WAI 11878N Alternator

Brand WAI 11878N
12 12
Fan Type Internal
Family Denso
Regulator Type Internal
Amperage Rating 240
Fits Ford · 6 vehicles

100% new unit. Not remanufactured, with proprietary components and processes.

240-amp output. Built to supply the electrical demand of modern charging systems.

Internal regulator. Integrated voltage control in a compact alternator design.

Cross-references Dixie Electric Ltd 11878, 104211-0500 and 104211-0501 for the same application. See all 6.

$319.65Free shipping
In stock · usually ships same day before 1pm CST
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Order total $319.65
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Free returns within 60 days if it doesn't fit when fitment is verified.

Alternator Overview

The WAI 11878N alternator is a new, 240-amp charging unit built for vehicles that need strong electrical output. It is engineered for dependable power delivery and uses an internal regulator and internal fan design for integrated operation.

Key Features

  • 100% new alternator, not remanufactured
  • 240-amp amperage rating for higher electrical demand
  • Internal regulator for integrated voltage control
  • Internal fan design for compact packaging
  • DENSO family application

Detailed Description

WAI designs the 11878N to provide the amp output needed for modern charging systems and accessory loads. As a new unit built with proprietary components and processes, it is intended for direct replacement use in charging system service. This alternator cross-references Dixie Electric Ltd 11878 for the same application. Fits 2017-2019 Ford F-450 Super Duty and Fits 2017-2019 Ford F-550 Super Duty, 240 amp.

What It Is Used For

  • Restoring charging output when the original alternator can no longer maintain system voltage
  • Addressing battery warning lights caused by charging system underperformance
  • Replacing a worn or failed alternator in high-demand electrical systems
  • Supporting stable electrical operation under accessory and load demands

Installation Notes and Tips

Verify the amperage rating, regulator type, fan type, and DENSO family match the original unit before installation. Confirm the vehicle application by year, make, and model, and compare connector and mounting details to the removed alternator. Fits 2017-2019 Ford F-450 Super Duty and Fits 2017-2019 Ford F-550 Super Duty, 240 amp.

Quality Assurance

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

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2019FordF-450 Super Duty6.8LV10240 Amp
2019FordF-550 Super Duty6.8LV10240 Amp
2018FordF-450 Super Duty6.8LV10240 Amp
2018FordF-550 Super Duty6.8LV10240 Amp
2017FordF-450 Super Duty6.8LV10240 Amp
2017FordF-550 Super Duty6.8LV10240 Amp
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dixie Electric Ltd — 11878104211-0500104211-0501HC3T-10300-DBHC3T-10300-DCHC3Z-10346-D