Bosch AL0900N Alternator

Reliable Alternator Replacement for Mercedes-Benz Models

The Bosch AL0900N Alternator (New) is designed to provide consistent 12-volt electrical power for your Mercedes-Benz B250, CLA250, and GLA250. Engineered with durable aluminum casing and an internal regulator, this alternator ensures efficient charging and reliable vehicle operation.

• 12-volt electrical system compatibility
• Internal fan type for optimized cooling
• Clockwise rotation direction
• Includes a 5-groove pulley with 52mm outside diameter
• Aluminum case material for lightweight durability
• Internal voltage regulator for stable output
• 150-amp amperage rating suitable for demanding electrical loads
• Plug clock rear view main mounting ear positioned at 6 o'clock
• Designed for 5s-cp belt type pulley system

About the Bosch Alternator (New) Product Line

The Bosch Alternator (New) product line focuses on delivering brand-new alternators built to meet original equipment manufacturer specifications. This ensures that the AL0900N alternator maintains the performance and reliability expected from Bosch, a recognized name in automotive electrical components. The new alternator design includes an internal regulator and fan, contributing to efficient operation and longevity.

Detailed Product Description

The AL0900N alternator features a robust aluminum case that balances strength and weight, helping to reduce overall vehicle load. Its internal fan design aids in maintaining optimal operating temperatures, while the internal voltage regulator ensures consistent electrical output to support your vehicle's battery and electrical systems. The clockwise rotation and 5-groove pulley system are engineered to match the belt configuration of compatible Mercedes-Benz models, including the B250, CLA250, and GLA250. With a 150-amp rating, this alternator can handle the electrical demands of modern vehicle accessories and systems.

Common Applications and Issues Addressed

• Restores charging system functionality in Mercedes-Benz B250, CLA250, and GLA250
• 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
• Supports stable operation of vehicle electronics and accessories

Installation Notes and Tips

When installing the Bosch AL0900N alternator, ensure the pulley alignment matches the existing belt system, specifically the 5-groove (5s-cp) belt type. Verify the plug clock rear view main mounting ear is positioned at 6 o'clock for proper fitment. It is recommended to inspect the belt and tensioner for wear during installation to maintain optimal performance. Always disconnect the battery before beginning installation to avoid electrical hazards.

Quality Assurance and Warranty

This Bosch alternator is a new, original equipment quality part designed to meet or exceed OEM standards. Manufactured with high-grade aluminum casing and internal components, it offers durability and reliable performance. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.