The Honda 90201-ZM0-000 Flange Nut (6MM) is a genuine OEM fastener used across a wide range of Honda engines and power equipment, including GC135, GC160, GC190, GCV135, GCV160, GCV190, GCV520, GCV530, GS160, GS190, GSV190, GXV390, GXV520, and GXV530 engines, EN2000 and EN2500 generators, FG400 and FG500 tillers, HRB216, HRB217, HRC216, HRR216, HRS216, HRT216, HRX217, and HRZ216 lawn mowers, HS520 and HS720 single-stage snow blowers, HSS724, HSS928, and HSS1332 two-stage snow blowers, and WN20 and WN30 water pumps. As a Honda genuine part, it is built to the exact specification Honda engineers used when designing the original equipment. Because this nut appears across many different serial production runs, verify your machine's serial number against the fitment table to confirm part number 90201-ZM0-000 is correct for your specific unit before ordering.
Key Features
- Genuine OEM Specification — manufactured to Honda's exact dimensional and thread requirements for a correct, secure fit every time
- Integrated Flange Design — the built-in flange distributes clamping load over a wider bearing surface, helping to maintain consistent fastener torque without a separate washer
- Broad Honda Compatibility — one part number serves horizontal and vertical shaft engines, lawn mowers, snow blowers, tillers, generators, and water pumps across Honda's product line, including GC, GCV, GS, GSV, and GXV series engines
- Confirm Your Serial Number — Honda updates fastener specifications at production breaks, so always cross-check your unit's serial number against the fitment table to ensure this is the right nut for your machine
A flange nut is a standard hex nut with a wide, integrated washer-like flange formed as part of the nut body. The flange spreads the clamping force across a larger surface area than a plain nut alone, reducing the chance of the fastener loosening under vibration — a key concern on engines and outdoor power equipment that run at high RPM or across rough terrain. When a flange nut works loose or is replaced with an incorrect size, it can allow assembled components to shift or separate, affecting both function and safety. Using the correct Honda OEM replacement ensures thread engagement, torque retention, and dimensional compatibility are maintained as originally designed.
Part Details
| Part Number | 90201-ZM0-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Flange Nut (6MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EN2000, EN2500 | All |
| Horizontal Shaft Engine | GC135, GC160, GC190, GS160, GS190 | All |
| Lawn Mower | HRC216 | 1017269-9999999 |
| Lawn Mower | HRB216, HRB217, HRR216, HRS216, HRT216, HRX217, HRZ216 | All |
| Single-Stage Snow Blower | HS520, HS720 | All |
| Tiller | FG400, FG500 | All |
| Two-Stage Snow Blower | HSS724, HSS928, HSS1332 | All |
| Vertical Shaft Engine | GCV190 | 1362873-9999999 |
| Vertical Shaft Engine | GCV160 | 1687182-9999999 |
| Vertical Shaft Engine | GCV135, GCV520, GCV530, GSV190, GXV390, GXV520, GXV530 | All |
| Water Pump | WN20, WN30 | 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.
