Alternator - Models W/Integral Regulator: Description

There are 2 types of alternators used on these vehicles. The 12SI and 17SI series (Systems Integral), means alternator with built-in regulator. All 12SI alternators have "Y" stator windings, while all 17SI have delta windings.

The CS130 (Charging System) alternators have a high amperage output. This alternator does not have a diode trio.

Fig 1: Alternator Terminal Identification & Locations "S" terminal is optional on CS130.