The Genie 58387GT is a genuine OEM Motor/Brake O-Ring designed for Genie Z-135/70 and Z-80/60 articulating boom lifts. Sourced directly from Genie, this sealing component meets the exact material and dimensional standards required for correct installation and lasting performance. As a genuine OEM part, it carries the same specifications as the component originally installed at the factory, so there is no guesswork when it comes to fitment or function.
Key Features
- Genuine OEM Sealing Material — Manufactured to Genie's material and compression specifications for this motor/brake application, delivering consistent sealing performance over repeated service cycles.
- Exact-Fit Replacement — Dimensioned to match the original O-ring profile, ensuring correct installation into the motor/brake assembly without modification.
- Fits Genie Z-Series Articulating Boom Lifts — Confirmed fitment for Z-135/70 and Z-80/60 models; cross-reference part number 58387GT against your machine's parts manual before ordering.
- Preserves Sealing Integrity — A sound O-ring keeps fluid contained within the motor/brake circuit; a cracked or compressed-out seal allows fluid loss and can compromise motor and brake function.
- Operational Safety — The motor/brake assembly is a critical system on articulating boom lifts, and maintaining a correct, undamaged seal supports the reliable operation of brake and drive functions at height.
An O-ring is a precision sealing component seated in a machined groove to prevent fluid from escaping between mating surfaces. In a motor/brake assembly on an articulating boom lift, this seal keeps internal fluid pressure contained so the motor and brake can function as designed. When the O-ring degrades — through heat cycling, compression set, or chemical exposure — it loses its ability to seal, allowing fluid to weep or leak. Replacing it promptly with the correct OEM part, such as the 58387GT, restores the integrity of the assembly and prevents the secondary damage that follows unchecked fluid loss.
Part Details
| Part Number | 58387GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Motor/Brake O-Ring (88921) |
Compatibility & Fitment
| Name | Models |
|---|---|
| Z-80/60 | Z-80/60 |
| Z-135/70 | Z-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.
