The Honda 78115-YB0-004 Seal Ring A is a genuine OEM component designed for WA15, WB15, and WX15 water pumps. Sourced directly from Honda, this seal ring meets the exact fit and dimensional requirements of the original part. This is the correct replacement for WA15, WB15, and WX15 pump owners who need to restore a proper hydraulic seal and stop leaks at the pump's sealing interface. Confirm your pump model and serial number against the fitment table before ordering to ensure this is the right ring for your unit.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Honda's original dimensions, ensuring the seal ring seats and compresses the way the pump was designed to function, not an approximation of it.
- Direct Replacement — engineered to install without modification into WA15, WB15, and WX15 water pumps, restoring the factory sealing geometry.
- Stops Leaks at the Source — a degraded or damaged seal ring allows water to bypass the sealing surface, reducing flow efficiency and potentially damaging surrounding pump components. Replacing it with part number 78115-YB0-004 restores a leak-free interface.
- Check Your Serial Number — Honda updates parts at production serial breaks; verify your pump's serial number against the fitment table to confirm this ring applies to your specific unit.
The Seal Ring A is a precision sealing component within the pump's internal assembly, responsible for preventing water from escaping past a critical sealing interface inside the pump housing. When this ring wears, hardens, or takes damage, the pump loses its ability to maintain pressure at that joint, resulting in leaks that reduce output and can accelerate wear on nearby components. Replacing this ring with the correct Honda OEM part restores the pump's sealed hydraulic circuit and brings performance back to spec.
Part Details
| Part Number | 78115-YB0-004 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Seal Ring A |
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.
