The Genie 1258344GT is a genuine OEM GRC SL Proportional Upgrade Kit, CE, designed for the Genie GRC-12 vertical mast lift. This kit converts the lift from a 2-speed lift system to proportional lift control, delivering smoother, more precise platform movement. A software upgrade is required to complete the conversion and is available online or via USB flash drive as referenced in bulletin 504.1. Verify fitment against your machine's serial number before ordering — this kit applies to GRC-12 units up to SN GRC14-1999.
Key Features
- Genuine OEM Engineering — Sourced directly from Genie, this kit meets the exact dimensional and electrical specifications required for a correct, compliant conversion on CE-marked machines.
- Direct Conversion Fit — Engineered specifically for the GRC-12, this kit installs into the existing lift system without adapting or fabricating additional hardware.
- Proportional Lift Control Upgrade — Replaces the stepped 2-speed lift response with smooth, variable lift movement, giving operators finer control over platform positioning.
- Confirmed GRC-12 Fitment — Verified for Genie GRC-12 vertical mast lifts to SN GRC14-1999. Cross-reference your serial number before ordering.
- Software Upgrade Required — The complete conversion requires a software update, available online or by USB flash drive per bulletin 504.1 — ensure both the kit and software are obtained together for a fully functional result.
Proportional lift control replaces a fixed 2-speed lift response with continuously variable speed, allowing the operator to raise and lower the platform at any rate within the system's range rather than switching between preset speeds. On a vertical mast lift like the GRC-12, this translates to more accurate placement of the platform at height — particularly useful in confined or overhead work environments. A machine still operating on 2-speed lift logic cannot take advantage of this refined control until the full conversion, including the required software upgrade, is completed.
Part Details
| Part Number | 1258344GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | GRC SL Proportional Upgrade Kit, CE (2-Speed to Proportional Lift Conversion) |
Compatibility & Fitment
| Name | Models |
|---|---|
| GRC-12 | GRC-12 |
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.
