The Honda 90307-V09-A01 Lock Nut C (8MM) is a genuine OEM Lock Nut C (8MM) designed for HA4118 and HA4120 lawn tractors. As a direct Honda OEM part, it is manufactured to the same specifications as the original hardware installed at the factory. Honda supersedes fastener part numbers at production breaks, so confirm your tractor's serial number against the fitment table before ordering to ensure part number 90307-V09-A01 is the correct listing for your unit.
Key Features
- Genuine Honda OEM Hardware — sourced directly from Honda, this lock nut is the same 8MM fastener used in original production, not a generic substitute.
- Direct OEM Replacement — designed to install exactly as the original, with no modification needed to fit HA4118 and HA4120 lawn tractors.
- Serial Number Verification Recommended — Honda updates hardware part numbers at production breaks; check your tractor's serial number against the compatibility table to confirm this is the correct listing for your machine.
A lock nut is a fastener engineered to resist loosening under vibration and repeated movement — a common challenge in lawn tractor applications where equipment is subject to constant motion and load cycling. Unlike a standard nut, the locking feature maintains clamping force over time, keeping the assembled joint secure through extended use. When a lock nut wears, strips, or is replaced with an incorrect fastener, joint integrity can be compromised, making correct OEM replacement the straightforward choice for a dependable repair.
Part Details
| Part Number | 90307-V09-A01 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Lock Nut C (8MM) |
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.
