The Genie 62779GT Seal Kit Master Cylinder is a genuine OEM replacement kit designed for the TMZ-50/30 and TMZ-17/10 trailer-mounted articulating boom lifts. As a factory-sourced assembly, this kit delivers the exact seals specified for master cylinder 48028, ensuring a correct, consistent repair every time. Cross-reference part number 62779GT against your machine's parts manual to confirm it is the right kit for your serial range before ordering.
Key Features
- OEM-Grade Seal Materials — Genuine Genie seals are manufactured to the same material grade and dimensional tolerances as the original components, maintaining the integrity of the master cylinder assembly.
- Direct Cylinder Fit — Engineered specifically for master cylinder 48028, the seals in this kit install into the correct bore dimensions without modification or improvisation.
- Confirmed Fitment for TMZ Trailer Booms — Verified compatibility with the TMZ-50/30 and TMZ-17/10 trailer-mounted articulating booms, so you can order with confidence.
- Restores Cylinder Function — Worn or degraded seals allow fluid to bypass the master cylinder, causing sluggish or inconsistent response. A fresh seal kit restores the cylinder to proper operating condition.
- Operational Safety Relevance — The master cylinder plays a direct role in machine control. Using the correct OEM seal kit ensures the repaired cylinder performs as Genie intended, supporting safe machine operation at height.
The master cylinder relies on precision seals to maintain pressure and control fluid flow within the circuit it serves. When those seals wear, crack, or take a set over time, the cylinder loses its ability to hold and transmit pressure correctly — leading to weak, slow, or unresponsive machine movement. Replacing the seals with a correct OEM kit restores the cylinder's pressure-holding capacity and brings performance back to specification. Always cross-reference part number 62779GT against your TMZ parts manual to confirm this is the appropriate kit for your specific unit before beginning the repair.
Part Details
| Part Number | 62779GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Seal Kit, Master Cylinder (48028) |
Compatibility & Fitment
| Name | Model |
|---|---|
| TMZ-50/30 | TMZ-50/30 |
| TMZ-17/10 | TMZ-17/10 |
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.
