WAI 20402N Alternator

Overview

This WAI alternator is a new, non-remanufactured charging component built for Jeep Grand Cherokee applications that require 220 amp output. It uses an internal regulator, internal fan design, and a decoupled clutch pulley to support stable electrical performance under demanding load conditions. Part number 20402N is a direct-fit replacement for the listed applications.

Key Features

• 220 amp output for higher electrical demand
• 100% new construction, not remanufactured
• Internal regulator and internal fan design
• 6-groove pulley with serpentine belt drive
• Clockwise rotation with pulley included
• DENSO family design for listed fitment

Detailed Description

WAI builds this alternator to deliver the amperage needed by modern vehicle electrical systems while maintaining consistent charging performance. The 20402N is specified with a 12-volt electrical setup, clockwise rotation, internal regulation, and a decoupled clutch pulley, making it a fit-focused replacement for Jeep Grand Cherokee charging system service. The 6-groove serpentine pulley and included pulley configuration match the listed application requirements, helping simplify replacement selection. Part number 20402N is also referenced as 20402 in cross-reference listings for the same application.

Compatible with Jeep Grand Cherokee models from 2014-2021, this alternator covers the listed 220 amp applications and supports vehicles that need a direct replacement in the charging system. The WAI New product line emphasizes fully new components and proprietary manufacturing processes, which are used here to support long service life and dependable output.

What It Is Used For

• Charging system failure diagnosis tied to low or unstable output
• Battery warning light concerns related to alternator performance
• Electrical load issues from accessories and vehicle systems
• Replacement after pulley, regulator, or internal component wear
• Service on Jeep Grand Cherokee 220 amp charging applications

Installation Notes and Tips

Verify the amperage rating, pulley style, rotation direction, and regulator type against the original unit before installation. Confirm serpentine belt routing and electrical connector match the vehicle’s existing charging system configuration. Use the listed fitment details for Jeep Grand Cherokee applications only, and compare part number 20402N with the original alternator before replacement.

Quality Assurance

WAI states that this alternator is 100% new and manufactured with proprietary components and processes to support maximum life and performance. The New product line is positioned as a new-build replacement solution rather than a remanufactured unit.