WAI 21139N Alternator

Alternator for Honda Fit

This WAI alternator is a new, 105-amp replacement built for charging-system service on the Honda Fit. It uses an internal regulator and internal fan design to support stable electrical output in daily driving.

Key Features

• 100% new unit, not remanufactured
• 105-amp amperage rating for modern electrical loads
• Internal regulator for integrated voltage control
• Internal fan design for compact alternator construction
• Clockwise rotation, right-hand rotation direction
• Mitsubishi family design

Detailed Description

WAI part number 21139N is an alternator engineered for vehicles that need dependable charging performance from a new replacement unit. The 105-amp output, internal regulator, and clockwise rotation make it a direct-fit electrical service part for the Honda Fit application listed here. WAI builds this alternator with proprietary components and processes to support long service life and consistent performance. Part number 21139N is also cross-referenced to Gates 21139 for the same application.

What It Is Used For

• Restoring charging output when the battery is not staying charged
• Replacing an alternator with worn internal components
• Addressing dim lights or unstable electrical performance
• Correcting charging-system faults tied to alternator output

Installation Notes and Tips

Verify the amperage rating, rotation direction, regulator type, and connector style against the removed unit before installation. Confirm fitment for 2017-2020 Honda Fit, N/A, using the application notes provided. Inspect the belt, battery condition, and charging connections during service to avoid repeat charging issues.

Quality Assurance

WAI states that this alternator is 100% new and manufactured with proprietary components and processes to support maximum life and performance.