Ford Parts 7C19-17B437AB Radiator Cooling Fan Assembly for Ford Transit V348 On a Transit V348 / New Gen Quanshun, the driver-side wiper sweeps the biggest arc of the screen, so when the 700 mm blade goes hard or the rubber splits, you lose the strip right in your eyeline — exactly where you can't afford it on the motorway. UV bakes the rubber brittle in a single summer if the van lives outside, and a dirty screen does the rest. 7C19-17B437AB is the driver-side blade only: