Bosch AL9357X Alternator

Reliable Bosch Remanufactured Alternator for BMW Vehicles

The Bosch AL9357X Alternator (Remanufactured) is designed to provide dependable electrical charging and starting performance for select BMW models. Engineered to meet OEM specifications, this 12-volt alternator ensures consistent power delivery and efficient operation for your BMW 545i, 550i, 645Ci, 650i, 745i, 745Li, 750i, 750Li, and X5 vehicles.

Key Features of Bosch AL9357X Alternator

• Voltage: 12 volts for standard automotive electrical systems
• Rotation Direction: Clockwise for proper fitment and function
• Fan Type: Internal with external fan included for optimal cooling
• Pulley: 6-groove pulley included with 49mm outside diameter
• Regulator: Internal regulator included for stable voltage output
• Amperage Rating: 180 amps to support high electrical loads
• Case Material and Color: Durable aluminum case in aluminum finish
• Plug Type: 430 with rear view main mounting ear positioned at 6 o'clock
• Compatible with one unit per vehicle installation

About the Bosch Alternator (Remanufactured) Product Line

The Bosch Alternator (Remanufactured) line offers remanufactured alternators that meet strict quality standards to restore vehicle charging systems to original equipment performance. Each unit, including the AL9357X, is rebuilt using high-quality components and tested to ensure reliability and durability. This product line is ideal for BMW owners seeking a cost-effective replacement without compromising on functionality.

Detailed Product Description

The Bosch AL9357X alternator is a remanufactured unit designed specifically for BMW models such as the 545i, 550i, 645Ci, 650i, 745i, 745Li, 750i, 750Li, and X5. It features a 12-volt electrical system with a 180-amp output, suitable for vehicles with high electrical demands. The internal fan combined with an external fan ensures efficient cooling during operation, while the clockwise rotation matches the original equipment specifications. The included 6-groove pulley with a 49mm diameter supports proper belt alignment and tension. An internal voltage regulator maintains consistent power delivery, and the aluminum case provides durability and heat dissipation. The plug type 430 and mounting ear at 6 o'clock facilitate straightforward installation and secure fitment.

Common Issues Addressed by This Alternator

• Battery not charging or frequent battery drain
• Dim or flickering headlights and electrical accessories
• Warning lights related to charging system on the dashboard
• Unusual noises from the alternator pulley or fan
• Intermittent electrical failures or vehicle stalling

Installation Notes and Tips

• Ensure vehicle battery is disconnected before installation to prevent electrical shorts
• Verify clockwise rotation and pulley specifications match your BMW model
• Check belt condition and tension during alternator replacement
• Confirm plug type 430 and mounting ear position for proper connection
• Use appropriate tools to avoid damage to the aluminum case and mounting points

Quality Assurance and Warranty

This Bosch AL9357X remanufactured alternator undergoes rigorous testing to meet OEM standards for performance and durability. It includes an internal voltage regulator and is packaged securely in a box to prevent damage during transport. While specific warranty details may vary, Bosch remanufactured alternators typically come with a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.