Intake Manifold Gasket 13119-93J00

Function and Technical Context

The intake manifold gasket acts as a watertight seal between the intake manifold and the engine cylinder head, ensuring that the air-fuel mixture flows to the cylinders without leaks or pressure loss. It is part of the fuel supply and gas distribution system of the outboard engine, operating under continuous heat and pressure cycles typical of high-performance engines such as the Suzuki DF200, DF225 and DF250. When this gasket deteriorates, vacuum leaks appear that alter the fuel mixture, cause power loss, unstable idle and irregular fuel consumption that can compromise navigation. Its correct installation is essential to maintain the volumetric efficiency of the engine and throttle response across the entire operating range.

When to Replace This Part?

The most common symptoms of a worn intake manifold gasket are irregular or unstable idle, noticeable power loss during acceleration, increased fuel consumption and, in advanced cases, audible whistling or hissing sounds in the manifold area. It is recommended to inspect this gasket at each seasonal maintenance interval or whenever the intake manifold is removed for any other service, as retightening and thermal cycles progressively wear it. Replacing it preventively at the first sign of a leak prevents major engine damage and an involuntary stoppage at sea.

Compatible Johnson/Evinrude Engines

Equivalent Manufacturer References