This oil seal is made from premium materials, and the outer case is steel,with a flat flange, like they were years ago.....
OIL SEAL timing cover seal that fits from the inside suits all minis and mokes.
TIP when reinstalling timing cover leave all bolts loose, grease the seal area on the pulley and fit it to centralise the oil seal. Then tighten bolts This aids in giving this leaky area the "best chance"