The Genie 110771-74B69GT Roller Limit Switch is a genuine OEM electrical component built for Genie S series telescopic boom lifts, including the S-100HD, S-120HD, S-125, S-105, S-100, S-120, S-3200, and S-3800. As a direct OEM replacement, this switch is built to Genie's exact specifications, ensuring correct actuation characteristics and contact ratings without adaptation. Cross-reference part number 110771-74B69GT against your machine's parts manual to confirm it is the right switch for your specific unit before ordering.
Key Features
- Gold-Contact Electrical Integrity — Gold-rated NO/NC contacts deliver consistent signal performance and resistance to oxidation, maintaining reliable switching in demanding jobsite environments.
- Roller Actuator Design — The roller actuator allows smooth, repeatable mechanical triggering, reducing contact wear and extending service life compared to standard plunger-style switches.
- Genuine OEM Specification — Manufactured to Genie's original design tolerances, so the switch mounts, wires, and actuates exactly as the original, with no custom fitting or wiring changes needed.
- Broad S Series Compatibility — Fits a wide range of Genie S series telescopic boom lifts, including HD variants and long-boom models, making it a practical stocking part for fleets running multiple S series machines.
- Operational Safety — Limit switches play a direct role in controlling machine motion and position sensing on aerial boom lifts. A faulty or worn switch can cause incorrect control responses; replacing it with a correctly spec'd OEM part restores proper machine behavior.
A limit switch is an electromechanical device that detects the position or movement of a machine component and sends a signal to the control system to allow, stop, or redirect that motion. On telescopic boom lifts, limit switches are used at key points in the boom's range of travel to enforce operational boundaries and protect both the machine and the operator. The roller actuator on this switch trips the internal contacts — wired as normally open (NO) and normally closed (NC) — when physical contact is made, completing or breaking the relevant control circuit. When a limit switch fails or produces an intermittent signal, the machine's control system may not respond correctly to boom position, which can result in unexpected behavior or a machine that will not function at all. Replacing a worn switch promptly with the correct OEM part keeps the control logic working as designed.
Part Details
| Part Number | 110771-74B69GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Roller Limit Switch, NO/NC Gold |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-100HD | S-100HD |
| S-120HD | S-120HD |
| S-3800 | S-3800 |
| S-3200 | S-3200 |
| S-120 | S-120 |
| S-125 | S-125 |
| S-100 | S-100 |
| S-105 | S-105 |
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.
