The Honda 90302-V09-A01 Lock Nut A (8MM) is a genuine OEM Lock Nut A (8MM) designed for HA4118 and HA4120 lawn tractors. As a factory-original component, this part matches the exact specification Honda engineers specified for these machines. Confirm your tractor's serial number against the fitment table before ordering, as Honda periodically supersedes hardware at specific serial breaks.
Key Features
- Genuine OEM Hardware — sourced directly from Honda, this Lock Nut A (8MM) meets the same specification used in original assembly of HA4118 and HA4120 lawn tractors.
- Exact Replacement — an 8MM locking nut engineered to the correct thread pitch and locking geometry for a direct, hassle-free swap with the original part.
- Serial Number Verification Recommended — Honda updates hardware specifications at production breaks, so confirm your tractor's serial number against the fitment table to ensure this is the correct part for your unit.
A lock nut is a fastener designed to resist loosening under vibration and dynamic load — conditions that lawn tractors encounter throughout normal operation. Unlike a standard nut, the locking feature maintains clamping force even as components flex and move, keeping critical assemblies secure over time. When a lock nut wears, strips, or is replaced with a non-locking equivalent, connections can work loose, leading to play, misalignment, or fastener failure in the joined assembly.
Part Details
| Part Number | 90302-V09-A01 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Lock Nut A (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.
