This Yanmar marine diesel engine is a reliable and high-performing option for boat owners. With a 4-stroke engine, it provides efficient and powerful performance for your boating needs. The manufacturer part number is 146673-51300 and it is made in Japan. This engine is perfect for those looking for a replacement or for those who want to upgrade their current engine. It comes with a core charge of $10.00 and has no warranty. It is compatible with various boat models and is a great fit for those who want to invest in a reliable and durable diesel engine.