The Honda 90446-Z7E-000 Washer (8.2X17X0.8) is a genuine OEM component designed for select Honda generators and horizontal shaft engines, including the EB3800, EB4000, EB5000, EB6500, EM3800, EM4000, EM5000, EM6500, GX270, and GX390. As a Honda OEM part, it is manufactured to the exact dimensions specified for each compatible application. Confirm your machine's model and serial number against the fitment table to ensure this washer is the correct listing for your unit.
Key Features
- Genuine Honda OEM — sourced directly from Honda, matching the original washer in every dimension so it seats and clamps correctly in service
- Precise Dimensional Profile — the 8.2 mm inner diameter, 17 mm outer diameter, and 0.8 mm thickness are the exact values Honda specifies; any deviation in a washer this size can affect clamping load and sealing at the fastened joint
- Broad Fitment Coverage — listed for Honda EB- and EM-series generators including the EB3800, EB4000, EB5000, and EB6500, as well as GX270 and GX390 horizontal shaft engines
- Verify Before Ordering — Honda updates part listings at serial number breaks; always match your machine's serial number against the fitment table to confirm part number 90446-Z7E-000 is correct for your specific unit
A washer of this size distributes the clamping force of a fastener over a wider surface area, preventing the fastener head or nut from pulling through or deforming the material it bears against. In Honda generators and GX-series engines, washers like this one are used at a variety of fastened joints to maintain proper load distribution and keep assemblies secure through the vibration and heat cycles of normal operation. A missing or incorrectly sized washer can result in uneven clamping, loosening over time, or damage to the mating surface.
Part Details
| Part Number | 90446-Z7E-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Washer (8.2X17X0.8) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3800, EB4000, EB5000, EB6500, EM3800, EM4000, EM5000, EM6500 | All |
| Horizontal Shaft Engine | GX270, GX390 | 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.
