Remy 12591 Alternator

Remanufactured Alternator for Toyota and Lexus

This Remy Premium Remanufactured alternator, part number 12591, is a 12-volt charging system component built for select Toyota Highlander, Toyota Sienna, and Lexus RX330 applications. It delivers 130 amps with an internal voltage regulator and internal fan for OE-style electrical output.

Remy Premium Remanufactured focuses on remanufactured electrical components built to match original equipment specifications. This alternator uses a Nippondenso OE manufacturer design, includes the pulley, and rotates clockwise for the listed vehicle applications.

Key Features

• 130 amp alternator output for charging system performance
• 12-volt electrical system application
• Internal voltage regulator
• Internal fan design
• Pulley included
• Clockwise rotation
• Remanufactured to OE manufacturer specifications
• OE manufacturer reference: Nippondenso

Detailed Product Information

Part number 12591 is a remanufactured alternator for 2004-2007 Toyota Highlander, 2004-2006 Lexus RX330, and 2004-2006 Toyota Sienna applications. It is built around the Nippondenso OE design and is specified for vehicles that use a 130 amp charging system with an internal regulator. This makes it a direct replacement choice for drivers servicing the factory charging system on these Toyota and Lexus models.

This part cross-references 27060-0A100 and 104210-3650 for the same application.

Common Uses

• Restoring battery charging output after alternator wear
• Replacing a unit with low or unstable voltage output
• Addressing charging warning lights on the dash
• Correcting dim lights or electrical load issues
• Replacing a failed alternator in Toyota Highlander, Lexus RX330, or Toyota Sienna vehicles

Installation Notes and Tips

Verify the vehicle’s original alternator specifications before installation, including amperage rating, pulley configuration, rotation direction, and regulator type. Confirm the connector and mounting layout match the existing unit on the vehicle. After installation, check charging voltage at the battery and inspect belt condition and tension to ensure proper system operation.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured electrical components built to OE manufacturer specifications for the listed applications. Part number 12591 is intended for direct replacement use on the confirmed Toyota and Lexus fitments shown above.