Hi, on another thread I mentioned the BMW fan on my TR4A IRS instead the original steel / aluminium one. It was alreday on the car when I bought it in 2009. It is from the BMW models 1502, 1602, 1802, 2002 from the 70-ies and at Germany I have seen it on lots of TR 4 cylinders because it is highly recommended. Some years ago I thought it would be nice to have the car with the original fan, but with the original it run badly like a sack of nuts! Also I had to realize