Jeff Toomasson wrote: > the copper crush washers... Crush washers are N numbers: N 13 805 2 = CA 12 x 18 N 13 815 2 = CA 14 X 20 Sealing washers (flat) are similar: N 13 804 2 = CM 6 x 10 N 13 805 3 = CM 12 x 18 N 13 849 2 = CM 14 X 20 These #s are from an old IMC book. Any good VW shop should have them and I think those are also good at any German dealer.