BMW OEM Alternator for G8X M2/M3/M4 (12318571358) Competition clutch 3 for each front wheel

3 for each front wheel and one for the rear

this is the replacement part

and upgrade to the Clutch Masters 17lb lightweight aluminum flywheel

Most QM pressure plates will use 8 bolts including the Evolution

ECU resetting is not required in order to use this product

BMW OEM Alternator for G8X M2/M3/M4 (12318571358) Competition clutch 3 for each front wheelA faulty alternator may not produce enough electricity to power your BMW or charge the battery. If your car is losing power, it could be due to a worn or failing alternator. While the battery stores energy to start the car, the alternator powers all systems when the engine runs and maintains the battery charge. If your car dies while driving and the battery is low, the alternator is likely the issue. Before diagnosing, test with a digital volt meter