The Honda 90003-ZL8-000 Flange Bolt (6X112) is a genuine OEM fastener designed for a broad range of Honda engines, generators, water pumps, and tillers, including GC135, GC160, GC190, GS160, GS190, EN2000, EN2500, EU3000, WN20, WN30, FG400, and FG500 models. As a direct Honda OEM part, it is manufactured to the exact dimensions and thread specification Honda specifies for these applications. Because Honda supersedes hardware at serial breaks, buyers should confirm their model and serial number against the fitment table before ordering.
Key Features
- Genuine OEM Fastener — sourced directly from Honda, matching the thread pitch, shank length, and flange diameter called out in the original assembly
- Broad Application Coverage — listed for GC-series and GS-series horizontal shaft engines, EN and EU generators, WN water pumps, and FG tillers
- Correct Flange Geometry — the integrated flange distributes clamping load evenly, eliminating the need for a separate washer where Honda designed the joint without one
- Serial Number Verification Recommended — Honda updates hardware specifications across production runs; confirm your serial number against the fitment table to ensure this is the correct bolt for your unit
A flange bolt combines a standard hex bolt with a wide, built-in flange beneath the head that acts as an integral washer. This spreads clamping force across a larger surface area, reducing the risk of loosening under vibration — a common operating condition in engines, pumps, generators, and tillers. Using the correct OEM bolt, part number 90003-ZL8-000, ensures the joint is assembled to the torque and geometry Honda intended; substituting an incorrect thread pitch or shank length can result in an improperly clamped joint or thread damage in the mating component.
Part Details
| Part Number | 90003-ZL8-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Flange Bolt (6X112) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EN2000, EN2500 | All |
| Horizontal Shaft Engine | GS190 | 2000000-9999999 |
| Horizontal Shaft Engine | GC135, GC160, GC190, GS160 | All |
| Inverter Generator | EU3000 | All |
| Tiller | FG400, FG500 | All |
| Water Pump | WN20, WN30 | 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.
