WAI 11137N Alternator

Alternator Overview

This WAI alternator is a 130-amp, 100% new replacement built for charging-system performance in Toyota and Lexus applications. It uses a DENSO family design with an internal regulator and a serpentine pulley setup for direct replacement needs. Part number 11137N is listed across multiple Toyota Avalon, Toyota Venza, Toyota Highlander, Lexus ES350, and Lexus RX350 applications.

Key Features

• 130-amp output for modern electrical loads
• 100% new unit, not remanufactured
• Internal regulator for integrated voltage control
• Internal fan design for compact packaging
• Serpentine belt pulley with 7 grooves
• Decoupled clutch pulley included
• DENSO family construction

Detailed Description

WAI builds this alternator to deliver the amperage required by vehicles with higher electrical demand. The unit is new from the start, using proprietary components and manufacturing processes intended to support long service life and consistent output. With a clockwise rotation, internal regulation, and a 7-groove serpentine pulley, part number 11137N matches the configuration used in a range of Toyota and Lexus charging systems.

Compatible With Toyota Avalon, Lexus ES350, Toyota Venza, Toyota Highlander, and Lexus RX350 applications where the listed DENSO 130-amp alternator configuration is specified. This part cross-references BBB Industries 11137 for the same application.

What It Helps Solve

• Low charging output from a failing alternator
• Battery warning lights related to charging-system faults
• Dim lights or unstable electrical performance
• Noise or pulley-related alternator issues
• Replacement needs for a worn original charging unit

Installation Notes and Tips

Verify pulley style, amperage rating, rotation direction, and connector match before installation. Confirm the vehicle uses the listed DENSO 130-amp configuration and compare the original unit to part number 11137N before removal. Fitment includes Toyota Avalon 2005-2018, Toyota Venza 2009-2016, Toyota Highlander 2010-2013, Lexus ES350 2007-2018, and Lexus RX350 2007-2009 in the configurations shown.

Quality Assurance

WAI states that this alternator is engineered for the amperage output needed by today’s vehicles and is manufactured as a new unit rather than remanufactured. Proprietary components and processes are used to support durability and performance.