The Honda 90401-ZA0-000 Plain Washer (6.5X15) is a genuine OEM replacement designed for a wide range of Honda generators, inverter generators, RV generators, engines, lawn tractors, lawn mowers, and robotic mowers. As an authentic Honda OEM component, this plain washer is manufactured to the same specifications as the original part on the assembly line. This washer is listed across an extensive range of Honda equipment, including the EB2000, EB2200, EU2000, EU2200, EU3200, EG650, EL5000, ES6500, EX5500, EV4010, EV6010, EVD4010, GX360, H4514, H4518, HRA215, HRM3000, HRM310, HRM520, HT3810, HT3813, and HT4213 — always confirm part number 90401-ZA0-000 against your model and serial number before ordering.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this washer matches the original part in every dimension, ensuring it seats and functions exactly as intended.
- Broad Fitment — listed for Honda inverter generators, conventional generators, RV generators, the GX360 horizontal shaft engine, lawn tractors, lawn mowers, and robotic mowers, including the EU2200, EB2200, and HT4213.
- Serial Number Verification — Honda supersedes hardware at production breaks, so cross-check your machine's serial number against the fitment table to confirm this is the correct washer for your unit.
A plain washer serves as a load-distributing interface between a fastener and the surface it bears against. By spreading the clamping force of a bolt or nut across a wider area, it prevents the fastener from pulling through or damaging the mating surface and helps maintain consistent clamp load over time. When the correct washer is absent or worn, fastener joints can loosen prematurely, leading to component movement or accelerated wear at the contact point.
Part Details
| Part Number | 90401-ZA0-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Plain Washer (6.5X15) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EG650, EL5000, ES6500, EX5500 | All |
| Horizontal Shaft Engine | GX360 | All |
| Inverter Generator | EB2000, EB2200, EU2000, EU2200, EU3200 | All |
| Lawn Mower | HRA215 | 1000001-6042384 |
| Lawn Tractor | H4514, H4518, HT3810, HT3813, HT4213 | All |
| Robotic Mower | HRM310, HRM520, HRM3000 | All |
| RV Generator | EV4010, EV6010, EVD4010 | 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.
