OMC Evinrude Johnson Seal

OMC, Evinrude, and Johnson seals are used to prevent fluid leakage and protect the engine's components from dirt and debris. These seals are typically made of rubber or rubber-like materials and are designed to fit snugly into specific areas of the engine, such as the crankshaft and camshaft, to create a tight seal. They come in various shapes and sizes to fit different engine components. 

Here's a more detailed breakdown

Function: 

OMC Evinrude, and Johnson seals prevent the leakage of oil, coolant, and other fluids from within the engine, ensuring proper lubrication and preventing contamination. 

Material:

Seals are commonly made from rubber or rubber like materials, which are flexible and durable enough to whit stand the engine's operating conditions.

Types:

There are different types of seals, including oil seals, shaft seals, and O-rings, each designed for specific applications

OEM Vs Aftermarket

It's important to note that some seals are factory original equipment parts, while others are aftermarket replacement. 

Part Numbers:

Each seal has a unique part number that identifies it, making it easier to order and identify the correct replacements.

Importance:

Properly sealing the engine's components is crucial for the engine's performance and longevity. A leaking seal can lead to reduced engine power, damage to bearings, and even engine failure.