OMC 388078 Gearcase Head

( Brand: Omc ), ( Part Type: Head ), ( Manufacturer Part Number: 388078 )

Review OMC Johnson Evinrude Gearcase Head

The OMC 388078 Johnson Evinrude Gearcase Head is a vital component of your outboard motor's propulsion system. This gearcase head is specifically designed for use with Johnson and Evinrude 115, 140, and 150 HP outboard engines.

This gearcase head features a robust and durable design, with high-quality materials and precise manufacturing techniques ensuring a long service life. The casing is made from cast aluminum, providing both strength and corrosion resistance, while the internal gears are engineered for smooth, efficient power transmission.

One of the standout features of this gearcase head is its ability to accommodate both conventional and Jet Drive applications. This versatility makes it a popular choice for a wide range of watercraft, from fishing boats and pontoons to personal watercraft and high-performance vessels.

The OMC 388078 Johnson Evinrude Gearcase Head is designed to be easy to install, with a secure and reliable mounting system that ensures a stable connection to the motor. It also features an integrated oil cooler, which helps to maintain optimal operating temperatures for the gearcase and engine, enhancing overall performance and longevity.

This gearcase head comes with all necessary seals, gaskets, and hardware for a complete installation, making it a convenient and cost-effective solution for outboard motor owners in need of a replacement. With its high-performance design, versatile application, and easy installation, the OMC 388078 Johnson Evinrude Gearcase Head is an essential upgrade for any outboard motor enthusiast looking to maximize the potential of their watercraft.

Buying the OMC 388078 Johnson Evinrude gearcase head is an investment in the performance and longevity of your outboard motor. Here are some pros and cons to help you make an informed decision.

1. Enhanced Performance: Replacing a worn-out or damaged gearcase head with a new one can significantly improve the overall performance of your outboard motor. It ensures that all the gears inside are functioning correctly and efficiently.

2. Durability: Johnson Evinrude gearcase heads are known for their durability and reliability. They are built with high-quality materials and undergo rigorous testing to ensure that they can withstand the harsh marine environment.

3. Easy Installation: Installing a new gearcase head is a straightforward process, especially if you're replacing an old one. You can either do it yourself or hire a professional to do it for you. The process typically involves draining the gearcase, removing the old head, and installing the new one.

4. Improved Fuel Efficiency: A well-functioning gearcase head can help improve your outboard motor's fuel efficiency. This is because the gears inside the head transmit power more efficiently, reducing the workload on the engine and allowing it to run at optimal RPMs.

1. Cost: The OMC 388078 Johnson Evinrude gearcase head is not a cheap upgrade. It can be quite expensive, especially when compared to the cost of other outboard motor parts. However, the investment is worth it if you value performance and reliability.

2. Availability: Finding a new OMC 388078 Johnson Evinrude gearcase head may not be as easy as finding other outboard motor parts. It's essential to order it from a reputable dealer or supplier to ensure that you're getting an authentic part.

3. Installation Time: While the installation process is straightforward, it can still take some time to complete. If you're not confident in your ability to install the gearcase head yourself, it's best to hire a professional to do it for you.

In conclusion, the OMC 388078 Johnson Evinrude gearcase head is an excellent investment for those who value performance and reliability in their outboard motor. While it may be expensive and time-consuming to install, the benefits of improved performance, durability, and fuel efficiency make it worth the investment. If you're considering upgrading your outboard motor's gearcase head, be sure to order from a reputable dealer or supplier and plan for some installation time.

Recommendation: If you're looking for a high-performance and reliable gearcase head for your Johnson Evinrude outboard motor, the OMC 388078 is an excellent choice. While it may come with a higher price tag, the benefits it provides make it a worthwhile investment for those who value performance and reliability on the water.

Details:

Lot bjo2826a18-13D. Good used gear case head from a 1989 Johnson 28 HP outboard.

part #: 388078 prices

• $39.99-$50.89

specifications vesselveep:

• for makes: Johnson, Evinrude, Omc
• brand: Omc
• part type: Head
• manufacturer part number: 388078

shipping vesselveep:

• transit: 3-7 Days
• type: Fixed
• class: Economy
• cost: $0.00
• service: Economy

general vesselveep:

• condition: Used
• Parts Accessories > Boat Parts > Other

offer vesselveep:

• quantity: 1
• sold: 0
• started: April 21, 2026
• availability: In Stock
• options: Ship-to-home

payments vesselveep:

• credit card: Discover
• other
• wallet: Apple-pay

returns vesselveep:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

seller vesselveep:

• # reviews: 2263
• rating: 100.0%
• city: Maquoketa, Iowa

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