Bosch AL0851N Alternator

Reliable Alternator Replacement for Mercedes-Benz E320

The Bosch AL0851N alternator is designed to provide consistent electrical charging performance for your Mercedes-Benz E320. This new alternator ensures your vehicle's electrical system operates efficiently with a robust 200-amp output and a durable aluminum case.

• Voltage: 14V for stable electrical supply
• Amperage Rating: 200 amps to support high electrical demand
• Rotation Direction: Clockwise (right) for proper fitment
• Mounting Type: Foot-mounted with short configuration
• Internal fan and regulator for efficient cooling and voltage control
• Includes pulley with 6 grooves and decoupled clutch design
• Negative ground type compatible with standard automotive systems
• Silver aluminum case for lightweight durability
• Brushless design not included; uses brushes for operation

About Bosch Alternator (New) Product Line

The Bosch Alternator (New) product line focuses on delivering brand-new, high-quality alternators engineered to meet or exceed OEM specifications. This line emphasizes reliable electrical performance and durability, making it suitable for demanding automotive applications such as the Mercedes-Benz E320. The AL0851N model exemplifies this with its integrated internal regulator and fan, as well as a decoupled clutch pulley to reduce belt wear and noise.

Detailed Product Description

The Bosch AL0851N alternator features a 14-volt output and a 200-amp amperage rating, providing ample power for the electrical systems of the Mercedes-Benz E320. Its internal fan type ensures effective cooling during operation, while the internal regulator maintains consistent voltage levels. The alternator is foot-mounted with a short mounting configuration and includes a pulley with six grooves and a decoupled clutch design to improve belt life and reduce vibration. The clockwise rotation direction and negative ground type align with the vehicle’s factory specifications. Constructed with a silver aluminum case, this alternator balances strength and weight, weighing approximately 17.7 pounds. The product length is 7.56 inches, making it a direct replacement for the original equipment.

Common Issues Addressed by This Alternator

• Failure to charge the battery properly
• Electrical system malfunctions or dimming lights
• Unusual noises from the alternator pulley or belt area
• Battery warning light illumination on the dashboard
• Intermittent power loss or vehicle stalling due to electrical faults

Installation Notes and Tips

When installing the Bosch AL0851N alternator on a Mercedes-Benz E320, ensure the mounting configuration matches the short foot-mounted design. Verify the clockwise rotation direction and confirm the negative ground system compatibility. The included pulley with six grooves and decoupled clutch should be aligned properly with the serpentine belt. Since this alternator includes an internal regulator and fan, no external components are necessary for voltage regulation or cooling. It is recommended to inspect the belt and electrical connections during installation for optimal performance.

Quality Assurance and Warranty

Bosch alternators are manufactured to meet strict quality standards, ensuring reliable performance and durability. The AL0851N alternator is a new unit, not remanufactured, providing confidence in its longevity. While specific warranty details are not provided here, Bosch typically offers coverage against defects in materials and workmanship. For exact warranty terms, please refer to Bosch’s official documentation or authorized service providers.