The Honda 90404-Z6L-000 Plain Washer (10MM) is a genuine OEM component designed for GX630, GX660, and GX690 horizontal shaft engines, GXV630, GXV660, and GXV690 vertical shaft engines, and the EB10000 generator. As a direct Honda OEM part, it is manufactured to the same specifications as the original hardware used on the production line. Confirm your machine's serial number against the fitment table before ordering, as Honda updates part numbers at serial breaks and this listing covers specific serial ranges for each model.
Key Features
- Genuine OEM Hardware — sourced directly from Honda, this washer matches the original dimensions and load-bearing surface area specified for these applications
- Broad Model Coverage — listed for GX630, GX660, GX690, GXV630, GXV660, GXV690, and the EB10000 generator, spanning both horizontal and vertical shaft engine families as well as generator applications
- Serial Number Matters — Honda supersedes hardware at production breaks, so check your engine or generator serial number against the compatibility table to confirm this is the correct washer for your unit
- Consistent Clamping Surface — a properly sized plain washer distributes fastener load evenly across the mating surface, helping connections stay secure under the vibration and heat cycles these engines and generators encounter in service
A plain washer serves as a load-distributing interface between a fastener — a bolt head or nut — and the surface it bears against. By spreading the clamping force over a wider area, it prevents the fastener from pulling through or distorting softer material and helps the joint maintain consistent clamping load over time. When a washer is missing, undersized, or deformed, fasteners can loosen under vibration or damage the surrounding material, compromising the integrity of the assembled components.
Part Details
| Part Number | 90404-Z6L-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Plain Washer (10MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB10000 | All |
| Horizontal Shaft Engine | GX630, GX660, GX690 | All |
| Vertical Shaft Engine | GXV630, GXV660, GXV690 | All |
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.
