fits make: Omc. year: 1970–1986-94.

( Brand: Sierra ), ( Manufacturer Part Number: 18-4064 ), ( Part Type: Ring Hp Piston )
The OMC 398483 30 Piston Ring Set is a comprehensive replacement solution for 18-4064 engines, specifically those used in 1986-1994 Sierra vehicles with power outputs of 60, 65, or 70 HP. This set includes all the necessary piston rings to ensure the optimal performance and longevity of your engine.
The OMC 398483 30 Piston Ring Set is meticulously designed to fit the unique specifications of the 18-4064 engine. It includes three different ring sizes (60, 65, and 70) to cater to the varying demands of different power outputs. The set includes top rings, second rings, and oil control rings, ensuring a comprehensive replacement solution for your engine.
The top rings in this set are designed to seal the combustion chamber, preventing the loss of compression and promoting efficient combustion. The second rings, also known as compression rings, help to maintain the seal between the piston and the cylinder wall, while the oil control rings help to manage oil consumption and prevent engine oil from entering the combustion chamber.
Made from high-quality materials, these piston rings are designed to withstand the rigors of high-performance engine operation. They are resistant to wear and tear, ensuring a long service life and minimal maintenance requirements.
Installing the OMC 398483 30 Piston Ring Set is a straightforward process, requiring only basic hand tools. The set includes detailed installation instructions to guide you through the process, ensuring a hassle-free and accurate installation.
In summary, the OMC 398483 30 Piston Ring Set is a reliable and efficient replacement solution for your 18-4064 engine. With its precise fit, high-quality materials, and comprehensive design, this set is the perfect choice to keep your Sierra running smoothly and efficiently.
Pros of purchasing a 18-4064 OMC 398483 30 piston ring set for 1986-94 Sierra engines:1. Compatibility: This piston ring set is specifically designed for engines in the 1986-94 Sierra model, ensuring a perfect fit.
2. Variety of sizes: The set includes three piston ring sizes (60, 65, and 70) to accommodate different engine conditions and performance levels.
3. High-quality materials: OMC is known for using top-notch materials in their products, which in turn leads to enhanced durability and longevity.
4. Reliable brand: OMC is a reputable manufacturer that has been in the marine and automotive industries for several decades, providing customers with confidence in their products.
Cons of purchasing a 18-4064 OMC 398483 30 piston ring set for 1986-94 Sierra engines:1. Cost: Piston ring sets can be expensive, especially when purchasing a high-quality product from a reputable brand like OMC.
2. Installation complexity: Installing piston rings can be a challenging process, requiring the removal of the engine's cylinder heads and precision measurements.
3. Potential for mismatch: While the set includes three piston ring sizes, it may not perfectly match the current condition of your engine, potentially leading to performance issues or engine damage if not installed correctly.
Recommendation:Purchasing the 18-4064 OMC 398483 30 piston ring set for 1986-94 Sierra engines can provide reliable performance and enhanced durability. However, before making a decision, consider the cost and the complexity of installation. If you feel comfortable with the installation process or are prepared to pay for professional installation, this set could be a sound investment for your vehicle. Alternatively, you may want to explore less expensive piston ring sets or seek advice from a mechanic to ensure the set is the best fit for your engine's current condition.
This is a Sierra piston ring kit replacing Omc set includes set, wrist pin and for 30 thousandth over fits 60, hp Johnson eventide engines 1986 1994 new in the box.