The Genie 1257390GT Flat Washer, #8, SAE, ZAG is a genuine OEM fastener built for a wide range of Genie equipment, including GS scissor lifts, S and SX telescopic boom lifts, Z and ZX articulating boom lifts, GTH telehandlers, and select Genie light towers and trailer-mounted booms. As a direct OEM replacement, part number 1257390GT is manufactured to the same dimensional and material standards as the original, ensuring a correct fit every time. Cross-reference 1257390GT against your machine's parts manual to confirm it is the right washer for your application before ordering.
Key Features
- SAE Standard Sizing — Cut to SAE #8 dimensions for consistent load distribution and proper seating against mating fasteners and surfaces.
- Exact OEM Fit — Replaces the original washer directly, with no reworking or modification needed at the installation point.
- Broad Equipment Compatibility — Fits Genie GS scissor lifts, S and SX telescopic booms, Z and ZX articulating booms, GTH telehandlers, TZ trailer-mounted booms, and RL light towers.
A flat washer distributes the clamping load of a bolt or screw across a wider surface area, protecting the material being fastened and helping the fastener maintain its holding force over time. Without the correct washer in place, a fastener can pull through, loosen prematurely, or damage the surface it contacts. Using the correct OEM-specification washer — matched in size, material, and finish — keeps every bolted joint performing as the machine was designed to operate.
Part Details
| Part Number | 1257390GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Flat Washer, #8, SAE, ZAG |
Compatibility & Fitment
| Name | Models |
|---|---|
| GS-1330m | GS-1330m |
| GS-1932 | GS-1932 |
| GS-4655 | GS-4655 |
| GTH-636 | GTH-636 |
| GTH-844 | GTH-844 |
| GTH-1056 | GTH-1056 |
| GTH-1256 | GTH-1256 |
| RL4 LED Vertical Mast | RL4 LED Vertical Mast |
| S-45 XC | S-45 XC |
| S-60 J | S-60 J |
| S-65 XC | S-65 XC |
| S-80 J | S-80 J |
| S-85 XC | S-85 XC |
| SX-125 XC | SX-125 XC |
| SX-135 XC | SX-135 XC |
| TZ-50/30 | TZ-50/30 |
| Z-33 DC Power | Z-33 DC Power |
| Z-34/22 IC | Z-34/22 IC |
| Z-34/22 N | Z-34/22 N |
| Z-45 XC | Z-45 XC |
| Z-45/25 | Z-45/25 |
| Z-45/25 IC | Z-45/25 IC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| Z-45/25J DC | Z-45/25J DC |
| Z-51/30J | Z-51/30J |
| Z-62/40 | Z-62/40 |
| Z-80/60 | Z-80/60 |
| Z33/18 | Z33/18 |
| ZX-135/70 | ZX-135/70 |
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.
