Ford Parts 7C19-3E586AE Power Steering Pressure Hose for Ford Transit V348 On a Transit V348 / New Gen Quanshun that lives on the motorway or a building site, the 7C19-3E586AE is the high-pressure line that carries boosted fluid from the power steering pump straight to the steering rack . It's not the return hose — it runs at system pressure, so when the CSM rubber section ages, the union nut weeps, or the galvanised hard line rusts through at the bracket, you lose assist