WAI 11378N Alternator

WAI 11378N Alternator for Ram and Dodge Ram

The WAI 11378N alternator is a 100% new charging unit built for vehicles that need steady electrical output for modern accessories and engine systems. It is engineered for DENSO-family applications and supplies 145 amps to support dependable charging performance in compatible Ram and Dodge Ram trucks.

Key Features

• 145-amp amperage rating for consistent charging output
• 100% new construction, not remanufactured
• DENSO family application
• Internal fan design
• Clockwise (right) rotation
• 8-groove serpentine pulley included
• Decoupled or clutch pulley included
• External regulator type

Detailed Description

Built for electrical, charging, and starting systems, the WAI 11378N alternator is made to replace DENSO-style units used in Ram heavy-duty trucks. The unit is supplied as a 145-amp alternator and uses proprietary components and manufacturing processes to support long service life and stable performance. This part cross-references BBB Industries 11378 for the same application. Use WAI 11378N when you need a direct-fit alternator for Ram 2500 and Ram 3500 charging system service.

What It Helps Address

• Low battery charging caused by a weak alternator
• Battery warning light concerns related to charging output
• Dim lights or electrical instability under load
• Charging system strain from accessories and vehicle electronics
• Alternator noise or pulley-related charging issues

Installation Notes and Fitment

• Fits 2011-2012 Ram 2500, Denso Unit, 145 to 160 Amp, Supplied as 145 Amp
• Fits 2011 Ram 3500, Denso Unit, 145 to 160 Amp, Supplied as 145 Amp
• Fits 2010 Dodge Ram 2500, Denso Unit, 145 to 160 Amp, Mexico, Supplied as 145 Amp
• Fits 2007-2010 Dodge Ram 3500, Denso Unit, 145 to 160 Amp, Supplied as 145 Amp
• Fits 2007-2009 Dodge Ram 2500, Denso Unit, 145 to 160 Amp, Supplied as 145 Amp

Verify pulley style, connector layout, and regulator configuration against the original unit before installation. This alternator is specified for DENSO-unit applications with an external regulator and serpentine belt drive.

Quality Assurance

WAI builds this alternator as a new replacement unit using proprietary components and processes to support maximum life and performance in demanding charging-system applications.