Remy 12040 Alternator

Remanufactured Alternator for Hyundai and Kia

Remy Premium Remanufactured Part Number 12040 is a 12-volt alternator built for charging-system replacement on select Hyundai Sonata, Kia Magentis, and Kia Optima applications. It uses an internal voltage regulator, internal fan design, clockwise rotation, and includes the pulley for a direct-fit service replacement.

Remy’s Premium Remanufactured line focuses on OE-style replacement parts rebuilt to match original equipment specifications. This alternator is remanufactured from an OE Mando unit and is specified at 95 amps for vehicles that require stable charging output in everyday driving.

Key Features

• Remy Premium Remanufactured alternator, Part Number 12040
• 95 amp output for 12-volt charging systems
• Internal voltage regulator
• Internal fan design
• Pulley included
• Clockwise rotation
• OE manufacturer: Mando

Detailed Description

This alternator is a remanufactured electrical charging component for Hyundai Sonata and Kia Magentis / Kia Optima applications. It is built to OE-style specifications for vehicles using a Mando alternator design, making it a direct replacement choice for charging-system service on 1999-2003 Hyundai Sonata, 2001-2003 Kia Magentis, and 2001-2003 Kia Optima models. Part number 12040 is also cross-referenced with 37300-38310 and 37300-38710 for the same application.

What It Helps Address

• Battery warning light caused by alternator output loss
• Low charging voltage during driving
• Dim lights or electrical instability from weak charging performance
• Charging-system failure after alternator wear
• Replacement needs for a Mando-style OE alternator

Installation Notes and Tips

• Verify the vehicle uses a Mando unit before ordering.
• Confirm pulley style, rotation direction, and electrical connections against the original alternator.
• Inspect the battery, belt condition, and charging cables during installation.
• After installation, test system voltage and charging output to confirm proper operation.

Quality Assurance

Remy Premium Remanufactured parts are rebuilt as OE-style service replacements for charging-system repair. Part Number 12040 is remanufactured from an OE Mando unit and specified for 95-amp output in supported Hyundai and Kia applications.