356B thru 912. This special washer goes under the cylinder head nut in 356B thru 912 engines. It is used only under head nuts with groove on the OD. Dimensions are 10 x 19 mm.

Note: Although this washer may look like any normal washer, the 19 mm OD is a critical fit in the pocket of the cylinder head.

16 pieces are needed per car. Price is per each.