As told on a Massey Ferguson 65. Applys to all internally regulated AC Delco-Alternators.
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AC Delco 334-2268 Remanufactured Alternator: AC-Delco 334-2268 GEN REM( 
GET IT NOW! DELCO ALTERNATOR REPLACEMENT 34SI STYLE 12VOLT/135AMP: THIS IS A NEW HEAVY DUTY AFTERMARKET BUILT D... 
AC Delco 334-1438 Remanufactured Alternator: AC-Delco 334-1438 GEN REM( 
NEW MARINE HIGH OUTPUT ALTERNATOR 220 AMP DELCO MANDO: Marine Engine Component in Johnson City, TN NEW MARINE HI... 
NEW MARINE HIGH OUTPUT ALTERNATOR 220 AMP DELCO MANDO: Marine Engine Component in Johnson City, TN NEW MARINE HI... 
I diagnosed this Allis-Chalmers crawler's DC generator defunct, and converted it to a Delco Alternator.