The Honda 90563-ZA0-000 Plain Washer (6MM) is a genuine OEM replacement designed for EL5000, ES6500, and EX5500 generators as well as HT3813 and HT4213 lawn tractors. As a Honda OEM part, it is manufactured to the exact dimensions Honda specifies, ensuring the correct fit across every application in the fitment list. Because Honda supersedes and revises parts at serial breaks, verify your machine's serial number against the fitment table before ordering. This Plain Washer (6MM) is a straightforward, direct-replacement component — confirm part number 90563-ZA0-000 against your model and serial to be certain this is the correct listing for your unit.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this washer meets the exact dimensional tolerances specified for each machine in the fitment list.
- Broad Cross-Machine Fitment — listed for EL5000, ES6500, and EX5500 generators and HT3813 and HT4213 lawn tractors; check your serial number against the fitment table to confirm the correct application.
- Consistent Load Distribution — a properly sized 6MM washer distributes clamping load evenly across the fastened surface, helping maintain secure, stable assemblies over the life of the machine.
A plain washer is a flat, ring-shaped hardware component placed beneath a fastener — typically a bolt head or nut — to spread the clamping force over a larger surface area. This prevents the fastener from pulling into or damaging the material being joined and helps maintain consistent clamp load during operation. When the correct washer is missing or substituted with an incorrect size, clamping force becomes uneven, fasteners can work loose over time, and the surfaces they bear against may become damaged.
Part Details
| Part Number | 90563-ZA0-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Plain Washer (6MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EL5000, ES6500, EX5500 | 1131492-1142975 |
| Lawn Tractor | HT3813, HT4213 | 1131492-1142975 |
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.
