The Honda 90009-Z0H-003 Socket Bolt (5X20) is a genuine OEM fastener designed for FG110 tillers, GX25 and GX35 horizontal shaft engines, HHT25 and HHT35 trimmers, and WX10 water pumps. As a factory-original component, it meets Honda's exact dimensional specifications for thread diameter and length, ensuring proper torque retention in the applications it serves. Confirm your machine's serial number against the fitment table before ordering, as Honda periodically supersedes hardware at production breaks.
Key Features
- Genuine OEM Fastener — sourced directly from Honda, this bolt carries the correct 5 mm thread diameter and 20 mm length to match the original specification exactly.
- Broad OEM Fitment — listed for FG110 tillers, GX25 and GX35 horizontal shaft engines, HHT25 and HHT35 trimmers, and WX10 water pumps, including models covered by part number 90009-Z0H-003.
- Check Your Serial Number — Honda updates hardware part numbers at serial breaks, so verify your unit's serial number against the compatibility table to confirm this is the correct bolt for your machine.
A socket bolt is an internally driven hex-socket fastener used throughout Honda's small-displacement equipment to secure covers, housings, and structural components. Its recessed drive accepts an Allen or hex key, allowing controlled torquing in tight spaces where a conventional bolt head would not fit. When a fastener of this type is missing, stripped, or under-torqued, the assembly it holds can shift or allow ingress of debris — replacing it with the correct OEM bolt restores the intended clamping load and keeps the assembly properly secured.
Part Details
| Part Number | 90009-Z0H-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Socket Bolt (5X20) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX25, GX35 | All |
| Tiller | FG110 | All |
| Trimmer | HHT35 | 1000001-2949968 |
| Trimmer | HHT25 | All |
| Water Pump | WX10 | 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.
