The Honda 90005-Z2E-000 Flange Bolt (12X18) is a genuine OEM fastener designed for the GX440 horizontal shaft engine. As a direct Honda OEM part, it is produced to the exact dimensions Honda specifies for this application, ensuring the correct thread pitch, shank length, and integrated flange diameter are present at installation. Confirm your engine's serial number against the fitment table before ordering, as Honda supersedes hardware at serial breaks.
Key Features
- Genuine Honda OEM Hardware — sourced directly from Honda, this bolt carries the exact 12 mm x 18 mm dimensions Honda specifies for the GX440, so there is no guesswork on thread size or flange geometry.
- Integrated Flange Design — the built-in flange distributes clamping load across a wider bearing surface, reducing the risk of fastener loosening under engine vibration without requiring a separate washer.
- Serial Number Verification Recommended — Honda updates hardware specifications at production serial breaks; check your GX440 serial number against the compatibility table to confirm this is the correct bolt for your unit.
A flange bolt combines a standard hex bolt with an integrated washer-like flange at the base of the head. The flange spreads the clamping force over a larger contact area than a plain bolt head alone, helping fastened components stay secure under the vibration and thermal cycling that a running engine produces. When a bolt of incorrect dimensions is used in its place — wrong thread pitch, insufficient shank length, or a mismatched flange diameter — proper clamping cannot be achieved, which can lead to joint movement or fastener failure over time.
Part Details
| Part Number | 90005-Z2E-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Flange Bolt (12X18) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX440 | 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.
