The Honda 90106-YG1-003 Bolt-Washer (10X35) is a genuine OEM fastener designed for Honda WT20 and WT30 water pumps. Sourced directly from Honda, this combined bolt-and-washer unit delivers the exact fit and clamping specification the pump was engineered around. Honda supersedes hardware at serial breaks, so confirm your pump's serial number against the fitment table before ordering to ensure part number 90106-YG1-003 is the correct listing for your unit.
Key Features
- Genuine OEM Hardware — supplied by Honda to the exact thread pitch, shank length, and integrated washer diameter the WT20 and WT30 water pumps require, with no guesswork on sizing.
- Combined Bolt-and-Washer Design — the integrated washer distributes clamping load evenly across the fastened surface, eliminating the need for a separate washer and reducing the chance of misalignment during assembly.
- Direct Replacement — this part installs in place of the original with no modification, maintaining the torque retention the pump's assembly depends on.
- Serial Number Verification Recommended — Honda updates hardware specifications across production runs; check your serial number against the compatibility table to confirm this is the correct bolt-washer for your pump.
A bolt-washer is a single fastener that combines a bolt with a permanently attached washer flange at the head. In a water pump assembly, fasteners like this one hold pump housings, covers, and structural components under sustained vibration and operating loads. The integrated washer spreads the clamping force across a wider area than a bare bolt head alone, helping maintain a secure joint over long service intervals. When a fastener of this type loosens or is replaced with an incorrect size, it can allow components to shift, compromise sealing surfaces, or introduce vibration that accelerates wear on surrounding parts.
Part Details
| Part Number | 90106-YG1-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Bolt-Washer (10X35) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Water Pump | WT20, WT30 | 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.
