The Honda 90303-YG2-003 Hexagon Nut (10MM) is a genuine OEM replacement designed for the WT40 water pump. As a factory-sourced component, this nut matches Honda's original specification exactly, ensuring the correct thread engagement and clamping load for the application it was designed for. When hardware wears, strips, or goes missing during service, sourcing the correct Honda part by part number 90303-YG2-003 means no guesswork on sizing or thread pitch.
Key Features
- Genuine OEM Hardware — sourced directly from Honda, so thread pitch, diameter, and dimensions match the original fastener used on the WT40 from the factory.
- Exact 10MM Fit — the (10MM) designation identifies this as the correct size variant; verify this matches your pump's requirement before ordering.
- WT40 Water Pump Fitment — listed specifically for the Honda WT40 water pump; check your unit's serial number against the fitment table to confirm this is the right hardware for your pump.
A hexagon nut is a standard threaded fastener used to clamp and secure components together on the pump assembly. On a high-output pump like the WT40, fasteners are subjected to vibration and heat cycling during operation, which can cause them to loosen, corrode, or become damaged during routine service. Using the correct OEM nut ensures the joint is held to the load Honda engineered for — a mismatched fastener risks undertightening or thread damage that can lead to loosened components and pump downtime.
Part Details
| Part Number | 90303-YG2-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Hexagon Nut (10MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Water Pump | WT40 | 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.
