The Honda 78139-YB8-003 Hose Band is a genuine OEM replacement built for WT20 and WT30 water pumps. Sourced directly from Honda, this part meets the same specifications as the original component installed at the factory. Confirm your pump's serial number against the fitment table before ordering, as Honda periodically supersedes parts at serial number breaks.
Key Features
- Genuine Honda OEM — supplied by Honda, ensuring the band dimensions and clamping tension match exactly what was specified for the WT20 and WT30 water pumps.
- Direct Replacement — designed to swap in without modification, restoring a secure hose connection on the pump.
- Correct Fit for WT20 and WT30 — compatible with Honda WT20 and WT30 water pumps; check your serial number against the fitment table to confirm the right part for your unit.
- Prevents Leaks — a properly secured hose band keeps hose connections sealed under working pressure; a loose or failed band allows water to escape at the connection, reducing pump output and efficiency.
A hose band is a clamp that secures a hose to a fitting or port on the water pump, holding the connection firmly against the pressure the pump generates during operation. Without a correctly seated and properly tensioned band, a hose can loosen or slip, allowing water to bypass the connection instead of flowing through the discharge path. Replacing a worn or damaged hose band restores a leak-free seal and keeps the pump delivering full flow.
Part Details
| Part Number | 78139-YB8-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Hose Band |
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.
