kklemm
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Posts
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Yes, the A version had an OD of 3 1/2 inches and an ID of 2 1/8 inches. The B version had an OD of 3 3/4 inches and an ID of 2 3/8 inches. Auto-Lite apparently measure the ID at the bottom of the V groove on the pulley. I did not see the actual documents but the Prestolite representative related this information to me from drawings in the microfilm archive. I spoke a little while ago with a generator restorer who had a B version, and he confirmed the measurements above on the pulley.
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For those of you who may be interested (and to update this post with correct information), I spoke with a Prestolite representative today. While I do not understand all of the acquisitions and sales that occurred many years ago, Prestolite possesses archival information on the Autolite generators. He confirmed from the archival information that the difference in the letters at the end of the part number denoted different pulleys. Specifically, the ODs and IDs of the pulleys on the A and B versions differed enough that I do not believe the A version will work on a 1941 Plymouth Special Deluxe P-12 (which the specs indicate requires the B version).
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Thanks! Looks like the GDZ-4801-A should work for my P-12.
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vintage6t: Thanks, I really appreciate you sending additional information and looking for a generator. ken Klemm
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The specifications in my repair manual only say a GDZ-4801 without any letter. An Auto-Lite manual from the time identifies the correct generator for the vehicle as a GDZ-4801-B. If the pulley may be different in size or design, I am concerned about spending several hundred dollars on a generator that will not work in my car. So, I would like a reference that explains the difference between the A and B models.
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Thanks for your reply. I think it should be 6V not 8V. Correct? I am concerned about the pulley size or design of the A model being different from the B model. I do not have the old one against which to compare it as a prior shop lost the generator on me. I have located a couple A models for purchase (along with photos). But, I want to be sure before I purchase the A model that it will work. Someone told me today that it may have something to do with the date of manufacture. But, I cannot verify that information either. I do not know if any of the literature explains what the last letter means. Hopefully, I will be able to find something.
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I am attempting to identify a correct Auto-Lite generator for my 1941 Plymouth Special Deluxe (P-12). As I do not have the old one (it's a long story), I researched the specs and determined that it should be an Auto-Lite GDZ-4801-B. I have been unable to find this model but have found several with the GDZ-4801-A part number and other letters. Does anyone have a reference explaining what the letter means at the end of the Auto-Lite part number? Or, even more specifically, the difference between the A and B versions of this generator and whether the A version can be used in this vehicle? I reviewed several Auto-Lite references posted on this forum but none seem to explain the foregoing. Thanks!
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Thanks for all of the help.
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I am restoring a 1941 Plymouth Special Deluxe (Model P-12 two-door coupe) and am working on the dash. In disassembling it, I removed the pictured part but cannot identify it in any of my part books or other literature. It came from underneath the dash to the left of the steering wheel. I am looking for its name and a source to replace/refurbish it. Thanks.
