The Honda 90009-Z3E-901 Socket Bolt (5X20) is a genuine OEM Socket Bolt (5X20) designed for Honda FG110 tillers, GX25, GX35, and GX50 horizontal shaft engines, HHT25, HHT35, UMC425, and UMC435 trimmers, and WX10 water pumps. As a direct Honda OEM part, it is manufactured to the same specifications as the hardware that left the factory with your equipment. Confirm your machine's serial number against the fitment table before ordering, as Honda updates part assignments at serial breaks and the correct bolt for your unit depends on your specific build.
Key Features
- Genuine OEM Hardware — sourced directly from Honda, ensuring the thread pitch, head geometry, and length match the original 5×20 mm socket bolt specification exactly.
- Direct Replacement — drops straight into place with no modification, preserving proper clamp load and fit across all listed models.
- Broad Fitment — listed for Honda FG110 tillers, GX25, GX35, and GX50 horizontal shaft engines, HHT25, HHT35, UMC425, and UMC435 trimmers, and WX10 water pumps, including GX25 and GX35 mini 4-stroke engines.
- Verify Your Serial Number — Honda revises fastener assignments at production serial breaks; check your machine's serial number against the compatibility table to confirm part number 90009-Z3E-901 is correct for your unit.
A socket bolt is a cap-head fastener driven by a hex key (Allen wrench) rather than a conventional open-end or socket wrench. The recessed drive allows the bolt to be installed in tight spaces where a standard hex head would not clear surrounding components. Using the correct OEM bolt ensures the right thread engagement and clamping force; an incorrect length or thread pitch can result in under-torqued joints that loosen under vibration, or damage to threaded bores that are difficult to repair on small-displacement engines and equipment.
Part Details
| Part Number | 90009-Z3E-901 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Socket Bolt (5X20) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX35 | 1224761-9999999 |
| Horizontal Shaft Engine | GX25 | 1276015-9999999 |
| Horizontal Shaft Engine | GX50 | All |
| Tiller | FG110 | 2351474-9999999 |
| Trimmer | HHT25 | 2359747-9999999 |
| Trimmer | HHT35 | 2949969-9999999 |
| Trimmer | UMC425, UMC435 | 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.
