Advice on Generator vs Alternator

The center is aluminum tubing, but think your confusing Whitney with Power Master on the diameter. The Whitney keeps the original dia.

I don't know anything about Powemaster I have a Whitney that I have been running now for 10 years. The i.d. may be larger must be some reason thy do not use the original case to house Kawasaki alternator.
 
Have you measured it?

I just went out and measured both an original '37 generator case and my Whitney '37 look alike. The original case is approximately 4 1/2 " outside diameter and the Whitney aluminum case is almost 3/8" diameter larger at 4 /15/16" diameter looks like they may take a cleanup cut on 5" diameter tubing. This is on a '37 and the way they did it about 2007 so may be different now or on your year.I just remember at the time I was told they cannot use the original case because alternator will not fit inside.
 
I just put a Powermaster in my truck. Their diameter is listed as 5.25" but it doesn't look odd and it fit very well. I had been running a 1 wire GM type alternator for the past 17 years and it finally quit so I though I would try something different.
 
I just went out and measured both an original '37 generator case and my Whitney '37 look alike. The original case is approximately 4 1/2 " outside diameter and the Whitney aluminum case is almost 3/8" diameter larger at 4 /15/16" .

I just put a Powermaster in my truck. Their diameter is listed as 5.25" but it doesn't look odd and it fit very well. QUOTE]

Good feed back!
 
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