Beefy 136 Amp 12V Alternator Replacement For Dodge Ram 2500 2003 2005 Pickup Heavy Duty S8 CW ER IF Compatible 13987N 56028732AA 88861857 90156434 13987 Direct Fit Ready To Install

Heavy-Duty 136A 12V Alternator Replacement for Ram Pickup
✔️ 136A @12V, S8 pulley, CW rotation, ER/IF; single unit

Direct-fit replacement alternator for 2003-2005 Ram 2500 and Ram 3500 with 5.9L engines; built to deliver robust, uninterrupted power for heavy-duty trucks.

✅ Amperage: 136A
✅ Voltage: 12V
✅ Pulley Class: S8
✅ Rotation: CW
✅ Design: ER/IF
✅ OE numbers: 13987N, 56028732AA, 90156434, 88861857

💡 What is a heavy-duty 12V alternator used for in pickup trucks?

This handy unit keeps the electrical system charged while you drive, even under heavy load.

- it provides reliable charging under heavy electrical draw
- it supports modern electronics and lighting systems
- it withstands extreme temperatures and rough road vibration