The Genie 128939GT is a genuine OEM Relay Harness, PBOX Jib Option built for the Z-45/25, Z-45/25J DC, and Z-45/25J Bi-Energy articulating boom lifts. As a direct OEM replacement, this harness is manufactured to the same specification as the original, ensuring correct fit and proper function within the jib option power box circuit. Cross-reference part number 128939GT against your machine's parts manual to confirm it is the correct assembly for your unit before ordering.
Key Features
- Genuine OEM Construction — Produced to Genie's original specification, with correct connector types, wire gauges, and relay configuration for the PBOX jib option circuit.
- Direct-Fit Replacement — Designed to connect and seat exactly as the original harness, with no adaptation or re-pinning required at installation.
- Confirmed Fitment — Fits the Z-45/25, Z-45/25J DC, and Z-45/25J Bi-Energy articulating boom lifts; always verify against your serial-number-specific parts manual.
- Electrical Integrity — A sound relay harness maintains proper signal routing to the jib option power box, keeping jib controls responsive and consistent during operation.
- Operational Safety — Electrical harness integrity is critical on aerial equipment; a damaged or incorrect harness can cause erratic control behavior, making prompt replacement with the correct OEM part essential.
The relay harness for the PBOX jib option routes electrical signals and relay switching between the power box and the jib control circuit on compatible Z-series articulating boom lifts. When this harness is damaged, corroded, or has a failed relay connection, the jib function may become unresponsive or behave erratically, taking the machine out of productive service. Replacing it with the correct OEM assembly restores proper electrical continuity and ensures the jib option operates as intended.
Part Details
| Part Number | 128939GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Relay Harness, PBOX Jib Option |
Compatibility & Fitment
| Name | Model |
|---|---|
| Z-45/25 | Z-45/25 |
| Z-45/25J DC | Z-45/25J DC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
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.
