The Honda 90401-880-000 Washer (10X30X3.5T) is a genuine OEM washer designed for Honda E3500, E4500, ES3500, ES4500, HR216, HRA215, HRA216, HRC215, and HRC216 generators and lawn mowers. As a genuine Honda OEM part, it is manufactured to the exact dimensions specified for these machines, ensuring the correct load distribution and clamping performance the application requires. If you are servicing any of the listed models, confirming the part number 90401-880-000 against your machine's serial number and parts diagram before ordering is always the right move, as Honda does supersede parts at production breaks.
Key Features
- Genuine OEM Dimensional Accuracy — produced to Honda's exact 10 mm inner diameter, 30 mm outer diameter, and 3.5 mm thickness specification, so load is distributed correctly at the fastened joint
- Direct OEM Replacement — drops in as a like-for-like replacement with no trimming or fitting, carrying the Honda part number 90401-880-000 for straightforward parts-counter verification
- Broad Model Coverage — listed for Honda E3500, E4500, ES3500, ES4500 generators and HR216, HRA215, HRA216, HRC215, HRC216 lawn mowers
- Serial Number Verification Recommended — Honda updates part specifications at serial number breaks, so cross-check your machine's serial number against the fitment table to confirm this washer is correct for your unit
A washer of this size serves as a bearing surface between a fastener — typically a bolt head or nut — and the component it secures, spreading the clamping load across a wider area to prevent the fastener from pulling through or distorting the mating surface. At the correct thickness and diameter, the washer maintains proper clamping force throughout the service life of the assembly. A washer that is undersized, oversized, or worn thin can allow fasteners to work loose under vibration, leading to rattles, misalignment, or accelerated wear at the joint.
Part Details
| Part Number | 90401-880-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Washer (10X30X3.5T) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | E3500, E4500, ES3500, ES4500 | All |
| Lawn Mower | HR216, HRA215, HRA216, HRC215, HRC216 | 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.
