Bosch AL3393X Alternator

Overview of Bosch AL3393X Alternator for Lexus GS430 and LS430

The Bosch AL3393X is a remanufactured alternator designed specifically for Lexus GS430 and LS430 models. Engineered to meet strict quality standards, this 12-volt alternator ensures reliable electrical charging and starting performance for your vehicle.

• Voltage: 12V system compatibility
• Amperage Rating: 130 amps for consistent power output
• Rotation Direction: Clockwise rotation
• Fan Type: Internal fan for efficient cooling
• Pulley Included: Yes, with 6 grooves for serpentine belt
• Outside Pulley Diameter: 56.4 mm
• Case Material and Color: Durable aluminum in aluminum finish
• Regulator Type: Internal voltage regulator
• Plug Clock Rear View Main Mounting Ear Position: 6 o'clock

Details on Bosch Alternator (Remanufactured) Product Line

The Bosch Alternator (Remanufactured) line offers high-quality remanufactured alternators that restore original equipment performance. Each unit undergoes rigorous testing and refurbishment to ensure durability and reliability. The AL3393X model benefits from this process, providing a cost-effective replacement option without compromising on function or fitment for Lexus GS430 and LS430 vehicles.

Technical Description and Features

This remanufactured alternator features a 12-volt electrical system with a 130-amp output, suitable for the electrical demands of Lexus GS430 and LS430 models. The internal fan design helps maintain optimal operating temperatures, while the clockwise rotation matches factory specifications. The included pulley has six grooves and a diameter of 56.4 mm, compatible with the vehicle’s serpentine belt system. The aluminum case offers lightweight durability and corrosion resistance. An internal voltage regulator ensures stable voltage output, protecting your vehicle’s electrical components.

Common Applications and Problem Resolution

• Replaces faulty or worn alternators in Lexus GS430 and LS430
• Resolves battery charging issues and electrical system failures
• Eliminates dimming headlights or electrical accessory malfunctions
• Addresses warning lights related to charging system faults
• Restores proper alternator pulley and belt alignment

Installation Notes and Tips

When installing the Bosch AL3393X alternator, ensure the mounting ear is positioned at 6 o’clock as per the plug clock rear view specification. Verify the serpentine belt matches the 6-groove pulley included with this unit. Proper torque specifications should be followed to avoid damage to the aluminum case. It is recommended to inspect the battery and electrical connections during installation to ensure optimal performance.

Quality Assurance and Warranty

As a remanufactured product from Bosch, the AL3393X alternator undergoes comprehensive testing to meet OEM standards. The use of high-quality materials such as the aluminum case and internal voltage regulator supports long-term reliability. Warranty coverage details should be confirmed at the point of purchase, reflecting Bosch’s commitment to quality and customer satisfaction.