The Genie 1284657GT is a genuine OEM Alternator Washer for the GM 3.0L engine, designed for Genie S-series telescopic boom lifts and Z-series articulating boom lifts. As a direct OEM replacement, this washer is built to the same specifications as the original component, ensuring a correct, secure fit within the alternator mounting system. This part is confirmed to fit the S-80X, S-80, S-85, S-80 XC, S-85 XC, S-80 HF, S-85 HF, and Z-80/60 — cross-reference part number 1284657GT against your parts manual before ordering to confirm compatibility with your specific machine configuration.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to Genie's original specification for the GM 3.0L engine alternator mounting, ensuring correct seating and clamping load every time.
- Direct OEM Replacement — Installs in place of the original washer with no rework required; retains the factory mounting geometry for the alternator assembly.
- Broad S and Z Boom Compatibility — Fits a wide range of Genie telescopic and articulating boom lifts powered by the GM 3.0L engine, including S-80, S-85, and Z-80/60 variants.
- Protects Alternator Mounting Integrity — A correctly sized washer distributes clamping force evenly across the alternator bracket; a worn or incorrect washer can allow fastener movement, leading to vibration damage and electrical charging faults.
- Electrical System Safety — A secure alternator mount is essential for consistent charging output on elevated work platforms; looseness in the mounting hardware can contribute to intermittent power loss at height.
The alternator washer is a precision hardware component that sits within the alternator mounting assembly on the GM 3.0L engine, providing a stable bearing surface for the mounting fastener. Its role is to distribute clamping load evenly so the alternator remains firmly secured against engine vibration during operation. When this washer is missing, deformed, or the wrong size, the alternator can shift under load, causing accelerated wear on mounting hardware, belt misalignment, and unreliable electrical output — all of which can affect machine function on the job.
Part Details
| Part Number | 1284657GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Alternator Washer, GM 3.0L Engine |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| Z-80/60 | Z-80/60 |
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.
