MPA Electrical 13821 Alternator

Remanufactured Alternator for Nissan Quest and Mercury Villager

MPA Electrical Part Number 13821 is a remanufactured 12-volt alternator built for charging-system replacement on select Nissan Quest and Mercury Villager applications. It is specified at 125 amps and uses an internal regulator, internal fan, clockwise rotation, and a 5-groove serpentine pulley for the listed vehicle fitments.

Key Features

• 125 amp output for 12-volt charging systems
• Remanufactured alternator from MPA Electrical
• Internal regulator and internal fan design
• 5-groove serpentine pulley configuration
• Clockwise rotation with 5:00 clock position
• Manufacturer listed as Mitsubishi

Product Details

This MPA Electrical remanufactured alternator, part number 13821, is built for direct replacement in 1999-2002 Mercury Villager and 1999-2002 Nissan Quest models. The unit’s 125 amp rating supports the vehicle’s electrical demand, while the internal regulator helps maintain charging output within the system’s operating range. The Mitsubishi-built design, serpentine pulley layout, and clockwise rotation match the listed OE-style application requirements for these minivan platforms. This part cross-references BBB Industries 13821 for the same application.

Common Charging System Issues It May Solve

• Battery warning light caused by alternator output loss
• Low charging voltage at idle or under electrical load
• Dim lights or unstable electrical performance
• Battery discharge after driving
• Noise or charging failure from a worn alternator assembly

Installation Notes and Tips

Verify pulley groove count, rotation direction, connector style, and mounting alignment before installation. Inspect the drive belt, belt tension, battery condition, and charging cables during replacement to help prevent repeat charging-system faults. Confirm fitment by year, make, and model for 1999-2002 Nissan Quest and 1999-2002 Mercury Villager applications before installation.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to restore charging-system function for the listed applications. Part number 13821 is intended for direct replacement use on the specified Nissan Quest and Mercury Villager fitments.