Bosch AL3399X Alternator

Reliable Alternator Replacement for Lexus and Toyota Vehicles

The Bosch AL3399X alternator is a remanufactured electrical component designed to restore charging system performance in select Lexus and Toyota models. Engineered to meet OEM specifications, this 12-volt alternator ensures consistent power delivery for your vehicle's electrical needs.

• 12-volt electrical system compatibility
• Internal fan type with clockwise rotation
• Includes a 7-groove pulley with a 53.6 mm outside diameter
• Internal voltage regulator for stable output
• Aluminum case construction for durability and heat dissipation
• 100 amp amperage rating suitable for standard charging demands
• Plug type 917 with 4-pin rear mounting ear at 6 o'clock position
• Compatible with Lexus RX350 and Toyota Camry, Highlander, and RAV4 models

About the Bosch Alternator (Remanufactured) Product Line

The Bosch Alternator (Remanufactured) line offers high-quality remanufactured alternators that meet strict performance and durability standards. Each unit undergoes comprehensive testing and refurbishment to ensure reliable operation comparable to new parts. The AL3399X is part of this line, providing a cost-effective solution without compromising on quality or fitment for your Lexus or Toyota vehicle.

Detailed Product Description

This Bosch AL3399X alternator features an internal fan design that promotes efficient cooling while maintaining a compact form factor. The clockwise rotation and 7-groove pulley system are engineered to match the original equipment specifications, ensuring proper belt alignment and tension. The internal voltage regulator maintains consistent amperage output rated at 100 amps, supporting your vehicle's electrical components effectively. Constructed with an aluminum case, this alternator offers enhanced heat dissipation and corrosion resistance, contributing to longer service life. The included pulley and specific plug type (917) with a 4-pin rear mounting ear at 6 o'clock facilitate straightforward installation and secure fitment.

Common Applications and Issues Addressed

• Restores charging system functionality in Lexus RX350 and Toyota Camry, Highlander, and RAV4
• Resolves battery drain caused by faulty alternator output
• Eliminates dimming or flickering headlights due to inconsistent voltage
• Prevents electrical system failures related to worn or damaged alternators
• Addresses warning lights on the dashboard related to charging system faults

Installation Notes and Tips

• Verify vehicle compatibility with Lexus RX350 or Toyota Camry, Highlander, and RAV4 models before installation
• Ensure the alternator pulley groove count and diameter match the existing belt system
• Check electrical connections for the 4-pin plug type 917 to ensure secure fitment
• Follow manufacturer torque specifications for mounting bolts, especially the rear view main mounting ear at 6 o'clock
• Inspect belt condition and tension after installation to prevent premature wear

Quality Assurance and Warranty

Each Bosch AL3399X alternator undergoes rigorous remanufacturing processes including testing for electrical output, mechanical integrity, and durability. The aluminum case and internal regulator are inspected to meet Bosch quality standards. While specific warranty details are not provided here, Bosch remanufactured alternators typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.