The Honda 78130-YH5-611 Mechanical Seal Assembly is a genuine OEM component designed for WA15, WB15, and WX15 water pumps. As a direct OEM replacement, this seal assembly is manufactured to Honda's exact specifications, ensuring a proper fit against the pump shaft and housing without modification. This part is the right choice for restoring a pump that has developed a water leak at the shaft, and confirming your pump's serial number against the fitment table before ordering is always recommended, as Honda periodically supersedes parts at production breaks.
Key Features
- Genuine Honda OEM Sealing — manufactured to the same specification as the original, ensuring the correct interface geometry between the rotating shaft and pump housing to prevent water intrusion and pressure loss
- Addresses Active Leaks — a worn or degraded mechanical seal allows water to escape around the pump shaft, reducing output pressure and risking damage to the pump's internal components; this assembly restores a sound seal
- Fits WA15, WB15, and WX15 Water Pumps — verified OEM fitment across Honda's 1.5-inch centrifugal water pump lineup
- Verify Serial Number Before Ordering — Honda supersedes mechanical components at defined production intervals; match your pump's serial number to the fitment table to confirm this is the correct assembly for your unit
A mechanical seal assembly is the dynamic sealing interface that prevents pumped water from escaping along the rotating drive shaft of a centrifugal water pump. It consists of two precision-lapped faces — one rotating with the shaft and one stationary in the housing — held in contact by spring pressure to form a continuous, leak-free barrier. When this seal wears, becomes damaged, or loses its spring tension, water begins to leak from around the shaft, output pressure drops, and the pump's internal components can be exposed to contamination; replacing the assembly promptly is the most effective way to return the pump to full working condition.
Part Details
| Part Number | 78130-YH5-611 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Mechanical Seal Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Water Pump | WA15, WB15, WX15 | 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.
