M50 Drilled Oil Pump Nut

These nuts have a habit of coming off in track situations, leaving you with no oil pressure and a blown engine.  This nut, pre-drilled for safety wire, is the proper solution to the problem.  A must if you track your car. 

Fits all 6 cylinder E36/E46 3 Series, Z3/Z4, and E34/E39 5 Series, except Euro S50 (E36 M3 Euro models) and all S54 (E46 M3, 2002+ MZ3/MZ4). Includes safety wire to complete installation, oil pan gasket available separately (model dependant). On reinstall, torque to 17 ft-lb.