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DNJ Piston Ring Set DNJ® Engine Piston Ring Sets are precision-engineered to provide a reliable seal between the piston and cylinder wall in internal combustion engines. Each set includes a complete set of rings required to service every piston in the engine, ensuring consistent performance across all cylinders. Typical configurations include top compression rings, second (wiper) rings, and oil control rings designed to optimize compression retention, regulate oil consumption, and support effective heat transfer.
DNJ® Engine Piston Ring Sets are manufactured from high-quality cast iron or steel alloys for exceptional strength, wear resistance, and thermal stability. Advanced surface treatments such as chrome plating, molybdenum coating, or nitriding are applied to improve sealing performance, reduce friction, and extend service life under extreme engine conditions.
DNJ® Engine Piston Ring Sets are manufactured to meet or exceed OEM quality standards.
DNJ® also offers a full line of related components including pistons, connecting rod bearing sets, crankshaft main bearing sets, complete engine rebuild kits, and more ensuring full compatibility and performance across engine systems. With precision engineering and top-tier materials, DNJ® Engine Piston Ring Sets deliver exceptional performance and long-lasting durability.
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