The Honda 94103-04800 Plain Washer (4MM) is a genuine OEM component designed for EV4000 generators, EW170 welder generators, and HRM3000, HRM310, and HRM520 robotic mowers. As a direct Honda OEM part, this washer matches the original specification exactly, ensuring the correct fit across every listed application. Honda supersedes parts at serial breaks, so confirm your unit's serial number against the fitment table before ordering. If your machine is listed here, part number 94103-04800 is the right washer to order.
Key Features
- Genuine OEM Construction — sourced directly from Honda, this washer meets the same dimensional and material standards as the original hardware installed at the factory
- Correct 4MM sizing — the 4MM designation is the critical matching factor; verify this size against your machine's fastener before installing
- Broad Fitment — listed for EV4000 generators, EW170 welder generators, and HRM3000, HRM310, and HRM520 robotic mowers, including variants across serial ranges
- Serial Number Verification Advised — Honda updates hardware specifications at production breaks, so check your machine's serial number against the compatibility table to confirm this is the correct part for your unit
A plain washer distributes the clamping load of a fastener — bolt or screw — across a broader surface area, protecting the material being fastened and helping the fastener hold its torque consistently over time. In equipment that operates under vibration, such as generators and robotic mowers, properly fitted washers help prevent fasteners from loosening during normal use. Using the correct OEM-specified size ensures the washer seats flush and performs as intended; an undersized or oversized washer can allow movement or cause uneven clamping that leads to fastener wear.
Part Details
| Part Number | 94103-04800 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Plain Washer (4MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EV4000 | All |
| Robotic Mower | HRM310, HRM520, HRM3000 | All |
| Welder Generator | EW170 | 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.
