WAI 13815N Alternator

Reliable Alternator for BMW and Land Rover Vehicles

The WAI 13815N alternator is designed to provide consistent electrical charging performance for select BMW and Land Rover models. Engineered with a liquid-cooled fan and internal regulator, this alternator supports the demanding electrical systems of vehicles like the BMW 540i and Range Rover.

• 12-volt electrical system compatibility
• Liquid cooled fan type for efficient heat dissipation
• Clockwise (right) rotation direction
• Includes a 7-groove serpentine pulley
• Internal voltage regulator for stable output
• 150 amp amperage rating suitable for high electrical loads
• Compatible with BMW 540i, 740i, 740iL, 750iL, Land Rover Range Rover, and BMW X5

Technical Details and Features

The WAI 13815N alternator belongs to the Bosch family of components, known for their durability and precision engineering. This alternator features a liquid-cooled fan that helps maintain optimal operating temperatures, reducing the risk of overheating during extended use. Its clockwise rotation and serpentine belt pulley with seven grooves ensure proper fitment and reliable power transfer in vehicles such as the BMW 740iL and Land Rover Range Rover. The internal regulator maintains consistent voltage output, protecting your vehicle's electrical system from fluctuations. With a 150 amp rating, this alternator supports the electrical demands of modern luxury vehicles equipped with advanced electronics.

Applications and Common Issues Addressed

• Replacement for failing or underperforming alternators in BMW 540i and 740i models
• Restores charging system functionality in Land Rover Range Rover and X5 vehicles
• Solves issues related to battery drain and electrical component malfunctions
• Addresses overheating problems with liquid-cooled fan design
• Eliminates voltage irregularities with internal regulator technology

Installation Notes and Tips

When installing the WAI 13815N alternator, ensure the serpentine belt is properly aligned with the 7-groove pulley to avoid premature wear. Verify the clockwise rotation direction matches your vehicle’s specifications. It is recommended to inspect the battery and electrical connections during installation to ensure optimal performance. This alternator is designed for direct replacement in compatible BMW and Land Rover models, simplifying the installation process.

Quality Assurance and Warranty

WAI alternators are manufactured to meet stringent quality standards, providing reliable performance for your vehicle’s charging system. The 13815N alternator is built with durable components and tested for consistent amperage output. Please refer to the product documentation or contact the manufacturer for specific warranty details related to this part.