The Honda 90343-892-000 Self-Lock Nut (6MM) is a genuine OEM fastener used across a wide range of Honda equipment, including BK4542, BK4546, H2013, and H2113 lawn tractors, E3500, EB4000, EM4000, EM500, EM600, EMS4000, EMS4500, and ES3500 generators, the EW170 welder generator, and HS35, HS521, and HS621 single-stage snow blowers. As a Honda OEM component, it is manufactured to the same specification as the original hardware installed at the factory. Because Honda supersedes hardware across serial number breaks, confirm your machine's serial number against the fitment table before ordering.
Key Features
- Genuine OEM Hardware — sourced directly from Honda, this nut meets the same specification as the original fastener installed during production, ensuring correct thread engagement and clamping load.
- Self-Locking Design — the locking feature resists loosening under vibration, making this nut suited to the demanding operating environments of generators, snow blowers, and lawn tractors.
- Broad Honda Fitment — listed for generators, welder generators, lawn tractors, and single-stage snow blowers, including models such as the EM4000, HS621, and BK4546; verify your serial number to confirm the correct part for your unit.
- Direct OEM Replacement — matches the thread size and locking specification of the original, so this nut installs without modification using standard tooling.
A self-lock nut is a standard fastener with a built-in locking mechanism — typically a nylon insert or a deformed thread section — that prevents the nut from backing off under vibration or cyclical loads. On Honda equipment such as generators, lawn tractors, and snow blowers, these nuts are used in assemblies where a conventional nut could work loose during operation. When a self-lock nut loses its locking effectiveness through reuse or wear, the fastener joint can loosen over time, potentially causing components to shift or rattle. Replacing a worn self-lock nut with the correct OEM part restores the holding integrity of the joint.
Part Details
| Part Number | 90343-892-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Self-Lock Nut (6MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EM500, EM600 | 1000001-1084856 |
| Generator | E3500, EB4000, EM4000, EMS4000, EMS4500, ES3500 | All |
| Lawn Tractor | BK4542, BK4546, H2013, H2113 | All |
| Single-Stage Snow Blower | HS521, HS621 | 1000001-1002143 |
| Single-Stage Snow Blower | HS35 | 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.
