The Genie 52891GT is a genuine OEM Lock Washer, 4-40 designed for Genie Z-series articulating boom lifts, including the Z-45/25, Z-45/25J DC, Z-45/25J Bi-Energy, and Z-34/22 Bi-Energy. As a direct OEM part sourced through the original manufacturer, this lock washer carries the same specifications as the hardware installed at the factory. Cross-reference part number 52891GT against your parts manual to confirm the correct application before ordering.
Key Features
- Genuine OEM Fastener Integrity — Manufactured to the exact thread pitch and hardness spec of the original hardware, ensuring the fastener performs as intended in its mounting application.
- Direct-Fit Hardware — This 4-40 lock washer seats and torques correctly in its designed position without rework, keeping assembly straightforward during maintenance or repair.
- Broad Z-Series Compatibility — Fits Genie Z-45/25, Z-45/25J DC, Z-45/25J Bi-Energy, and Z-34/22 Bi-Energy articulating boom lifts, covering multiple platform variants in the Z-series lineup.
- Vibration Resistance — The locking profile bites into mating surfaces to resist loosening under the vibration and dynamic loads common in boom lift operation, maintaining joint clamping force over time.
- Structural Connection Compliance — On aerial work platforms, fastener integrity is a genuine safety consideration; using the correct OEM-specified hardware keeps critical connections within design tolerances.
A lock washer is a thin, hardened fastener placed beneath a nut or bolt head to prevent the fastener from backing out due to vibration or dynamic loading. On articulating boom lifts like the Z-45/25 and Z-34/22 series, mechanical assemblies are subject to continuous movement and vibration during operation, which can gradually loosen standard fasteners. When a lock washer wears flat, loses its spring tension, or is omitted during reassembly, the fastener joint becomes vulnerable to loosening — potentially compromising the integrity of the component it secures. Replacing a worn or damaged lock washer with the correct OEM part restores the locking action the assembly depends on.
Part Details
| Part Number | 52891GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Lock Washer, 4-40 |
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 |
| Z-34/22 Bi-Energy | Z-34/22 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.
