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The Mercedes Benz OM457 Engine is a 11967 cm3 (12 litres) displacement inline 6-cylinder 4-stroke Diesel engine. It is one of many motors in the 400 series of engines. The OM457 has many applications, including Truck, marine, military, municipal, and agricultural vehicles, as well as stationary settings. The engine has differing trim and power levels. The engine is water-cooled, and is produced using cast-iron cylinder block, with cast-in cylinders. The engine utilizes diesel fuel delivered in a direct injection method from a Bosch PES style inline injection pump. The cylinder head is a single unit for all cylinders, and the cylinder head cover and air intake are shared by a single cast aluminum alloy. Exhaust ports 2&3 and 4&5 are siamesed together, presenting an exhaust manifold with only four outlets. The crankshaft is a precision forged unit running in seven three-layer bearings, with counterweights bolted onto the crank webs, much like any other diesel motor of its vintage. The middle bearing is also the thrust bearing. The connecting rods are of a split design, with bronze bushings for the piston pin. This engine have been licensed to Iran Khodro Diesel Company for local production. (Iranian Diesel Engine Manufacturing Co (IDEM) ) Below is listed the specifications for an OM457. This variant is commonly used in the Mercedes Benz trucks, 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mercedes-Benz OM457 engine」の詳細全文を読む スポンサード リンク
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