The Honda 90104-YE6-003 Bolt-Washer (8x40) is a genuine OEM fastener designed for WP20 and WP30 water pumps. As a direct Honda OEM replacement, this bolt-washer is sourced and specified to the exact dimensions Honda calls out for these pumps. Confirm your unit'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-washer meets the exact dimensional and torque specifications called out for the WP20 and WP30 water pumps.
- Correct Size for the Application — the 8x40 designation identifies both the thread diameter and shank length, so you get the right hardware the first time rather than pulling from a generic assortment.
- Serial Number Awareness — Honda updates hardware specifications at production breaks; always cross-reference your pump's serial number with the fitment table to confirm this is the correct part for your unit.
A bolt-washer is a single-piece fastener that combines a bolt and an integrated washer flange in one component. The washer flange spreads clamping load across a broader surface area than a plain bolt head alone, helping to secure assembled components without the risk of a separate washer walking out of position during service. When a bolt-washer stretches, strips, or goes missing, proper clamping force is lost and the assembly it holds together can work loose under the vibration and pressure loads a water pump generates during operation.
Part Details
| Part Number | 90104-YE6-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Bolt-Washer (8x40) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Water Pump | WP20, WP30 | 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.
