The Genie 84428GT is a genuine OEM Hydac Valves 84351GT Seal Kit built for the Genie TZ-34/20 trailer-mounted articulating boom lift. As a factory-sourced part, it delivers the exact sealing materials and dimensional conformity required for the valves it services, with no substitutions or compromises. Cross-reference part number 84428GT against your TZ-34/20 parts manual to confirm it is the correct kit for your unit before ordering.
Key Features
- Genuine OEM Sealing Materials — Factory-sourced seal compounds and dimensions matched exactly to Hydac Valves 84351GT, ensuring correct compression and fluid retention from installation.
- Complete Kit for Valves 84351GT — All seals needed to service Hydac Valves 84351GT are included in a single kit, simplifying the rebuild process and eliminating piecemeal sourcing.
- Designed for the TZ-34/20 — Confirmed fitment for the Genie TZ-34/20 trailer-mounted articulating boom lift, so you can order with confidence for that machine.
- Restores Valve Integrity — Worn or degraded seals allow fluid past the valve, causing inconsistent operation or loss of function. A fresh seal kit restores proper valve sealing and consistent performance.
- Operational Safety on Aerial Equipment — Properly sealed valves are critical to predictable boom movement and control response. Using the correct OEM kit keeps the hydraulic valve circuit functioning as designed on a manned aerial lift.
A seal kit services the internal seals within a valve assembly, replacing O-rings, backup rings, and other sealing elements that wear or harden over time. When these seals degrade, fluid can bypass the valve internals, leading to sluggish or erratic boom response and potential fluid loss. Replacing the seals in Hydac Valves 84351GT with the correct kit restores a tight, leak-free valve that responds predictably — keeping the TZ-34/20 operating as intended and supporting safe, controlled boom movements at height.
Part Details
| Part Number | 84428GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hydac Valves 84351GT Seal Kit |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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.
