## Namura NA-80004-4 Complete Piston - 82.958mm This Namura NA-80004-4 complete piston with a diameter of 82.958mm guarantees top quality and performance for your engine. Often overlooked, piston rings are a key element influencing performance, efficiency, and durability. Namura, known for its precision and innovative solutions, designs rings dedicated to specific applications, taking into account the type of cylinder liner, its coating, engine size, and piston stroke. ### Key Features: * **Precise Manufacturing:** The 82.958mm diameter piston ensures a perfect fit and seal. * **High-Quality Materials:** Both compression and oil rings are made of durable alloys, guaranteeing a long service life. * **Optimized Design:** Specially designed rings provide optimal compression and minimal oil consumption. * **Namura Brand:** A guarantee of quality and reliability. ### Compression Rings: Made of highly ductile cast iron or stainless steel alloy, they are characterized by excellent wear resistance and provide a tight seal. Additionally, chrome, phosphate, and nitride coatings increase their durability and corrosion resistance. ### Oil Rings: The oil ring set consists of three elements: two scraper rings made of cast iron or stainless steel, coated with chrome, nitride, or phosphate, and one expander ring made of stainless steel. This design ensures efficient oil drainage and minimizes its consumption.