What type of alternator is this on my 40 Ford.

[Bazooka Joe]

I’m wanting to replace my alternator, doesn’t seem to be charging battery, less than 13 volts at idle. Did not check at 2000 RPM. I think it’s a 10 Si but have numbers that possibly say 6ML.

What would be a replacement if I went to a auto store, as I want to keep the same type/style.

Car Idling with headlight on reading 12.04 volts at battery.

Battery brand new, replaced a 8 year old battery.

Alternator is a Delco-Remy.

How many wires is this alternator, is it considered a one wire or two, as there are two wires going to the side of the Alternator, though one wire goes to Batt. on the Alternator.

Are there rebuilt kits for this Alternator, is there a particular year run for this Alternator.


Engine is a Chevy 350 car is 12 volt negative ground.

What is this black box, one wire goes into the car, haven’t really traced the wirings yet, does this connect to the Alternator?

It looks like at least the dash gauges are 6 volt as I can see voltage reducers under the dash. Is this black box part of the voltage reducers to run dash gauges?

Thank You