This engine oil cooler assy is suitable for the doosan DL08K.And the engine is installed on the following models of Doosan excavators:DX300LC-3,DX300LC-5,DX300LC-5K,DX300LC-7,DX300LC-7K,DX320LC-7,DX340LC-3/DX350LC-3,DX340LC-5/DX350LC-5,DX350LC-7,DX350LC-7K,DX380LC-3.