The Genie 110771-74BJ9GT Roller Limit Switch is a genuine OEM electrical component designed for Genie S-100, S-105, S-120, and S-125 telescopic boom lifts. As a direct OEM replacement, this switch meets Genie's original design and performance standards, giving you confidence that it will integrate correctly with your machine's existing wiring and control circuitry. Cross-reference part number 110771-74BJ9GT against your machine's parts manual to confirm it is the correct item for your unit before ordering.
Key Features
- Gold-Contact Electrical Integrity — Gold-rated NO/NC contacts deliver low-resistance, corrosion-resistant switching action critical to consistent signal output in demanding jobsite environments.
- Genuine OEM Construction — Manufactured to Genie's original specifications, this switch matches the dimensional and electrical characteristics of the part it replaces — no adaptation needed.
- Dual NO/NC Configuration — Normally open and normally closed contacts in a single unit provide control-circuit flexibility and make this switch a direct fit for the machine's original switching arrangement.
- Confirmed Fitment for S-Series Booms — Built for Genie S-100, S-105, S-120, and S-125 telescopic boom lifts, ensuring the switch seats and functions as the original did.
- Operational Safety Relevance — Limit switches are detection components in boom-lift control circuits. A worn or failed switch can cause incorrect position sensing, directly affecting safe machine operation and operator controls.
A roller limit switch is a position-sensing device that detects when a moving machine component reaches a defined point of travel. The roller-tipped actuator trips the switch mechanism as a part moves past it, sending a signal to the control system to respond — stopping motion, enabling a function, or triggering a safety interlock. On telescopic boom lifts such as the Genie S-100, S-105, S-120, and S-125, this type of switch plays a direct role in monitoring the position of boom or platform elements. When the switch wears out or fails, position signals become unreliable, which can lead to erratic machine behavior or the activation of protective shutdown conditions — making prompt replacement with the correct OEM part essential.
Part Details
| Part Number | 110771-74BJ9GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Roller Limit Switch, NO/NC Gold |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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.
