Bosch AL0789N Alternator

Reliable Bosch Alternator for Select Mercedes-Benz Models

The Bosch AL0789N alternator is designed to provide consistent electrical charging performance for a range of Mercedes-Benz vehicles. Engineered with a 14-volt output and a 150-amp rating, this new alternator supports the demanding electrical systems of models like the E55 AMG and SL500.

• Voltage: 14 volts for stable electrical output
• Amperage Rating: 150 amps to meet high power demands
• Internal fan type for efficient cooling
• Clockwise rotation direction
• Includes a 6-groove pulley with a 50mm outside diameter
• Internal voltage regulator for consistent performance
• Durable aluminum case and mounting ear at 6 o'clock position
• Compatible with multiple Mercedes-Benz models including CL500, G55 AMG, and S430

About the Bosch Alternator (New) Product Line

The Bosch Alternator (New) product line focuses on delivering brand-new, OEM-quality alternators designed to meet or exceed original equipment specifications. The AL0789N is part of this line, ensuring reliable electrical charging and durability through quality materials such as an aluminum case and internal regulator. This line is tailored for professional replacement needs in premium vehicles like Mercedes-Benz.

Detailed Product Description

The Bosch AL0789N alternator features a robust aluminum case that provides both lightweight construction and heat dissipation. Its internal fan design helps maintain optimal operating temperatures, while the internal voltage regulator ensures stable voltage output to protect your vehicle’s electrical components. The included 6-groove pulley with a 50mm diameter is designed for compatibility with serpentine belt systems found in Mercedes-Benz models such as the CLS500 and E430. The alternator’s clockwise rotation and rear view main mounting ear at 6 o’clock facilitate straightforward installation and alignment.

Common Applications and Issues Addressed

• Replacement for failing or underperforming alternators in Mercedes-Benz CL500 and S500
• Resolves battery charging problems and electrical system malfunctions
• Addresses dimming headlights and inconsistent power delivery
• Eliminates warning lights related to charging system faults
• Restores proper function to vehicles with high electrical load demands like the G55 AMG

Installation Notes and Tips

Ensure the vehicle’s battery is disconnected before beginning installation. Verify the pulley groove count and diameter match the existing setup to avoid belt misalignment. The rear view main mounting ear at 6 o’clock should align with the vehicle’s mounting bracket for secure fitment. Confirm the alternator’s clockwise rotation matches the original part to maintain proper operation.

Quality Assurance and Warranty

This Bosch AL0789N alternator is a new, OEM-quality replacement part manufactured with durable aluminum housing and internal components designed for longevity. Bosch alternators typically come with a limited warranty covering defects in materials and workmanship. Please refer to the specific warranty terms provided at purchase for coverage details.