fits make: Johnson, Evinrude, Omc. year: 1978–2004.

( Brand: Johnson ), ( Part Type: Hp Piston )
The Johnson Evinrude boat piston, model number 1978-04 0390000 390000, is a crucial component of the OMC (Outboard Marine Corporation) engine range, specifically for horsepower ratings between 50 and 235. This piston is designed for high-performance applications, ensuring optimal engine operation and longevity.
The piston is manufactured with precision and care, using top-quality materials to ensure durability and reliability. The piston head is crafted from forged aluminum, providing strength and heat resistance, while the skirt is made from a high-tensile steel alloy, ensuring a tight seal with the cylinder wall.
The piston rings, an essential part of the piston, are made from a composite material that provides excellent sealing and minimizes friction, contributing to improved engine efficiency and reduced emissions. The piston also features a reliable wrist pin and pin retainer system, ensuring proper piston movement within the cylinder and preventing damage due to excessive loading or vibration.
This Johnson Evinrude boat piston is specifically designed for use in the OMC engine family, ensuring a perfect fit and seamless integration with the engine. It's recommended to replace pistons at regular maintenance intervals to maintain engine performance and prolong engine life.
In summary, the Johnson Evinrude boat piston 1978-04 0390000 390000 is a high-quality, reliable component essential for the proper functioning of your OMC engine. Its precision manufacturing, high-quality materials, and perfect fit make it an excellent choice for boat owners seeking top engine performance and longevity.
Pros of buying a 1978-04 0390000 390000 Johnson Evinrude boat with a HP 50-235 OMC engine:1. Powerful engine: The OMC engine with a horsepower range of 50-235 is powerful enough to handle various water activities, making the boat ideal for both leisurely cruises and water sports.
2. Reliable brand: Johnson and Evinrude are renowned and trusted brands in the marine industry, offering a reputation for durability and reliability.
3. Versatility: The 50-235 HP engine provides a wide range of options, catering to a variety of boat sizes and types, making it a versatile choice for boat owners.
4. Availability of parts: Since Johnson and Evinrude engines are widely used, finding replacement parts and servicing is relatively easy and cost-effective.
Cons of buying a 1978-04 0390000 390000 Johnson Evinrude boat with a HP 50-235 OMC engine:1. Age: Being a 1978 model, the boat may have older technology and materials, which may require more frequent maintenance and repairs.
2. Higher cost of ownership: Older boats often have higher operating and maintenance costs due to the need for specialized parts and repairs.
3. Limited modern features: Compared to newer models, the 1978 boat may lack modern features such as GPS, fish finders, and other electronic devices.
4. Aesthetic concerns: Older boats may not have the same sleek, modern look as more recent models, which could be a turn-off for some buyers.
In conclusion, while the 1978-04 0390000 390000 Johnson Evinrude boat with a HP 50-235 OMC engine offers a powerful and reliable engine, it may come with higher maintenance costs and lack modern features. Therefore, potential buyers should weigh these factors against the lower initial purchase price and consider their specific needs and preferences before making a decision.
Recommendation: If you are looking for a powerful engine and are willing to invest in regular maintenance, the 1978-04 0390000 390000 Johnson Evinrude boat with a HP 50-235 OMC engine could be a good option. However, if you are looking for a boat with modern features and lower maintenance costs, you may want to consider newer models instead.
Condition new old stock. Item listing 1 piston assembly. This part has been in storage.
95 shipping via ups ground. For use with various, hp Johnson Evinrude outboard motors.
Contact info or inventory pr c2 4 location marine supply on hwy 49 in Gulfport, ms directly across from Lowe's 84 lumber.
Marine supply is a real business with an enormous 26,000 sq ft retail floor, many employees and several certified marine mechanics with decades of experience on both outboard and I o marine engines.
Please see included pictures.