(Hopefully) Quick Question, 280SE 4.5 Heater Hoses

[Bezant]

Hi guys,


I want to replace the heater hoses, one is seeping slightly and the other looks equally as old and ready to go.



I know the passenger side is is 109-831-05-94.


Common parts websites don't seem to carry the driver's side. Looking at a couple online catalogs they list two other hoses, 109-831-04-94 and 109-831-06-94 but don't specify which is correct or if they are interchangeable.



I'm told the drivers side has two different diameters so I can't just use a generic hose (thanks engineers...)


I really don't want to pull the old hose and have ordered the wrong part as I don't think the old one will go back on and hold water in its current shape.