WAI 11940N Alternator

Alternator Overview

This WAI alternator, part number 11940N, is a new 180-amp charging unit built for vehicles that need steady electrical output. It is a direct-fit replacement for select Ram ProMaster and Chrysler Pacifica applications, with fitment listed for 2017-2025 models.

Key Features

• New, not remanufactured, for a fresh replacement unit.
• 180-amp output to support modern electrical loads.
• Internal fan design for controlled cooling.
• Clockwise rotation with a 6-groove serpentine pulley.
• External regulator configuration with a decoupled clutch pulley.
• DENSO family design for application-specific fitment.

Detailed Description

WAI builds this alternator to deliver the amperage required by today’s electrical systems while using proprietary components and manufacturing processes aimed at long service life. The 11940N is a new unit with a pulley included, and its 12-volt, clockwise-rotation layout matches the listed charging system requirements. For Ram ProMaster 1500, Ram ProMaster 2500, and Ram ProMaster 3500 applications, as well as Chrysler Pacifica and Chrysler Voyager fitments, this alternator is specified for 180-amp service. The 11940N also cross-references BBB Industries 11940 for the same application.

What It Helps Address

• Low charging output under accessory-heavy electrical demand.
• Battery drain caused by a weak alternator.
• Charging system warning lights tied to alternator failure.
• Voltage instability that can affect vehicle electronics.
• Replacement needs for a worn or failed factory alternator.

Installation Notes and Tips

Verify pulley groove count, belt type, rotation direction, regulator style, and amperage before installation. This alternator is listed for Ram ProMaster 1500, Ram ProMaster 2500, and Ram ProMaster 3500 applications, plus Chrysler Pacifica and Chrysler Voyager models, so confirm the exact year and charging-system configuration against the fitment data. Use the part number 11940N to match the correct application during ordering and service.

Quality Assurance

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