The Honda 90018-Z3E-901 Socket Bolt (5X16) is a genuine OEM fastener designed for a wide range of Honda equipment, including GX25, GX35, and GX50 horizontal shaft engines, the FG110 tiller, HHT25, HHT35, UMC425, and UMC435 trimmers, and the WX10 water pump. As a direct Honda OEM part, this socket bolt is manufactured to the exact dimensions Honda specifies, ensuring a proper fit without modification. Confirm your unit's serial number against the fitment table before ordering, as Honda updates hardware specifications at serial breaks.
Key Features
- Genuine OEM Hardware — sourced directly from Honda, this socket bolt meets the exact size and thread specification called out in Honda's parts catalog for each listed application
- Broad Cross-Equipment Fitment — listed for GX25, GX35, and GX50 horizontal shaft engines, the FG110 tiller, HHT25, HHT35, UMC425, and UMC435 trimmers, and the WX10 water pump, including the equipment each powers
- Verify Before Ordering — Honda supersedes fasteners at serial number breaks; check your unit's serial number against the compatibility table to confirm part number 90018-Z3E-901 is correct for your specific machine
A socket bolt is a cap-head fastener driven by a hex key rather than a conventional wrench, allowing it to be tightened in tight or recessed spaces where a standard bolt head would not clear. Using the correct OEM fastener matters because an undersized or incorrect-thread replacement can strip threads, work loose under vibration, or prevent proper assembly. A loose or missing fastener can lead to misaligned components, increased wear, or equipment that cannot be safely reassembled after service.
Part Details
| Part Number | 90018-Z3E-901 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Socket Bolt (5X16) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX25 | 1276015-9999999 |
| Horizontal Shaft Engine | GX35, 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.
