Remy 12686 Alternator

Remanufactured Alternator for Hummer H3

This Remy Premium Remanufactured alternator is built for 12-volt charging systems and delivers 130 amps for the 2006 Hummer H3. It includes an internal fan, internal voltage regulator, and pulley for a direct replacement focused on OE-style fit and function.

Key Features

• 130 amp amperage rating for steady charging output
• 12V alternator with internal voltage regulator
• Internal fan design for charging system cooling
• Clockwise rotation
• Pulley included
• Remanufactured to Premium Remanufactured standards
• OE manufacturer reference: Valeo

Product Details

Remy part number 12686 is a remanufactured alternator for the 2006 Hummer H3. It is engineered around the original Valeo application and is intended for drivers replacing a worn charging unit with a unit that matches the vehicle’s electrical requirements. This alternator cross-references 15104219A and TG13S013 for the same application.

Common Issues This Part Can Address

• Battery warning light caused by low alternator output
• Weak charging performance during normal driving
• Electrical system voltage drop under load
• Charging noise related to alternator wear
• Failure of the original alternator’s internal regulator or bearings

Installation Notes

Compatible With 2006 Hummer H3, N/A. Verify pulley alignment, connector style, and mounting points before installation. Confirm the vehicle’s charging system condition, battery health, and belt condition during replacement to avoid repeat failures. Part number 12686 should be matched to the original unit and vehicle-specific fitment before purchase.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to restore core functionality for charging-system replacement applications. This alternator is specified with OE manufacturer reference Valeo and is built for the listed Hummer H3 application.