BMW OEM Alternator for G8X M2/M3/M4 (12318571358) Wiseco +18 HP / + 8

+18 HP / + 8 LB-FT TQ on Unitronic MAHA LPS3000 dyno

• Custom investment cast Y-Pipe equalizes flow for improved performance and sound

If you have a Pre-1990s Motorcycle replace your voltage regulator

(1) 90° Silicone Upper Hose

BMW OEM Alternator for G8X M2/M3/M4 (12318571358) Wiseco +18 HP / + 8A 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