This REINZ Crankshaft Seal is made of MVQ (silicone rubber) and has an inner diameter of 82mm, an outer diameter of 105mm, and a height of 12mm. It features a Radial Shaft Seal Design A and a left-hand twist swirl type. The fitting position is on the transmission side and the front side. It is compatible with various ALFA ROMEO models including SPIDER (115), 164 (164), 75 (162B), 155 (167), Giulia Limousine (105_), 1750-2000 (105_), GTV (116), GT, SPIDER (105), ALFETTA GT (116), ALFETTA (116), GIULIETTA (116), GIULIA GT, and 90 (162). The part number is 81-51148-30 and it cross-references with OEM number 60517110. This is a crankshaft gasket, shaft seal, and crankshaft.