The Honda 90109-V09-D01 Hexagon Bolt (8X90) is a genuine OEM Hexagon Bolt (8X90) designed for the HA4120 lawn tractor. As a factory-original fastener, this bolt matches the exact dimensions and thread specification Honda engineers specified for the HA4120, ensuring the correct clamping load and a secure, rattle-free fit. Confirm your machine's serial number against the fitment table to ensure this is the correct part for your unit before ordering.
Key Features
- Genuine OEM Fastener — sourced directly from Honda, this bolt delivers the exact thread pitch, shank length, and head geometry called out in the HA4120 parts catalog.
- Correct Dimensions — the 8 mm diameter and 90 mm length are the precise spec for this application; an incorrect fastener risks under- or over-clamping the joined components.
- Direct Replacement — drops straight into the original position on the HA4120 lawn tractor with no modification to the hardware or mounting points.
- Serial Number Verification Recommended — Honda updates part numbers at production breaks, so cross-reference your tractor's serial number with the fitment table to confirm part number 90109-V09-D01 is current for your build.
A hex bolt of this size is a structural fastener used to join major assemblies on the HA4120 lawn tractor, providing the clamping force that keeps critical components aligned and secured during operation. When a fastener of this type is missing, damaged, or replaced with an incorrect substitute, the joined components can shift or work loose under the vibration and load stresses of regular mowing. Using the correct OEM specification bolt maintains the integrity of the joint and the reliability of the tractor as a whole.
Part Details
| Part Number | 90109-V09-D01 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Hexagon Bolt (8X90) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| 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.
