redvettemike

Should my '71 442 have an alternator with an internal voltage regulator or should it be external? The one that is on it is internal. However, I bought an alternator many months ago from an ACDelco dealer (one that I just now am trying to put on the car) and it is an external regulator type (but supposedly was correct for my year and model.) Thanks for any direction on this question.

joe_padavano

442s came with internal regulators that year, other Cutlii still used the external regulator. The parts store gave you the wrong one.

redvettemike

Thanks much.

2blu442

The internally regulated alternators of this vintage are hard to find. You may be ahead of the game to just take the bad one to a rebuilder and have it gone through. My 2 cents. John

redvettemike

I had not thought of that. Thanks for the insight.

redvettemike

A user on this forum-Yellowstatue- advises the following: It should be an alternator with an internal regulator (these for 442's); Part Number 1100934-42 Amp; 1100935-63amp-with a/c and HD cooling; 1100949-63amp with a/c, HD cooling and rear window defog. Good infomation for those that need to know-like me. Thanks

Aceshigh

Where can I find info on how to switch my 1970 442 clone to a INTERNALLY
regulated alternator, like something more modern, and not a CS130 ??