The invention relates to a sealing element (1) for sealing between an electric line (2) and a housing (100). In order to provide a sealing element (1) for a plurality of different line diameters, provision is made according to the invention for the sealing element (1) to have an elastically expandable inner sleeve (5) which has, in an axial direction (X) of the sealing element (1), a passage opening (4) for the line (2) which has at least one inner sealing surface (6a, 6b) extending along its inner periphery (6), an outer sleeve (10) surrounding the inner sleeve (5), which outer sleeve has at least one outer sealing surface (11a, 11b) extending along its outer periphery (11), and comprises at least one compensation section (7a-d) which is designed to be compressible in a radial direction (Y, Z) of the sealing element (1) and has a yieldingness which is greater than the yieldingness of the outer sleeve (10).