Main Engine 4-Stroke · Main Engines (4-Stroke)
Proper maintenance is crucial for ensuring the longevity and optimal performance of any marine engine. The Yanmar 6N21L boasts a robust design and is widely used as an auxiliary engine in bulk carriers and tankers. This 4-stroke engine, part of the 6EY26 family, features a bore of 210mm and a stroke of 320mm, delivering a maximum continuous rating (MCR) of 1500kW at 900 rpm. Fuel-efficient and versatile, the 6N21L can operate on both Heavy Fuel Oil (HFO) and Marine Diesel Oil (MDO) thanks to its HFO-capable system with a preheating feature. The engine's specifications include a compression ratio of 16.8:1 and an oil consumption rate below 1.1 grams per kilowatt-hour. The Yanmar 6N21L is known for its wide service network, particularly strong in Asia, ensuring readily available support for owners.
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