Remy 12109 Alternator

Remanufactured Alternator for OE-Style Charging Repair

The Remy Premium Remanufactured 12109 alternator is a 12-volt charging component built for vehicles that need stable electrical output and dependable battery support. With an 85-amp rating, internal fan, internal voltage regulator, and included pulley, it is a direct-fit style replacement for common Delco/Delphi applications.

For drivers searching for an alternator for Delco/Delphi systems, Remy 12109 provides a remanufactured solution that matches the original equipment manufacturer design approach. It is a practical choice for charging system service on applications such as Chevrolet and GMC models that use this alternator configuration.

Key Features

• Remanufactured alternator from Remy Premium Remanufactured
• 85-amp amperage rating for standard charging output
• 12-volt electrical system application
• Internal voltage regulator for integrated control
• Internal fan design for alternator cooling
• Pulley included
• Clockwise rotation
• OE manufacturer reference: Delco/Delphi
• Part number 12109 for catalog and cross-reference lookup

Detailed Description

Remy 12109 is built as a remanufactured alternator for OE-style replacement in charging and starting systems. The internal regulator and internal fan support a compact, self-contained design, while the 85-amp output suits vehicles that need consistent charging performance without changing the original electrical layout. The included pulley and clockwise rotation help match the factory configuration on supported applications. This part cross-references 219139 and 96303550 for the same application.

Search terms such as Chevrolet alternator replacement, GMC charging system repair, and Delco/Delphi alternator 12109 are commonly used for this type of service part. The Remy Premium Remanufactured line focuses on remanufactured electrical components built around OE manufacturer specifications, making it a straightforward option when replacing a worn or failing alternator.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Slow battery recharge after driving
• Dim lights or unstable electrical performance
• Charging system noise related to alternator wear
• Starting issues tied to insufficient charging voltage

Installation Notes and Tips

Verify pulley style, rotation direction, voltage, and amperage rating before installation. Confirm that the vehicle uses an internal regulator and Delco/Delphi-style alternator configuration. Inspect the belt, wiring connections, and battery condition during replacement so the charging system can be tested as a complete circuit after installation.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to support OE-style replacement needs for electrical systems. Part number 12109 is specified with the listed electrical and mechanical attributes to help match the original alternator configuration on supported Chevrolet and GMC applications.