The Genie 1256457GT is a genuine OEM Lock Washer, M6, ZAB built for Genie GTH telehandlers and Z-series articulating boom lifts. As a factory-sourced component, this washer meets the exact dimensional and material standards specified by Genie for the machines it serves. Compatible models include the GTH-636, GTH-844, GTH-1056, Z-45/25 IC, Z-45 XC, Z-51/30J, Z-60 DC, Z-80/60, and ZX-135/70, making it a practical stocking item for fleets running a mix of Genie telehandlers and booms. Confirm part number 1256457GT against your machine's parts manual before ordering to ensure it is the correct item for your unit.
Key Features
- Genuine OEM Material and Dimensional Conformity — Produced to Genie's M6 specification with a ZAB finish, matching the exact grade and sizing required at the fastened joint.
- Direct Replacement Fit — Sized and profiled to seat correctly in the fastener stack without shimming or modification, restoring the connection to its original clamped condition.
- Broad Genie Fitment — Fits GTH-series telehandlers (GTH-636, GTH-844, GTH-1056) and multiple Z-series articulating booms (Z-45/25 IC, Z-45 XC, Z-51/30J, Z-60 DC, Z-80/60, ZX-135/70).
- Secure Fastener Retention — A lock washer resists loosening under vibration and load cycling, maintaining bolt clamping force at critical joints throughout the service interval.
- Operational Safety Relevance — On aerial lifts and telehandlers, fastener integrity at structural and mechanical joints is directly linked to safe operation; replacing a damaged or missing washer with the correct OEM part restores that integrity.
A lock washer is placed under a bolt or nut to resist loosening caused by vibration, dynamic loading, and thermal cycling. The spring or toothed profile bites into the fastener and the mating surface, maintaining clamping force even as the machine flexes and moves during operation. When a lock washer is worn flat, corroded, or missing, the fastener it secures can work loose over time, leading to joint movement, accelerated wear of surrounding components, or outright fastener loss. Replacing a compromised washer with the correct OEM part — cross-referenced by part number 1256457GT — restores the joint to its designed clamping condition and prevents secondary damage.
Part Details
| Part Number | 1256457GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Lock Washer, M6, ZAB |
Compatibility & Fitment
| Name | Models |
|---|---|
| GTH-636 | GTH-636 |
| GTH-844 | GTH-844 |
| GTH-1056 | GTH-1056 |
| Z-45 XC | Z-45 XC |
| Z-45/25 IC | Z-45/25 IC |
| Z-51/30J | Z-51/30J |
| Z-60 DC | Z-60 DC |
| Z-80/60 | Z-80/60 |
| 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.
