Honda 18381-896-306 Muffler Gasket

The Honda 18381-896-306 Muffler Gasket is a genuine OEM Muffler Gasket designed for EX800 generators, F200 tillers, G100 horizontal shaft engines, and WA15 and WB15 water pumps. As a direct Honda OEM part, it is manufactured to the same specification as the component that left the factory, ensuring a proper seal at the muffler joint. Verify your machine's serial number against the fitment table before ordering, as Honda periodically updates parts at serial breaks, and confirming part number 18381-896-306 against your unit's records is the surest way to get the right gasket the first time.

Key Features

• OEM Exhaust Sealing — genuine Honda construction delivers the correct clamping area and material grade needed to seal combustion gases at the muffler joint, preventing exhaust leaks that rob power and create noise
• Direct OEM Replacement — this gasket seats exactly as the original, requiring no trimming or modification to fit the muffler flange
• Broad Fitment — covers EX800 generators, F200 tillers, G100 horizontal shaft engines, and WA15 and WB15 water pumps, including multiple serial ranges across those models
• Check Your Serial Number — Honda supersedes gasket part numbers at production breaks; confirm your machine's serial number against the fitment table to ensure this is the correct revision for your unit

The muffler gasket sits between the exhaust port on the engine's cylinder head and the muffler inlet flange, creating a gas-tight seal that keeps hot exhaust gases directed through the muffler and out of the exhaust system properly. Without a sound seal at this joint, exhaust gases can escape before reaching the muffler, producing a loud popping or hissing noise, reducing back-pressure balance, and exposing nearby components to concentrated heat. When a muffler gasket burns through or loses its crush, replacing it promptly restores quiet, efficient exhaust flow and protects the surrounding hardware from heat damage.

Part Details

Compatibility & Fitment

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.