The Honda 90404-952-770 Special Washer (12MM) is a genuine OEM component designed for the HR21 lawn mower. As a direct Honda OEM part, it is sourced and manufactured to the exact specifications Honda requires for this application. Confirm your serial number against the fitment table to ensure this is the correct washer for your unit before ordering.
Key Features
- Genuine Honda OEM — sourced directly from Honda, so this washer meets the exact dimensional and material specifications called out in the HR21 parts catalogue.
- Correct 12MM Sizing — the (12MM) designation is the variant identifier for this listing; match it to your machine's parts diagram to confirm you have the right washer for your application.
- HR21 Fitment — listed for HR21 lawn mowers; verify your unit's serial number against the compatibility table, as Honda periodically supersedes parts at production breaks.
A special washer serves as a precisely dimensioned fastening component, providing the correct load-bearing surface and spacing between mating parts within the mower's assembly. Unlike a standard flat washer, a "special" washer is engineered to a specific thickness, diameter, or profile to suit a particular mounting arrangement. Using the correctly specified washer ensures components seat and clamp as intended; substituting an incorrect size can lead to improper clamping force, fastener loosening, or accelerated wear at the joint.
Part Details
| Part Number | 90404-952-770 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Special Washer (12MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HR21 | 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.
