The Honda 78106-YG0-003 Impeller is a genuine OEM replacement designed for Honda WT20 and WT30 water pumps. As a direct OEM component sourced from Honda, this impeller is manufactured to the same specification as the part that left the factory, ensuring correct clearances and flow characteristics for your pump. Confirm your pump's serial number against the fitment table before ordering, as Honda periodically supersedes parts at production breaks.
Key Features
- Genuine OEM Flow Geometry — manufactured to Honda's original blade profile and diameter, preserving the rated gallons-per-minute output your pump was designed to deliver
- Direct OEM Replacement — engineered to drop into the pump housing of WT20 and WT30 water pumps using existing hardware, with no rework to the volute or shaft
- Broad WT-Series Coverage — fits Honda WT20 and WT30 water pumps; verify your serial number against the fitment table to confirm the correct part for your unit
- Restore Full Pumping Performance — a worn or damaged impeller causes a noticeable drop in flow rate and discharge pressure; replacing it with part number 78106-YG0-003 brings output back to specification
The impeller is the rotating component at the heart of a centrifugal water pump. Driven directly by the engine, it spins at high speed inside the pump volute, drawing water in through the inlet and accelerating it outward by centrifugal force toward the discharge port. Over time, abrasive particles in the water stream erode the impeller vanes, widening the running clearance between the impeller and the volute and reducing the pump's ability to build pressure and move volume. Replacing a worn impeller restores the tight clearances the pump needs to meet its rated flow and lift performance.
Part Details
| Part Number | 78106-YG0-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Impeller |
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.
