3369RT, GS-4069RT) and Genie Z-34 IC articulating boom lifts, covering a wide range of jobsite machines.
- Cooling System Integrity — A correctly seated radiator cap holds the system at the right pressure and prevents coolant loss. A failed or worn cap can cause overheating and unplanned stops in the field.
- Operational Safety — Maintaining proper coolant pressure is essential to preventing engine overtemperature conditions on IC-powered aerial equipment. Using the correct OEM cap supports safe, continued operation.
A radiator cap does more than seal the coolant reservoir — it regulates the pressure inside the cooling circuit, raising the boiling point of the coolant and allowing the engine to run at its designed operating temperature. When the cap's pressure valve weakens or the sealing gasket deteriorates, coolant can escape, pressure drops, and the engine becomes vulnerable to overheating. On IC-powered machines like the Z-34 IC boom lifts and GS RT scissor lifts this cap serves, an overheating condition can force a work stoppage or cause engine damage. Replacing a suspect cap with the correct OEM part is a straightforward, low-cost step that protects the rest of the engine cooling system.
Part Details
| Part Number | 139215GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Radiator Cap, DF972 |
Compatibility & Fitment
| Name | Model |
|---|---|
| GS-2669RT | GS-2669RT |
| GS-3369RT | GS-3369RT |
| GS-4069RT | GS-4069RT |
| Z-34/22 IC | Z-34/22 IC |
| Z-34 IC | Z-34 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.
