It is not unusual to find these engines installed with the skin tank on the port side, which is fine for the water outlet, calorifier and so on.
The water inlet is on the starboard side above the flywheel housing through the oil cooler, which means there has to be a pipe going from one side to the other above the gearbox. Popular choices are lengths of hose or copper pipe fabrications
These are fine, they can put strain on the oil cooler end cap which it isn't really designed for.
Mind you, it isn't hard to attach the feed pipe to the oil cooler with cable ties in the absence of a more engineering solution
Richard