MPA Electrical 13820 Alternator

Remanufactured Alternator for Subaru Applications

MPA Electrical Part Number 13820 is a remanufactured 12-volt alternator built for Subaru charging system service. It delivers 70 amps and uses an internal regulator, internal fan, clockwise rotation, and a 5-groove serpentine pulley for the listed applications.

Compatible with 1999-2002 Subaru Forester, 1999-2000 Subaru Impreza, and 2000 Subaru Outback, this Mitsubishi-manufactured alternator is a direct-fit electrical replacement for common charging system repairs. Part number 13820 is also referenced in interchange listings for related OE and aftermarket applications.

Key Features

• 70 amp output for standard charging system replacement
• 12-volt alternator with internal voltage regulator
• Internal fan design
• 5-groove serpentine pulley
• Clockwise rotation
• Mitsubishi manufacturer specification
• Remanufactured by MPA Electrical

Detailed Product Overview

This remanufactured alternator is built around the listed electrical and pulley specifications to match Subaru charging system requirements. It is a practical replacement for drivers searching for a Subaru Forester alternator, Subaru Impreza alternator, or Subaru Outback alternator with the correct 70 amp, 12-volt configuration. The MPA Electrical 13820 alternator is intended for vehicles that use an internal regulator and a 5-groove serpentine belt drive.

This part cross-references BBB Industries 13820 for the same application.

Common Charging System Issues It May Solve

• Battery warning light caused by alternator output loss
• Low charging voltage during engine operation
• Dim lights or electrical instability from weak alternator performance
• Battery drain after the vehicle is running
• No-charge condition related to alternator failure

Installation Notes and Tips

Verify pulley groove count, rotation, regulator type, and connector match before installation. Confirm the vehicle uses the listed Subaru application and compare the original unit to MPA Electrical 13820 for fitment details. After installation, check charging voltage at the battery and inspect belt condition and tension to help confirm proper system operation.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to meet the listed application specifications for electrical replacement service. This alternator is remanufactured and identified by part number 13820 for accurate ordering and fitment verification.