Bosch AL4009X Alternator

Bosch AL4009X Remanufactured Alternator

The Bosch AL4009X is a remanufactured 12-volt alternator built for charging-system performance and dependable electrical output. It is a direct-fit option for select Hyundai Sonata, Dodge Stealth, and Mitsubishi 3000GT applications that require a 110 amp alternator.

Key Features

• Remanufactured Bosch alternator for charging system replacement
• 12-volt, 110 amp amperage rating
• Internal fan and internal regulator design
• Clockwise rotation
• Includes pulley and external fan
• 6-groove pulley with 65 mm outside diameter
• Aluminum case and aluminum case material
• Plug type 300 with rear-view plug clock position at 9 o’clock

Product Details

Bosch Premium Alternators are remanufactured, built, and tested to support reliable charging performance in everyday driving conditions. The AL4009X uses an internal fan, internal regulator, and clockwise rotation, with a 6S pulley setup and 6-groove belt interface. This Bosch AL4009X alternator is a fitment-based replacement for 1995-1998 Hyundai Sonata, 1991-1995 Dodge Stealth, and 1991-1995 Mitsubishi 3000GT applications listed for the 110 amp charging system.

This part cross-references Mitsubishi OE numbers M150657D and MD150657 for the same application.

Common Charging Issues It May Resolve

• Battery warning light caused by weak alternator output
• Low charging voltage at idle or under electrical load
• Dim headlights or unstable accessory performance
• Battery drain related to insufficient charging system output
• Noise or wear associated with a failing alternator assembly

Installation Notes and Tips

• Verify the vehicle uses a 110 amp alternator before ordering.
• Confirm plug type 300 and rear plug clock position at 9 o’clock match the original unit.
• Check pulley groove count, pulley diameter, and belt alignment before installation.
• Inspect battery condition, belt wear, and charging cables during replacement.
• After installation, test charging voltage to confirm proper system operation.

Quality Assurance

Built under Bosch remanufacturing standards and tested for performance and reliability, the AL4009X is intended to meet the demands of select Hyundai Sonata, Dodge Stealth, and Mitsubishi 3000GT charging systems.