The Honda 90306-V09-A01 Flange Nut (10mm) is a genuine OEM fastener designed for the HA4118 and HA4120 lawn tractors. As a direct Honda OEM component, this nut is manufactured to the exact dimensions Honda specifies for these machines, ensuring a correct, secure fit wherever it is used on the tractor. Always confirm your tractor's serial number against the fitment table before ordering, as Honda updates part numbers at production breaks.
Key Features
- Genuine Honda OEM Fastener — sourced directly from Honda, this flange nut meets the exact dimensional specifications called out in the HA4118 and HA4120 parts catalogue.
- Integrated Flange Design — the built-in flange distributes clamping load over a wider bearing surface than a standard nut, reducing the risk of loosening under vibration.
- Correct 10mm Thread Size — sized specifically for Honda's 10mm fastener positions on these lawn tractors; using the wrong thread pitch or diameter risks stripped threads and failed joints.
- Serial Number Verification Recommended — Honda supersedes fasteners at production breaks, so cross-check your tractor's serial number against the fitment table to confirm part number 90306-V09-A01 is correct for your unit.
A flange nut is a hex nut with a wide, integrated washer-like collar forged as part of the nut body. The flange spreads the clamping force across a larger surface area, helping the connection resist loosening from engine vibration and ground-transmitted shock — both common on a riding lawn tractor. When a flange nut is missing, damaged, or replaced with a non-spec fastener, the joint it secures can work loose over time, leading to component movement or wear at the fastened assembly.
Part Details
| Part Number | 90306-V09-A01 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Flange Nut (10mm) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Tractor | HA4118, HA4120 | 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.
