1. Personal Watercraft Engines, Impellers & Components Parts
  2. sku: 6466764517341632
  3. OMC 338878

338878 OMC Carburetor Bowl Gasket Boat Fishing Marine Johnson

fits model: Marine. make: Evinrude, Johnson.

338878 OMC Carburetor Bowl Gasket Boat Fishing Marine Johnson
Product Aspects
BrandOMC
Manufacturer Part Number338878
Sub-typeCARB BOWL GASKET
TypeENGINE PARTS

Review OMC Evinrude Johnson Carb Bowl Gasket 4hp Stroke P/n Boat Fishing for EVINRUDE JOHNSON MARINE

The OMC 338878 Evinrude Johnson carburetor bowl gasket is a crucial component for the efficient operation of your 4 horsepower Evinrude or Johnson marine engine. This gasket is specifically designed to seal the carburetor bowl, ensuring a proper fuel-air mixture for smooth engine performance.

The gasket is manufactured using high-quality materials to provide excellent sealing abilities and resistance to fuel and oil. Its thickness is precisely measured to ensure a perfect fit in your carburetor bowl. The gasket features a flat, circular shape with an outer diameter of approximately 3.25 inches (8.25 cm) and an inner diameter of about 2.75 inches (7 cm).

The OMC 338878 carburetor bowl gasket is an essential replacement part for marine engines used in fishing boats, personal watercraft, and other small watercraft applications. It is especially important for boat owners who use their engines frequently or in harsh environments, as the gasket may wear out over time due to exposure to fuel, water, and extreme temperatures.

Installing this gasket is a straightforward process. Simply remove the old gasket from the carburetor bowl, clean the surface, and apply a thin layer of sealant. Then, carefully place the new gasket into position and secure it in place. Once installed, the engine should run more efficiently, with improved fuel economy and reduced emissions.

In summary, the OMC 338878 Evinrude Johnson carburetor bowl gasket is a vital replacement part for maintaining the performance and longevity of your 4 horsepower Evinrude or Johnson marine engine. This high-quality gasket is designed to seal the carburetor bowl effectively, ensuring a proper fuel-air mixture and smooth engine operation.

The OMC 338878 Evinrude Johnson carburetor bowl gasket for 4 HP outboard engines is an essential replacement part for maintaining the optimal performance of your boat's engine. Here are some pros and cons to help you make an informed decision about purchasing this gasket:

Pros:

1. Improved Engine Performance: A worn-out or damaged carburetor bowl gasket can lead to poor fuel mixture, causing engine misfires and decreased performance. Replacing the gasket ensures a proper fuel-air mixture, improving the engine's overall performance.

2. Enhanced Fuel Economy: A new gasket allows the engine to operate more efficiently, which can lead to better fuel economy, saving you money in the long run.

3. Reduced Emissions: By improving the engine's performance and fuel efficiency, you can also reduce harmful exhaust emissions, making your boat more eco-friendly.

4. Easy Installation: The gasket is relatively easy to install, and the process usually does not require any specialized tools.

Cons:

1. Cost: The price of the OMC 338878 Evinrude Johnson carburetor bowl gasket may be considered high by some boat owners, especially those on a tight budget.

2. Availability: Depending on the location and availability of the part, it may take some time to receive the gasket, potentially causing inconvenience for boat owners who need the engine running as soon as possible.

Conclusion:

The OMC 338878 Evinrude Johnson carburetor bowl gasket for 4 HP outboard engines is an essential replacement part for maintaining optimal engine performance, fuel efficiency, and reducing exhaust emissions. While the cost may be a concern for some, the benefits of improved engine performance and eco-friendliness make it a worthwhile investment.

Recommendation:

If you own a 4 HP Evinrude Johnson or Johnson outboard engine and have noticed signs of a worn-out carburetor bowl gasket, such as engine misfires or poor performance, it is highly recommended to replace the gasket as soon as possible. The improved performance and fuel efficiency, along with the reduced exhaust emissions, make this an investment that can benefit both your budget and the environment in the long run.

Details:

Evinrude 3hp 1993, 1994, 1995, 1996, 1997 Evinrude 4hp Johnson. If you plan on using this any other machine.

specifications watercraftimp:

  • for models: Marine
  • for makes: Evinrude, Johnson
  • brand: Omc
  • mpn: 338878
  • sub-type: Carb Bowl Gasket
  • type: Engine Parts

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  • category: Watercraft Parts > Engines > Impellers Components

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  • started: june 9, 2025

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