To allow north american wiper blades to be installed onto the L400 vans these adaptors must first be installed to the wiper arm. Two needed per vehicle.
I was looking for those adapters for a few months now and could not find the ones that would fit. I finally found them with CCA and the quality is very good. Definitely recommend it for anyone looking to go for standard wipers. CCA has also a very good customer service and they ship in minutes. We received it 3 days after the order so if you're looking at those adapters, don't wait more and order them!