The Honda 90502-ZA1-811 Plain Washer (6mm) is a genuine OEM replacement designed for EW140, EW170, EW171, and EXW171 welder generators. As a direct OEM part sourced from Honda, this washer matches the exact dimensions and specifications used in original production. Verify your unit's serial number against the fitment table to confirm part number 90502-ZA1-811 is correct for your machine before ordering.
Key Features
- Genuine OEM Fit — sourced directly from Honda, this washer meets the same dimensional standards used when your welder generator was assembled, so it seats correctly without rework or shimming
- Correct 6mm Sizing — the 6mm bore matches the fastener diameter Honda specifies for these assemblies; using an incorrectly sized washer can allow fasteners to loosen or pull through under vibration
- Welder Generator Coverage — listed for the EW140, EW170, EW171, and EXW171 welder generators; confirm your serial number against the fitment table, as Honda occasionally supersedes hardware at serial breaks
A plain washer distributes the clamping load of a fastener across a wider surface area, preventing a bolt head or nut from pulling into or damaging the material beneath it. On welder generators like the EW140, EW170, EW171, and EXW171, hardware of this type helps maintain secure, stable assemblies across the machine's frame and components despite the vibration these units produce during operation. When a washer is missing, undersized, or deformed, fasteners can work loose or damage mating surfaces over time, compromising the integrity of the assembly.
Part Details
| Part Number | 90502-ZA1-811 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Plain Washer (6mm) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Welder Generator | EW140 | 1002412-9999999 |
| Welder Generator | EW170, EW171, EXW171 | 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.
