The Genie 990470GT Lock Washer, 3/8 ZP is a genuine OEM fastening component built for Genie and Terex portable light towers, including the AL4000, AL5000, AL5HT, RL4, RL4 LED Vertical Mast, and AL4 series. As a direct OEM replacement, this washer meets the original dimensional and material specifications set by Genie, ensuring a correct fit without rework or modification. Cross-reference part number 990470GT against your machine's parts manual to confirm it is the right item for your unit.
Key Features
- Direct OEM Replacement — Seats and torques exactly as the original, allowing straightforward installation without additional hardware or adaptation.
- Broad Light Tower Compatibility — Fits AL4, AL4000, AL5, AL5HT, AL5 with Vertical Mast, RL4, RL4 Vertical Mast, and RL4 LED Vertical Mast units.
- Secure Fastening Integrity — A serviceable lock washer maintains clamping load under vibration; a worn or missing one allows fasteners to back off and connections to loosen.
A lock washer sits between a fastener — typically a bolt or nut — and the mating surface it secures. Its spring action and bite into both surfaces resist loosening caused by vibration and operational movement. When a lock washer is worn flat, cracked, or missing, the fastener can back out over time, allowing components to shift or separate. Replacing a damaged lock washer with the correct OEM part restores clamping integrity and keeps the assembly held firmly in place.
Part Details
| Part Number | 990470GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Lock Washer, 3/8 ZP |
Compatibility & Fitment
| Name | Models |
|---|---|
| AL4 | AL4 |
| AL5 | AL5 |
| AL5 with Vertical Mast | AL5 with Vertical Mast |
| AL5HT | AL5HT |
| AL4000 | AL4000 |
| AL5000 | AL5000 |
| RL4 | RL4 |
| RL4 LED Vertical Mast | RL4 LED Vertical Mast |
| RL4 Vertical Mast | RL4 Vertical Mast |
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.
