They have the same features as the exchangers of the series MS 84 B and MS 134 P.
They are applied inside the oil tank by means of a flange, welded on the exchanger, which must interface with a counter-flange, welded on the tank wall.
These exchangers are used when it is necessary to reduce the dimensions of the gearcase. The pipe fitting for oil inlet is always outside the tank.
The exchangers can be checked only from one side, outside the tank, in correspondence with the head and the pipe fittings for oil inlet and outlet. As the internal cleaning is not always easy, we recommend the use of the version outside the tank, if the cooling water is particularly dirty.
The exchange surfaces range from 0,2 a 3,7 m².