Farmall Cub wiring sys.

darock · Jan 11, 2009

Looking for a wiring diagram for a 1948 Farmall Cub with 12 volt sys. with a Alt.

Janicholson · Jan 11, 2009

These diagrams are the best there are. If you have questions just ask, we are here to do it right. If there is no cub in the mix. a Super A or other small will get you going well. JimN
Bob Ms Superlative Wiring diagrams

John M · Jan 11, 2009

What alt are you using?

darock · Jan 11, 2009

#5 may work. My alt. is only 1 wire so would I forget about the warning light wire??
And where would I hook up my lights

Rudi · Jan 11, 2009

This one is Bob's 10SI Conversion and pretty much applies to most 1 wire 12 volt conversions which use a 10SI equivalent on the Cub except for the Hitachi conversion. You can leave out the warning light as a Cub does not have one.

You would hook up your lights at the 3 or 4 position switch, which ever one you have by feeding from the ammeter as shown below.

12%20Volt%20GM%2010SI%20Conversion%20For%20A%20Super%20M.jpg

Janicholson · Jan 11, 2009

To the load side of the amp meter. Where the ignition is connected, and the same place the wire from the alternator is attached. JimN

Janicholson · Jan 11, 2009

Also if it has a mag, attach the light switch where the alt is attached. Do not connect the ignition components to anything but the grounded kill button/switch. JimN

darock · Jan 11, 2009

Thank's for the help

Farmall Cub wiring sys.

darock

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Janicholson

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John M

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darock

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Rudi

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Janicholson

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Janicholson

Well-known Member

darock

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