The Genie 139315GT is a genuine OEM Motor/Brake O-Ring built for Genie S series telescopic boom lifts, SX series super-boom lifts, and Z and ZX series articulating boom lifts. As a direct OEM replacement, this part is manufactured to the same standards as the original, ensuring correct dimensional fit at the motor and brake interface. Compatible models include the S-60, S-65, S-80, S-85, S-60 XC, S-60 HC, S-60 TRAX, S-65 TRAX, S-80X, S-80 XC, S-80 HF, S-85 XC, S-85 HF, SX-135 XC, SX-150, SX-180, Z-62/40, Z-80/60, Z-135/70, and ZX-135/70. Cross-reference part number 139315GT against your machine's parts manual before ordering to confirm it is the correct item for your unit.
Key Features
- Genuine OEM Material Grade — Produced to Genie's original compound and dimensional specification, delivering the correct compression and sealing profile at the motor/brake interface.
- Exact-Fit Replacement — Seats directly in the original groove without modification, maintaining the correct seal geometry for consistent contact.
- Broad Boom Lift Coverage — Fits a wide range of Genie S, SX, and Z/ZX series boom lifts, making it a practical stocking item for mixed fleets.
- Leak Prevention — A sound O-ring at the motor/brake junction prevents fluid weeping that can lead to contamination, component wear, and unplanned service intervals.
- Operational Safety — The motor/brake assembly is a critical system on an aerial boom lift; maintaining a correctly seated seal supports consistent brake and motor function at height.
An O-ring is a circular elastomeric seal that sits in a machined groove between two mating components, compressing to form a leak-free barrier when the joint is assembled. At the motor and brake interface on a Genie boom lift, this seal prevents fluid from escaping the assembly under operating pressure and keeps contaminants from entering. When an O-ring hardens, cracks, or is damaged during service, the seal is broken — fluid loss or contamination follows, which can affect motor and brake performance and require immediate attention. Replacing a worn O-ring with the correct OEM part restores the original sealing integrity and keeps the assembly operating as designed.
Part Details
| Part Number | 139315GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Motor/Brake O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| S-60 | S-60 |
| S-65 | S-65 |
| S-60X | S-60X |
| S-60 XC | S-60 XC |
| S-60 HC | S-60 HC |
| S-60 TRAX | S-60 TRAX |
| S-65 TRAX | S-65 TRAX |
| SX-150 | SX-150 |
| SX-180 | SX-180 |
| SX-135 XC | SX-135 XC |
| 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-135/70 | Z-135/70 |
| Z-62/40 | Z-62/40 |
| Z-80/60 | Z-80/60 |
| ZX-135/70 | ZX-135/70 |
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.
