The Genie 1258351GT is a genuine OEM QSW ANSI SL Proportional Upgrade Kit designed for Genie QS-series QuickStock mast lifts, including the QS-12W, QS-15W, and QS-20W, up to serial number QS14-1999. This kit converts the lift function from 2-speed operation to proportional lift control, giving operators smoother, more precise positioning at height. A required software upgrade accompanies this conversion and is available online or via USB flash drive — refer to service bulletin 503.1 for USB flash drive details. As a genuine OEM part, it is built to Genie's exact specifications and integrates directly with the machine's existing controls.
Key Features
- Genuine OEM Engineering — Manufactured to Genie's exact dimensional and electrical specifications, ensuring this kit matches the performance requirements of the QS-series platform.
- 2-Speed to Proportional Lift Conversion — Upgrades lift control from a 2-speed system to fully proportional operation, giving operators smoother and more responsive height adjustment.
- Software Upgrade Included — The required control software upgrade is available online or through an USB flash drive referenced in service bulletin 503.1, making the conversion complete and field-ready.
- Confirmed Fitment — Designed for Genie QS-12W, QS-15W, and QS-20W QuickStock mast lifts up to serial number QS14-1999; cross-reference part number 1258351GT against your parts manual before ordering.
- Operator Control and Precision — Proportional lift control reduces abrupt movement at height, supporting more accurate load placement and smoother workflow in stock-picking applications.
A 2-speed lift system moves the platform in fixed increments — fully on or fully off — which can make precise positioning more demanding, especially at height. This upgrade kit converts that system to proportional lift control, where platform speed responds directly to operator input for smoother, more graduated movement. When lift control becomes jerky, inconsistent, or fails to respond correctly, productivity and operator confidence both suffer; completing this conversion with the correct OEM kit restores precise, compliant lift operation to the machine.
Part Details
| Part Number | 1258351GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | QSW ANSI SL Proportional Upgrade Kit |
Compatibility & Fitment
| Name | Models |
|---|---|
| QS-12W | QS-12W |
| QS-15W | QS-15W |
| QS-20W | QS-20W |
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.
