The Honda 90123-VA4-800 Flange Bolt (6X28) is a genuine OEM fastener designed for a wide range of Honda engines, lawn mowers, and tractors, including the GX640 horizontal shaft engine, H4518 and H5518 tractors, and HR-series mowers such as the HR194, HR195, HR214, HR215, HR216, HRA214, HRA215, HRA216, HRB215, HRC215, HRC216, and HRM215. As a direct Honda OEM part, it is manufactured to the exact dimensions and specifications Honda requires for these applications. Because Honda supersedes fastener part numbers at production breaks, confirm your machine's serial number against the fitment table before ordering to ensure part number 90123-VA4-800 is correct for your unit.
Key Features
- Genuine OEM Fastener — sourced directly from Honda, this flange bolt meets the exact dimensional and torque specifications Honda sets for these applications.
- Integrated Flange Design — the built-in flange distributes clamping load across a wider bearing surface, reducing the chance of fastener loosening over time.
- Broad Fitment — listed for GX640 engines, H4518 and H5518 tractors, and the full HR-series mower lineup, including HRC216 and HRM215 models.
- Serial Number Verification Recommended — Honda updates hardware specifications at serial breaks; always match your machine's serial number to the fitment table before purchasing.
A flange bolt combines a standard hex bolt with an integrated washer-like flange beneath the head. The flange spreads the clamping force over a larger surface area than a plain bolt head alone, which helps keep fastened components secure under the vibration and load cycles that engines, mowers, and tractors routinely generate. A missing or damaged flange bolt can allow components to shift or work loose, affecting the integrity of the assembly it secures.
Part Details
| Part Number | 90123-VA4-800 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Flange Bolt (6X28) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX640 | All |
| Lawn Mower | HR194, HR195, HR214, HR215, HR216, HRA214, HRA215, HRA216, HRB215, HRC215, HRC216, HRM215 | All |
| Lawn Tractor | H4518 | All |
| Multi-Purpose Tractor | H5518 | 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.
