The Honda 78136-YG0-003 Outlet Gasket is a genuine OEM Outlet Gasket designed for WT20 and WT30 water pumps. As a factory-original component, this gasket is manufactured to Honda's exact specifications, ensuring a proper seal at the pump's discharge outlet. Confirm your pump's serial number against the fitment table before ordering to ensure this is the correct part for your unit.
Key Features
- Discharge Seal Integrity — as a genuine OEM gasket, this part is dimensioned to Honda's exact tolerances, delivering a consistent, pressure-resistant seal at the outlet port where aftermarket substitutes are prone to mismatches
- Direct OEM Replacement — fits WT20 and WT30 water pumps; installs directly in place of the original with no modification required to the outlet connection
- Serial Number Verification Recommended — Honda updates parts at production serial breaks, so cross-check your pump's serial number against the fitment table to confirm part number 78136-YG0-003 is the correct gasket for your serial range
- Leak Prevention — a deteriorated or damaged outlet gasket allows pressurized water to escape at the discharge connection, reducing pump output and potentially damaging surrounding components; replacing it promptly restores full flow performance
The outlet gasket sits at the pump's discharge port, creating a sealed interface between the pump housing and the outlet fitting or discharge hose connection. In a centrifugal pump like the WT20 and WT30, the impeller generates significant pressure at the outlet, and the gasket must hold that pressure to deliver full flow to the discharge line. When the gasket degrades, cracks, or compresses unevenly over time, water escapes the joint, reducing the pump's effective output and leaving moisture where it can cause corrosion or connection damage.
Part Details
| Part Number | 78136-YG0-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Outlet Gasket |
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.
