MPA Electrical 13939N Alternator

Reliable Alternator for Nissan Altima and Sentra

The MPA Electrical New 13939N alternator is designed to provide consistent 12-volt electrical output for Nissan Altima and Sentra models. Engineered with quality components, this alternator supports your vehicle's charging system with a 110-amp capacity and internal regulation.

• 110 amps output for stable electrical performance
• Internal fan for efficient cooling
• 6 groove serpentine decoupling pulley for smooth operation
• Internal voltage regulator for precise voltage control
• Clockwise rotation compatible with Nissan charging systems
• 12 volts electrical system compatibility
• Manufactured by Hitachi for reliable component quality

Detailed Features and Specifications

This MPA Electrical New alternator, part number 13939N, is built with an internal fan that helps maintain optimal operating temperatures during vehicle use. The 6 groove serpentine decoupling pulley reduces belt wear and improves overall drivetrain efficiency. Featuring an internal voltage regulator, this alternator ensures consistent voltage output to protect your Nissan Altima or Sentra's electrical components. The clockwise rotation matches the original equipment specifications, making it a direct replacement alternator for these models. Manufactured by Hitachi, the alternator meets industry standards for durability and performance.

About the MPA Electrical New Product Line

The New product line from MPA Electrical focuses on delivering updated and reliable electrical components designed to meet or exceed OEM specifications. This alternator is part of that line, offering modern features such as internal regulation and decoupling pulley technology to enhance vehicle charging system efficiency and longevity.

Common Applications and Problem Solving

• Replaces failing or underperforming alternators in Nissan Altima and Sentra
• Resolves battery charging issues and electrical system malfunctions
• Eliminates dimming headlights or electrical accessory failures
• Addresses belt slippage or noise related to pulley wear
• Prevents voltage irregularities that can damage vehicle electronics

Installation Notes and Tips

Ensure the vehicle battery is disconnected before beginning installation to avoid electrical shorts. Verify the clockwise rotation and 6 groove serpentine pulley match your vehicle’s original alternator. Proper belt tension is critical to prevent premature wear. It is recommended to inspect the serpentine belt and related components during installation for optimal performance.

Quality Assurance and Warranty

The MPA Electrical New 13939N alternator is manufactured by Hitachi, a recognized name in automotive electrical components. This part undergoes rigorous quality control to meet industry standards. Warranty details should be confirmed with the distributor or retailer, as coverage may vary.