WAI 13912N Alternator

WAI 13912N Alternator Overview

The WAI 13912N is a 100% new alternator built for vehicles that need dependable charging output and OE-style fitment. It delivers 136 amps and uses a DENSO family design with an internal fan, external regulator, and clockwise rotation for the listed Dodge and Jeep applications.

Compatible with 2001-2006 Dodge Durango, 2002-2006 Dodge Ram 1500, 2002 Jeep Grand Cherokee, and 2002 Jeep Liberty, this alternator is built for direct replacement service where the original charging unit has failed or is no longer maintaining system voltage. The WAI New product line focuses on new, not remanufactured, electrical components for charging and starting repairs.

Key Features

• Part number: 13912N
• 136-amp output for charging system demand
• 100% new construction, not remanufactured
• DENSO family alternator design
• Internal fan for cooling
• External regulator type
• Clockwise (right) rotation
• Serpentine belt pulley included
• 6-groove pulley configuration
• Decoupled or clutch pulley: No

Detailed Description

The WAI 13912N alternator is engineered to supply the amperage needed for modern vehicle electrical loads while maintaining the correct mounting and operating characteristics for the listed applications. It is a direct-fit charging component for Dodge Durango, Dodge Ram 1500, Jeep Grand Cherokee, and Jeep Liberty models that use the specified DENSO-style setup. If you are replacing a worn alternator on a 2001-2006 Dodge Durango or a 2002-2006 Dodge Ram 1500, this unit provides the correct 136-amp specification and pulley configuration for the application.

This part cross-references BBB Industries 13912 for the same application.

What It Helps Fix

• Battery warning light caused by low alternator output
• Weak charging performance during idle or accessory use
• Voltage drop from a failing alternator
• Electrical system issues tied to insufficient amperage
• Starting problems caused by poor battery recharge

Installation Notes and Tips

• Verify the vehicle uses the listed DENSO family configuration before installation.
• Confirm pulley groove count, belt type, and rotation direction match the original unit.
• Inspect the serpentine belt, tensioner, and charging cables during replacement.
• Check battery condition and charging voltage after installation to confirm system performance.

Quality Assurance

WAI New alternators are built as new electrical units using proprietary components and manufacturing processes to support long service life and consistent performance. The 13912N is produced to meet the charging requirements of the listed Dodge and Jeep applications.