WAI 13953N Alternator

Reliable Alternator for Mercedes-Benz Vehicles

The WAI 13953N alternator is designed to provide consistent electrical charging and starting performance for select Mercedes-Benz models. Engineered with an internal fan and regulator, this alternator supports the demanding electrical systems of vehicles like the E55 AMG and S500.

• 12-volt electrical system compatibility
• Internal fan type for efficient cooling
• Clockwise (right) rotation direction
• Includes a 6-groove serpentine pulley
• Internal voltage regulator for stable output
• 150 amp amperage rating to meet high power demands
• Compatible with Bosch family components

Technical Details and Features

The WAI 13953N alternator features an internal fan that ensures optimal cooling during operation, reducing the risk of overheating in high-load conditions. Its clockwise rotation matches the original equipment specifications for Mercedes-Benz models such as the CL500, CLK430, and G55 AMG. The included pulley has six grooves designed for serpentine belts, providing reliable belt engagement and power transfer. With an internal voltage regulator, this alternator maintains consistent voltage output, protecting your vehicle’s electrical system. Rated at 150 amps, it supports the electrical demands of luxury and performance vehicles including the SL500 and SLR McLaren.

Compatible Mercedes-Benz Models

This alternator is compatible with a range of Mercedes-Benz vehicles, including:

• CL500
• CLK430
• CLS500
• E55 AMG, E320, E430, E500
• G55 AMG, G500
• S350, S430, S500
• SL500
• SLR McLaren

Common Issues Addressed by the WAI 13953N Alternator

• Battery not charging properly or draining quickly
• Dim or flickering dashboard and headlights
• Electrical system warning lights illuminated
• Unusual noises from the alternator pulley or belt area
• Vehicle stalling or difficulty starting due to electrical failure

Installation Notes and Tips

When installing the WAI 13953N alternator, ensure the serpentine belt is properly aligned with the 6-groove pulley to prevent premature wear. Verify the clockwise rotation direction matches your vehicle’s original alternator. It is recommended to inspect the battery and electrical connections during installation to ensure optimal performance. Professional installation is advised for accurate fitment and electrical system integration.

Quality Assurance and Warranty

WAI alternators are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. This alternator is part of the Bosch family, known for quality electrical components. While specific warranty details are not provided here, WAI products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.