The Honda 90412-ZE5-000 Thrust Washer (25MM) is a genuine OEM component designed for HRM21 and HRS21 lawn mowers. As a direct Honda OEM part, it carries the exact dimensions and material specification Honda engineers selected for this application. This washer is listed for the HRM21 and HRS21 — confirm your mower's model and serial number against the fitment table before ordering to make sure this is the correct variant for your unit.
Key Features
- Genuine Honda OEM — sourced directly from Honda, so dimensions and thickness match the original specification exactly, preserving the axial clearance the design calls for.
- 25MM Sizing — the (25MM) designation identifies this as a specific variant; verify your mower's parts diagram calls for this size before ordering.
- Fits HRM21 and HRS21 Mowers — confirmed fitment for both models, though Honda supersedes components at serial breaks, so always cross-check your serial number against the compatibility table.
- Axial Load Control — a correctly sized thrust washer manages end-play and prevents excess axial movement, protecting adjacent rotating components from premature wear.
A thrust washer is a flat bearing component that controls axial (end-to-end) movement along a rotating shaft. It sits between two mating surfaces and carries the thrust load that would otherwise cause those surfaces to rub directly against each other. On a lawn mower, thrust washers are used at key rotating interfaces to maintain the correct running clearance between parts. When a thrust washer wears thin or goes missing, the resulting excess play accelerates wear on the surrounding components and can lead to noise, vibration, or eventual failure of the assembly it supports.
Part Details
| Part Number | 90412-ZE5-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Thrust Washer (25MM) |
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.
