The Honda 90103-YG2-003 Bolt-Washer (12X50) is a genuine OEM fastener designed for the WT40 water pump. As a direct Honda OEM part, it is manufactured to the exact dimensions required for a proper fit on the WT40. Confirm the part number 90103-YG2-003 against your machine's serial number and parts diagram before ordering to ensure this is the correct fastener for your application.
Key Features
- Genuine Honda OEM Fastener — manufactured to Honda's exact dimensional requirements, so the bolt and integrated washer seat correctly without improvised substitutes
- Correct 12X50 Specification — the 12X50 sizing is a defined variant; verify this matches your WT40's parts diagram, as alternative sizes exist in the same series
- WT40 Water Pump Fitment — listed for the Honda WT40 water pump; always cross-reference your machine's serial number against the fitment table to confirm applicability
A bolt-washer is a combined fastener that integrates a captive washer into the bolt head, spreading clamping load over a wider bearing surface and reducing the risk of loosening from vibration. On a high-output pump like the WT40, which is subject to continuous vibration during operation, using the correct OEM fastener in the correct size ensures components are held securely and that clamping force is maintained over time. Using an incorrect size or a non-OEM substitute risks improper seating, which can lead to loosening or damage to the mating surface.
Part Details
| Part Number | 90103-YG2-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Bolt-Washer (12X50) |
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.
