fits make: Mercury. year: 2012.

( Manufacturer Part Number: 39-78811A12 ), ( Part Type: Ring Piston Motor )
The 39-78811a12 Mercury 015 Piston Ring Set is an essential component for maintaining the optimal performance of your outboard motor. This set includes 12 piston rings, meticulously engineered to ensure a perfect seal between the piston and the cylinder wall in your Mercury outboard engine. Each ring is made from high-quality materials, designed to withstand the harsh conditions of marine use.
The Mercury 015 Piston Ring Set is specifically tailored to fit the 0.150-inch (3.81 mm) piston diameter, ensuring a precise fit for your engine. The set includes a mix of compression rings, oil control rings, and wear rings, all of which serve distinct functions in the engine's operation. The compression rings help to contain the combustion pressure, while the oil control rings manage the flow of oil into the combustion chamber. The wear rings, on the other hand, help to reduce friction and prolong the life of the piston.
Each piston ring in this set is precision-machined to ensure a perfect fit, ensuring optimal engine performance and reducing the risk of leaks. The Mercury 015 Piston Ring Set is an excellent investment for any outboard engine owner, providing the peace of mind that comes with knowing your engine is running at its best. Whether you're a seasoned boater or a newcomer to the world of marine engines, this piston ring set is a must-have addition to your toolkit.
Pros of buying a 39-78811a12 Mercury 015 Piston Ring Set 12 pcs:1. Compatibility: This piston ring set is specifically designed for Mercury outboard motors with the model number 39-78811, ensuring a perfect fit.
2. Value for Money: Purchasing a set of 12 piston rings can save you time and money compared to buying them individually.
3. Quality: Mercury is a trusted brand known for producing high-quality marine parts. This piston ring set is no exception and should provide reliable performance.
Cons of buying a 39-78811a12 Mercury 015 Piston Ring Set 12 pcs:1. Limited Application: As this set is designed for a specific model, it may not be compatible with other Mercury outboard motors.
2. Installation Requires Skill: Installing piston rings can be a complex process and may require specialized tools or professional assistance.
Ending Conclusion:If you own a Mercury outboard motor with the model number 39-78811, the 39-78811a12 Mercury 015 Piston Ring Set 12 pcs is a cost-effective and reliable solution for replacing worn-out piston rings. However, if you are unsure about the installation process or if your motor model is different, it may be worth consulting a professional mechanic to ensure a proper fit and installation.
Recommendation:If you are confident in your ability to install piston rings and your Mercury outboard motor matches the model number, this piston ring set is a worthwhile investment. However, if you are unsure or have concerns, it's recommended to consult a professional mechanic before making a purchase to ensure you get the right parts for your motor.
Item: this listing is for oversize.
015 piston rings 12 per set 39-78811A12. Condition: new inventory: nos trailer bin 39-813011a12 39-817096a16 location: marine supply is located on 2238 e pass rd.
Fits various Mercury outboard motors.