The Genie 994830GT is a genuine OEM Lock Washer, M10 ZP designed for Genie and Terex portable light towers, including the AL4000, AL5000, RL4000, TML-4000, and related AL and RL series models. As a direct OEM component, this washer is built to the exact material and dimensional standards specified for these machines, ensuring proper clamp load and corrosion resistance in field conditions. Cross-reference part number 994830GT against your parts manual to confirm fitment for your specific unit before ordering.
Key Features
- Zinc-Plated Corrosion Protection — The M10 ZP zinc plating resists rust and oxidation, maintaining holding strength even after repeated exposure to outdoor jobsite conditions.
- Genuine OEM Construction — Manufactured to Genie's exact spring-tension and hardness specifications for M10 fastener assemblies, ensuring the washer bites and locks as intended without slipping under vibration.
- Direct Drop-In Replacement — Sized to seat correctly on M10 fasteners used throughout AL and RL series light tower assemblies, requiring no modification to existing hardware.
- Broad Light Tower Compatibility — Fits a wide range of Genie and Terex light towers, including AL4, AL4L, AL4000, AL5, AL5L, AL5HT, AL5000, RL4, RL4000, and TML-4000 models.
- Vibration Resistance Where It Counts — Light towers operate with running engines and generator sets that produce constant vibration; a properly functioning lock washer prevents fastener loosening that can lead to structural or electrical connection failures over time.
A lock washer is a hardened, split or toothed ring that sits between a fastener and the mating surface to prevent a nut or bolt from backing out under vibration or thermal cycling. On light tower equipment like the AL and RL series, engine and generator operation creates sustained vibration throughout the frame and mast structures, which can gradually work standard fasteners loose. When a lock washer loses its tension — through wear, over-torquing, or reuse — fastener joints can loosen undetected, potentially affecting mast integrity, panel retention, or electrical connection security. Replacing worn or damaged hardware with a correct OEM-spec component like this one keeps critical connections secure through the full service life of the machine.
Part Details
| Part Number | 994830GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Lock Washer, M10 ZP |
Compatibility & Fitment
| Name | Model |
|---|---|
| AL4000 | AL4000 |
| AL5000 | AL5000 |
| RL4000 | RL4000 |
| TML-4000 | TML-4000 |
| AL5 with Vertical Mast | AL5 with Vertical Mast |
| AL4 | AL4 |
| RL4 | RL4 |
| AL5 | AL5 |
| AL4L | AL4L |
| AL5L | AL5L |
| AL5HT | AL5HT |
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.
