The Genie 87990GT is a genuine OEM Upper Boom Cylinder Extension Hose Assembly built for the Genie TZ-34/20 trailer-mounted articulating boom lift. As a direct OEM replacement, this assembly is manufactured to the same specifications as the original, ensuring a correct fit and proper connection within the upper boom circuit it serves. Cross-reference part number 87990GT against your TZ-34/20 parts manual to confirm this is the correct assembly for your unit before ordering.
Key Features
- Genuine OEM Construction — Built by Genie to original equipment specifications, with correct end fittings, hose grade, and routing dimensions for the upper boom cylinder extension circuit.
- Exact-Position Replacement — Engineered specifically for the upper boom cylinder extension position on the TZ-34/20, connecting directly at the factory routing points without modification.
- TZ-34/20 Fitment Confirmed — Designed for the Genie TZ-34/20 trailer-mounted articulating boom, keeping this model's boom extension circuit correctly supplied.
- Fluid Integrity Maintained — A sound hose assembly preserves proper fluid delivery to the cylinder; a cracked, worn, or weeping hose disrupts extension function and should be replaced promptly with the correct OEM part.
- Operational Safety — On an aerial boom lift, a compromised hose in the cylinder circuit can affect boom extension control. Using the correct OEM assembly helps maintain the reliable operation this equipment depends on.
A hose assembly in the upper boom cylinder extension position carries fluid to and from the cylinder that drives boom extension on the TZ-34/20. When this assembly is intact and correctly seated, the cylinder receives consistent fluid flow, allowing the boom to extend and retract as the operator commands. A hose that is cracked, kinked, or leaking at its fittings will reduce or interrupt fluid delivery to the cylinder, causing sluggish or uncontrolled extension movement — a condition that takes the machine out of service until the assembly is replaced.
Part Details
| Part Number | 87990GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Upper Boom Cylinder Extension Hose Assembly |
Compatibility & Fitment
| Name | Models |
|---|---|
| TZ-34/20 | TZ-34/20 |
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.
