Bosch or Valeo-Style Alternator with ARO 081 Voltage Regulator (70-90 Amp)

12V, 70-90A output, external voltage regulator (black round module labeled “ARO 081”, likely made in Korea, with screw terminals), silver body, black V-pulley, internal fan visible through vents, and side-mounted regulator. Triangle mounting with adjustment lug. The regulator controls output to ~14V and is replaceable separately.