The rad was BMW OEM from the dealership. I did not pay for it, lol. The putty I speak of is duct sealant. It is sticky and very firm. It costs 2 dollars at the home Depot for a 1 lb brick. It's in the electrical section fyi. It's made by Gardner Bender. Great stuff. It never hardens or shrinks. Sticks to all sorts of surfaces. |