The Honda 90404-PD1-000 Plain Washer (22X6X1.6) is a genuine OEM component designed for HRM21 and HRS21 lawn mowers. As a direct Honda OEM part, it is manufactured to the exact dimensions specified for these mowers, ensuring correct load distribution and fit. Confirm your model and serial number against the fitment table before ordering, as Honda supersedes parts at production breaks and more than one version may have been used across the production run.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this washer meets the exact dimensional specification — 22 mm outer diameter, 6 mm inner diameter, 1.6 mm thickness — called out for these mowers.
- Exact Replacement Fit — manufactured to the same drawing as the original, this part drops straight into place with no rework required.
- Fits HRM21 and HRS21 Lawn Mowers — listed for Honda HRM21 and HRS21 walk-behind mowers; verify your serial number against the compatibility table to confirm the correct version for your unit.
A plain washer distributes the clamping load of a fastener across a wider surface area, protecting the mating material from being damaged or deformed under torque. In a lawn mower, washers like this one ensure fastened assemblies remain secure and properly seated through the vibration and stress of regular operation. Using a washer of the correct diameter and thickness is important — an undersized or oversized replacement can allow fasteners to work loose or bear load unevenly over time.
Part Details
| Part Number | 90404-PD1-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Plain Washer (22X6X1.6) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HRM21, HRS21 | 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.
