MPA Electrical 11889 Alternator

Remanufactured Alternator for Toyota Applications

The MPA Electrical 11889 is a remanufactured 12-volt alternator built for select Toyota Highlander and Toyota Sienna applications. It delivers 180 amps with an internal regulator, internal fan, and a 6-groove serpentine decoupling pulley for OE-style charging system service.

Built under the MPA Electrical Remanufactured product line, this alternator is intended for buyers who need a direct-fit charging component with the correct Nippondenso-style configuration, clockwise rotation, and 4:00 clock position. The 11889 part number is also referenced for OE-style replacement needs on these Toyota platforms.

Key Features

• 180 amp output for charging system replacement
• 12-volt remanufactured alternator
• Internal regulator and internal fan
• 6-groove serpentine decoupling pulley
• Clockwise rotation with 4:00 clock position
• Manufacturer style: Nippondenso
• Cross-reference part numbers include 27060-0P420 and 104211-0970

Detailed Description

MPA Electrical part number 11889 is a remanufactured alternator engineered for Toyota Highlander and Toyota Sienna charging system service. It matches the listed OE-style configuration with 180 amps, 12 volts, internal regulation, and a serpentine decoupling pulley, making it a practical replacement when the original alternator no longer maintains proper system voltage. This alternator is compatible with 2017-2022 Toyota Highlander and 2017-2020 Toyota Sienna applications.

This part cross-references 27060-0P420 and 104211-0970 for the same application.

What It Helps Solve

• Low battery charging caused by alternator wear
• Battery warning light or charging system warning messages
• Dim lights or electrical instability at idle
• Noise or pulley-related charging system issues
• Failure to maintain proper voltage output in Toyota Highlander or Toyota Sienna models

Installation Notes and Tips

Verify pulley style, connector layout, clock position, and rotation before installation. Confirm the vehicle uses the listed Nippondenso-style alternator configuration and compare the original unit to part number 11889 before removal. After installation, check charging voltage and inspect belt condition, belt alignment, and battery state of charge.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to restore charging-system function for service replacement use. This alternator is specified with the correct amperage, regulator type, pulley design, and rotation for the listed Toyota Highlander and Toyota Sienna applications.