fits make: Johnson, Evinrude. year: 1977–1988.

( Brand: Evinrude ), ( Manufacturer Part Number: 0391378 ), ( Part Type: Unit Cylinder Driveshaft )
The Evinrude 0391378 Johnson 60-75hp 20 lower unit cylinder spline driveshaft is a crucial component for any outboard motor enthusiast. This driveshaft is designed specifically for Evinrude Johnson engines with a power output ranging from 60 to 75 horsepower, and is compatible with lower units from the years 1977 to 1988.
The driveshaft is a key element of the motor's propulsion system, connecting the lower unit to the propeller. It's made from high-quality materials, ensuring durability and reliability even under heavy use. The 20-spline design provides a secure connection between the driveshaft and the lower unit, reducing the risk of slippage and ensuring smooth operation.
This specific driveshaft is a replacement part, designed to fit perfectly into your existing Evinrude Johnson motor. It's important to note that while this driveshaft is compatible with a range of engines and lower units, it's always a good idea to double-check your specific model before making a purchase to ensure a perfect fit.
In terms of installation, the Evinrude 0391378 Johnson 60-75hp 20 lower unit cylinder spline driveshaft is relatively straightforward to replace. However, if you're not confident in your ability to do so, it's always best to leave the job to a professional. Proper installation is crucial to ensure the safety and performance of your motor.
In summary, the Evinrude 0391378 Johnson 60-75hp 20 lower unit cylinder spline driveshaft is a reliable and durable replacement part for your Evinrude Johnson outboard motor. Its 20-spline design provides a secure connection to the lower unit, while its high-quality materials ensure long-lasting performance. Whether you're a DIY enthusiast or prefer to leave the installation to a professional, this driveshaft is a great choice for keeping your Evinrude Johnson motor running smoothly.
Pros of buying Evinrude 0391378 Johnson 60-75hp 20 lower unit cylinder spline driveshaft (1977-1988):1. Compatibility: This driveshaft is specifically designed for Evinrude Johnson engines with a power output of 60-75hp, which can be a significant advantage for boat owners with these engine models.
2. Durability: The 20-spline design is known for its strength and reliability, making it a good choice for boats that will be used frequently or in rough water conditions.
3. Availability: As this is a common spline size, replacement parts are generally easy to find, which can save time and money in the long run.
4. Cost-effective: Compared to some newer driveshafts, this Evinrude Johnson model may be more affordable, making it a budget-friendly option for some boat owners.
Cons of buying Evinrude 0391378 Johnson 60-75hp 20 lower unit cylinder spline driveshaft (1977-1988):1. Age: Being a part from the 1970s and 1980s, this driveshaft may have worn out components or may not meet the latest safety standards.
2. Potential compatibility issues: While this driveshaft is designed for Evinrude Johnson engines, there might be slight variations in the engine models within this range, which could potentially lead to incompatibility.
3. Harder to find in new condition: Since this part is older, it may be more challenging to find a new one in perfect condition, and you might need to settle for a used or refurbished one.
4. Limited technology: Older parts may not have the latest technological advancements that newer driveshafts offer, such as improved efficiency, better corrosion resistance, or enhanced durability.
Conclusion:The Evinrude 0391378 Johnson 60-75hp 20 lower unit cylinder spline driveshaft (1977-1988) is a reliable and cost-effective option for boat owners with older Evinrude Johnson engines. However, its age and potential compatibility issues should be considered before making a purchase. It might be beneficial to consult with a professional or check the specific requirements for your engine model before proceeding with the purchase.
Good water pump impeller. 1977-1988 60-75 HP 4 spline drive shaft. Lower is in good condition spins and shifts as it should straight prop shaft. Fits model's below possibly more contact me with any questions.
Removed from freshwater 1984 Johnson 3 cylinder 70 HP 2 stroke 20 4 spline drive shaft. See pictures of unit.