The Honda 90123-V09-A01 Flange Bolt (10X20) is a genuine OEM replacement designed for HA4118 and HA4120 lawn tractors. Sourced directly from Honda, this bolt carries the exact dimensions and thread specification Honda engineers called for when these tractors were built. If your tractor requires this fastener, confirming your serial number against the fitment table is the best way to ensure part number 90123-V09-A01 is the right match for your unit.
Key Features
- Genuine Honda OEM — sourced directly from Honda, so the thread pitch, shank diameter, and flange geometry match what left the factory on HA4118 and HA4120 lawn tractors.
- 10 x 20 Flange Design — the integrated flange distributes clamping load across a wider bearing surface than a standard bolt, reducing the chance of loosening under vibration.
- Correct Fitment for Your Tractor — listed for HA4118 and HA4120 lawn tractors; verify your serial number against the fitment table before ordering, as Honda supersedes hardware at serial breaks.
A flange bolt combines a conventional hex bolt with a built-in washer-like flange at the base of the head. The flange spreads the fastener's clamping force over a larger contact area, which helps maintain a secure joint even in applications subject to engine and drivetrain vibration — conditions common in lawn tractor use. When a flange bolt stretches, strips, or goes missing, the joint it holds can work loose, leading to noise, misalignment, or component movement that accelerates wear on surrounding parts.
Part Details
| Part Number | 90123-V09-A01 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Flange Bolt (10X20) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Tractor | HA4118 | 6001210-9999999 |
| Lawn Tractor | 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.
