TYC 2-13889 Alternator

OE-Style Alternator for Subaru Charging Systems

TYC 2-13889 is a 90-amp alternator built for Subaru charging-system service where internal regulation and internal fan design are required. It matches the OE manufacturer specification for MB applications and uses a 5-groove pulley with clockwise rotation.

Compatible With 2003-2006 Subaru Forester, 2004-2006 Subaru Baja, 2005 Subaru Impreza, and 2005 Subaru Outback. This TYC 2-13889 alternator is a direct-fit electrical replacement for vehicles that need stable charging output and OE-style mounting and pulley configuration.

Key Features

• 90A power generation for standard vehicle electrical loads
• Internal voltage regulator for integrated charging control
• Internal fan position for OE-style cooling layout
• Regular pulley wheel design with 5 grooves
• Clockwise rotation direction
• OE manufacturer reference: MB

Detailed Description

TYC 2-13889 is an alternator replacement engineered around the original equipment configuration used on select Subaru models. The internal regulator and internal fan arrangement support a clean OE-style installation, while the 90-amp output helps maintain battery charge and system voltage under normal driving conditions. The 5-groove pulley and clockwise rotation match the specified accessory drive setup for the listed applications. This part cross-references Bosch AL4304X and DENSO 210-4140 for the same application.

Use this alternator when servicing Subaru Baja, Forester, Impreza, or Outback charging-system concerns and you need a replacement that aligns with the factory electrical layout. The TYC 2-13889 part number is also a useful reference when verifying interchange listings during diagnosis or parts lookup.

Common Issues This Part Can Address

• Battery warning light illuminated
• Low charging voltage at the battery
• Dim lights or electrical instability at idle
• Charging-system failure from a worn alternator
• Noise or irregular operation from a failing internal component

Installation Notes and Tips

Confirm pulley groove count, rotation direction, and regulator style before installation. Verify belt condition and inspect the charging circuit, battery, and connectors during replacement to avoid repeat failures. Always compare the vehicle’s original alternator specifications to TYC 2-13889 before installation on Subaru Baja, Forester, Impreza, or Outback applications.

Quality Assurance

TYC manufactures replacement electrical components to OE-style specifications for fit and function in the listed applications. Part number 2-13889 is built to match the required charging-system configuration for compatible Subaru vehicles.