Before you order: GM part numbers change by option code and year. Confirm against your VIN with a GM dealer. Callout numbers on this page are our own and do not match GM's diagram numbers. Quantities are per vehicle (both sides).
Engine: each engine uses a different alternator. The 3.6L has two versions by pulley type (decoupler spring pulley or solid pulley). The drawing is a generic alternator, simplified and not to scale.
Engine: each engine uses a different alternator. The 3.6L has two versions by pulley type (decoupler spring pulley or solid pulley). The drawing is a generic alternator, simplified and not to scale.
| # | Part | GM OEM # | Fitment & notes | Buy |
|---|---|---|---|---|
| 1 | Generator (alternator) - 2.4L | 19432303 current 13512759 superseded | 2.4L 4-cylinder, 2010-2017. GM replaces 13512759 with 19432303. Mating connector 13585849 per GM. | Check price on Amazon |
| 1 | Generator (alternator) - 3.0L V6 | 13520825 2010, 150 A 23285091 2011-2012 | 3.0L V6 only. | Check price on Amazon |
| 1 | Generator (alternator) - 3.6L V6 | 22988006 with spring (decoupler) pulley 23119515 with solid steel pulley | 3.6L V6, 2013-2017. Match the pulley type on your car. | Check price on Amazon |
| 2 | Cover, generator wire terminal | 2966377 | 2.4L. Part of the generator wiring harness (3). | Check price on Amazon |
| 3 | Harness, generator wiring | 22821447 | 2.4L and 3.0L V6. | Check price on Amazon |
| 4 | Harness, engine wiring harness extension | 23349669 | 3.6L V6, 2013-2017. | Check price on Amazon |
| 5 | Stud, generator (M8x1.25x16) | 11561936 | 2.4L, 2012-2017. | Check price on Amazon |
| 6 | Stud, generator (M10x1.5) | 11611814 | 3.0L and 3.6L V6, 2011-2017. | Check price on Amazon |
| 7 | Bolt, generator (M8x1.25x105) | 11589253 | 2.4L, 2015-2017 diagrams. Qty 2. | Check price on Amazon |
| 8 | Bolt, generator | 11588748 | 3.0L / 3.6L V6. Shown only on the 2010 GM diagram. Qty 2. | Check price on Amazon |
| 9 | Nut, generator (M10x1.5, flanged) | 11514597 | All engines. | Check price on Amazon |
| 10 | Nut, battery positive cable (M8x1.25, brass) | 21021808 | All engines. | Check price on Amazon |
| 11 | Pulley, drive belt idler (not illustrated) | 12610680 | 3.0L and 3.6L V6. Also shown on the generator diagram; drawn on the Drive Belt page. | Check price on Amazon |
The illustration is an original drawing made for this site. It is not to scale and the shapes are representative.