The Honda 78103-YG0-003 Inlet is a genuine OEM component designed for WT20 and WT30 water pumps. As a direct Honda OEM part, it is manufactured to the same specifications as the original, ensuring a correct fit in your pump. This part is listed for both the WT20 and WT30 — verify that part number 78103-YG0-003 matches your specific unit before ordering.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this inlet is an exact match to the original part your pump was built with, not an approximation.
- Water Pump Fitment — listed for Honda WT20 and WT30 water pumps, including multiple serial ranges; confirm your serial number against the fitment table to ensure this is the correct inlet for your unit.
- Direct Replacement — installs in place of the original with no rework required, restoring the pump's intake passage to its original condition.
The inlet is the entry point through which water is drawn into the pump. On centrifugal water pumps like the WT20 and WT30, the inlet directs flow from the suction hose into the pump housing, where the spinning impeller picks it up and moves it through the discharge. A cracked, damaged, or improperly sealed inlet reduces suction efficiency, causes air leaks, and can prevent the pump from priming altogether — resulting in little to no water flow even when the engine is running at full speed.
Part Details
| Part Number | 78103-YG0-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Inlet |
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.
