The Genie 75869GT is a genuine OEM Lock Washer, 1/4 Inch designed for Genie GRC Runabout vertical mast lifts and TZ and TMZ trailer-mounted articulating boom lifts. As a direct OEM replacement, this washer meets the original engineering specifications Genie requires at the factory — giving you confidence that the hardware holding your machine together is exactly what belongs there. Cross-reference part number 75869GT against your parts manual to confirm fitment before ordering. Compatible models include the GRC-12, TZ-34/20, TZ-50/30, TZ-50, TMZ-34/19, and TMZ-50/30.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Genie's original material and hardness specs, ensuring the washer delivers the correct clamping load and bite for 1/4-inch fastener assemblies.
- Drop-In Replacement — Sized at 1/4 inch to match the original bolt pattern exactly, so this washer seats properly without rework or shimming.
- Broad Model Coverage — Fits the GRC-12 vertical mast lift and the TZ-34/20, TZ-50/30, TZ-50, TMZ-34/19, and TMZ-50/30 trailer-mounted articulating booms in a single part number.
- Vibration Resistance — The locking profile bites into mating surfaces to resist loosening under the mechanical vibration and dynamic loads these machines generate during travel and operation.
- Structural Fastening Integrity — On aerial equipment, loose or missing fasteners can allow structural or hydraulic connections to shift under load; using the correct OEM washer preserves the clamping integrity of critical joint assemblies.
A lock washer is a thin, hardened ring placed under a bolt or nut to prevent the fastener from backing out due to vibration, shock, or cyclic loading. Its split or toothed profile bites into both the fastener face and the mating surface, maintaining tension in the joint even as the machine flexes and moves. When a lock washer is missing, deformed, or substituted with an incorrect size, the fastener can gradually loosen — leading to joint play, hardware loss, or failure of the assembly it was securing.
Part Details
| Part Number | 75869GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Lock Washer, 1/4 Inch |
Compatibility & Fitment
| Name | Model |
|---|---|
| GRC-12 | GRC-12 |
| TZ-34/20 | TZ-34/20 |
| TZ-50/30 | TZ-50/30 |
| TZ-50 | TZ-50 |
| TMZ-34/19 | TMZ-34/19 |
| TMZ-50/30 | TMZ-50/30 |
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.
