The Honda 78313-954-000 Coupling Gasket is a genuine OEM part designed for WA20 water pumps. As a direct Honda OEM component, it is manufactured to the exact specifications required for a proper sealing fit at the coupling joint. This gasket is the correct replacement for WA20 pumps, so verify your model and serial number against the fitment table before ordering to ensure this is the right part for your unit.
Key Features
- Genuine OEM Sealing Integrity — sourced directly from Honda, this gasket delivers the material grade and dimensional accuracy needed to maintain a leak-free coupling connection on WA20 water pumps
- Exact-Match Replacement — manufactured to Honda's original specifications, this part installs into the WA20 coupling assembly without modification
- Verify Before You Order — Honda supersedes parts at serial number breaks, so cross-reference your pump's serial number against the fitment table to confirm this is the correct gasket for your unit
The coupling gasket forms a pressure-tight seal at the junction between coupled pump components, preventing water from escaping under operating pressure. On a water pump like the WA20, a properly seated gasket is essential to maintaining full flow and prime — a compromised or worn gasket allows water to leak at the joint, causing pressure loss and potentially preventing the pump from priming. Replacing a damaged gasket with the correct OEM part restores the integrity of the coupling and keeps the pump operating as intended.
Part Details
| Part Number | 78313-954-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Coupling Gasket |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Water Pump | WA20 | 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.
