The Honda 78100-YE0-003 is a genuine OEM Pump Assembly (SE2RL) designed for the WMP20 water pump. As a direct Honda OEM component, this assembly is sourced to the exact specification Honda uses in production, ensuring a correct fit with no guesswork. Verify part number 78100-YE0-003 against your unit's serial number using the fitment table to confirm this is the right assembly for your WMP20 before ordering.
Key Features
- Genuine OEM Pump Assembly — sourced directly from Honda, this assembly matches the original in every measurable way, restoring the flow performance and sealing integrity the WMP20 was built to deliver
- SE2RL Variant Identification — the SE2RL designation identifies a specific pump assembly variant; confirm this code matches your unit before ordering, as alternate variants are listed separately
- Direct Fitment for the WMP20 — engineered specifically for the Honda WMP20 water pump, this assembly installs as a complete unit without the need to source individual internals
- Serial Number Verification Recommended — Honda supersedes pump components at production breaks; check your WMP20's serial number against the fitment table to confirm part number 78100-YE0-003 is current for your machine
The pump assembly is the core fluid-moving unit of the WMP20 water pump, responsible for drawing water in and pushing it through the discharge at the rated flow and pressure. When the pump assembly wears or becomes damaged — through debris ingestion, seal failure, or prolonged dry running — flow rate drops, prime is lost, or the pump stops moving water altogether. Replacing the complete assembly restores the pump to its original operating condition and is the most reliable path back to full performance.
Part Details
| Part Number | 78100-YE0-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Pump Assembly (SE2RL) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Water Pump | WMP20 | 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.
