The Honda 78103-YB7-630 Inlet Pipe is a genuine OEM component designed for WH15 and WH20 water pumps. As a direct OEM replacement, this inlet pipe is manufactured to Honda's exact specifications, ensuring a proper fit and consistent water flow performance. This part is confirmed for WH15 and WH20 water pumps — verify your pump's serial number against the fitment table to confirm the correct part for your unit.
Key Features
- Genuine OEM Construction — manufactured by Honda to the same specification as the original, maintaining correct inlet geometry and connection dimensions for the WH15 and WH20 pumps
- Correct Flow Path — a damaged or cracked inlet pipe restricts water intake and starves the pump, leading to reduced output and potential pump damage; this replacement restores the full intake flow path
- Confirmed OEM Fitment — designed specifically for WH15 and WH20 Honda water pumps; check your serial number against the fitment table to ensure this is the right part for your serial range
The inlet pipe is the entry point for water into the pump housing. It channels water from the suction hose into the pump body where the impeller picks it up and pressurizes it for discharge. When the inlet pipe cracks, warps, or develops a leak, the pump draws air instead of water, causing a loss of prime, reduced flow rate, and potential overheating of the pump internals — restoring this component is essential to getting the pump back to full working capacity.
Part Details
| Part Number | 78103-YB7-630 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Inlet Pipe |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Water Pump | WH15, WH20 | 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.
