The Honda 90403-Z6L-000 Washer (6x16) is a genuine OEM washer designed for EB10000 generators and Honda GX630, GX660, GX690, GX700, GX800, GXV630, GXV660, and GXV690 engines. As a direct Honda OEM component, this washer carries the exact dimensions Honda specifies for these applications, ensuring a correct fit without guesswork. Verify your machine's serial number against the fitment table before ordering, as Honda supersedes hardware at serial breaks across these engine families.
Key Features
- Genuine Honda OEM Hardware — sourced directly from Honda, this washer meets the dimensional tolerances specified for these engines and generators rather than an approximation of them.
- Broad Fitment Across Two Engine Families — listed for GX-series horizontal shaft engines including GX630, GX660, GX690, GX700, and GX800, as well as GXV-series vertical shaft engines including GXV630, GXV660, and GXV690, and the EB10000 generator.
- Check Your Serial Number — Honda updates hardware part numbers at defined serial breaks; confirm your machine's serial number against the compatibility table to ensure this is the correct washer for your unit.
A washer of this size serves as a load-distributing component, spreading clamping force evenly across the fastened surface and helping fasteners maintain consistent tension during engine or generator operation. When the correct washer is in place, fasteners seat properly and retain their torque over time. Using an incorrect size or an absent washer can lead to uneven clamping, fastener loosening, and potential damage to the surrounding components.
Part Details
| Part Number | 90403-Z6L-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Washer (6x16) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB10000 | All |
| Horizontal Shaft Engine | GX630, GX660, GX690, GX700, GX800 | 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.
