The Honda 78107-YH5-610 Volute Case is a genuine OEM replacement designed for the WX15 water pump. As the pump's primary hydraulic housing, this component is manufactured to Honda's exact dimensions to maintain proper running clearances and deliver consistent flow performance. Confirm your unit's serial number against the fitment table before ordering to ensure this is the correct version for your pump.
Key Features
- Genuine OEM Hydraulic Fit — manufactured to Honda's exact internal geometry, ensuring the impeller turns within the correct clearances for rated flow and pressure output on the WX15
- Direct Replacement for the WX15 Water Pump — this part drops in as a factory replacement, restoring the pump's volute housing without rework or improvisation
- Serial Number Verification Recommended — Honda updates pump components at production breaks, so cross-check your serial number against the fitment table to confirm part number 78107-YH5-610 is the right fit for your unit
- Protects Flow Performance — a cracked, worn, or damaged volute case disrupts the pressure differential the pump relies on, causing loss of prime, reduced flow, and inefficient pumping
The volute case is the snail-shaped outer housing that surrounds the impeller in a centrifugal water pump. As the impeller spins, the volute's gradually widening channel converts the rotational energy of the water into pressure and directed flow — the shape itself is what makes the pump move water efficiently. When the volute case is cracked, worn, or damaged, the pump loses the tight hydraulic environment it needs to build suction and maintain flow, resulting in poor prime, reduced output, or complete pump failure.
Part Details
| Part Number | 78107-YH5-610 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Volute Case |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Water Pump | 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.
