The Genie 866090GT is a genuine OEM Kubota D905 Alternator built for Genie AL and RL series light towers and select Z-series articulating boom lifts. As a direct OEM replacement, this alternator is produced to the same specifications as the original unit, ensuring correct output and a proper fit without adaptation. Compatible equipment includes the AL4, AL4000, AL5, AL5HT, AL5 with Vertical Mast, AL5000, RL4, Z-34/22 IC, Z-34 IC, and Z-45/22 MP. Cross-reference part number 866090GT against your machine's parts manual to confirm this is the correct alternator for your unit before ordering.
Key Features
- Genuine OEM Electrical Output — Produced to the same charging specification as the original Kubota D905 alternator, maintaining correct voltage output for the machines it serves.
- Direct OEM Replacement — Designed to install in the same position as the original unit, matching the mounting configuration and connector arrangement of the D905-powered machines.
- Broad Genie Compatibility — Fits Genie AL and RL light towers as well as Z-series articulating boom lifts equipped with the Kubota D905 engine, covering AL4, AL5, AL5HT, AL5000, RL4, Z-34/22 IC, Z-34 IC, and Z-45/22 MP models.
- Charging System Integrity — A properly functioning alternator keeps the battery charged and the electrical system supplied during operation; a failed unit can cause battery drain, warning faults, and unexpected shutdowns.
- Genuine Genie Part — Sourced through the Genie OEM supply chain, so you receive the correct component with the part traceability expected on aerial equipment.
An alternator is the machine's onboard charging source, converting mechanical energy from the engine into electrical energy to power the unit's systems and recharge the battery during operation. On Kubota D905-powered Genie equipment, this component keeps the electrical system stable across lighting, controls, and auxiliary loads. When an alternator weakens or fails, the battery is no longer replenished during engine run time, leading to voltage drops, operational faults, and eventual shutdown — making prompt replacement with the correct OEM part essential to keeping the machine serviceable.
Part Details
| Part Number | 866090GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Kubota D905 Alternator |
Compatibility & Fitment
| Name | Models |
|---|---|
| AL4 | AL4 |
| AL5 | AL5 |
| AL5 with Vertical Mast | AL5 with Vertical Mast |
| AL5HT | AL5HT |
| AL4000 | AL4000 |
| AL5000 | AL5000 |
| RL4 | RL4 |
| Z-34 IC | Z-34 IC |
| Z-34/22 IC | Z-34/22 IC |
| Z-45/22 MP | Z-45/22 MP |
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.
