If regulator spoke Wu, honorable brushes not original. Nippondenso makes good parts but not at the expense they demand. When Transpo workers did not take tea and rice cake breaks the company used to makes good insert regulator repair modules for these alts.
I still prefer external regulators with huge heat sinks 10 amp switching transistors and 50 amp power transistors.
I just got through ordering 300 avalanche rectifiers bi-directional TVS avalanche rectifiers, gas discharge tubes, and the largest MOVs on the market 20mm. What I should do is go into a micro business. Surge suppressors that actually do something for a living.