WAI 11771N Alternator

Brand WAI 11771N
12 12
Fan Type Internal
Rotation Direction Clockwise (right)
Pulley Included Yes
Family Denso
Pulley Groove Quantity 5
Pulley Belt Type Serpentine
Regulator Type Internal
Decoupled Or Clutch Pulley Yes
Amperage Rating 120
Fits Fiat · 6 vehicles

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

120 amp output. Provides the charging capacity needed for modern electrical loads.

Serpentine pulley design. Includes a 5-groove pulley with decoupled clutch operation.

Cross-references Unity Automotive 11771, 104211-8370 and 56029703AA for the same application. See all 5.

$229.75Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $229.75
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

WAI 11771N is a 100% new alternator built for charging-system replacement on select Fiat applications. It uses an internal regulator, internal fan, and a decoupled clutch pulley to support stable output and smooth belt operation.

Key Features

  • 120 amp output for modern electrical loads
  • 100% new construction, not remanufactured
  • Internal regulator and internal fan design
  • 5-groove serpentine pulley included
  • Clockwise rotation with DENSO family design

Detailed Description

This WAI alternator, part number 11771N, is engineered to deliver the amperage needed for vehicles with higher electrical demand. The unit is built new with proprietary components and processes, and it includes a pulley with a decoupled clutch design for smoother accessory drive operation. Compatible With 2014-2019 Fiat 500, N/A, this alternator matches the Denso IR/IF, 120 amp application listed in the fitment data. This part cross-references Monroe Shocks & Struts (e.g., 11771) for the same application.

Common Issues It Can Address

  • Low charging output or battery warning lights
  • Voltage instability under electrical load
  • Alternator noise related to worn internal components
  • Belt drive concerns tied to pulley wear

Installation Notes

Verify pulley style, rotation direction, amperage rating, and connector match before installation. Confirm the vehicle uses the listed Denso IR/IF, 120 amp configuration for proper fitment. Part number 11771N should be matched against the original unit before replacement.

Quality Assurance

WAI states that this alternator is manufactured new rather than remanufactured and uses proprietary components and processes to support service life and performance.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2019Fiat5001.4LL4Denso IR/IF, 120 Amp
2018Fiat5001.4LL4Denso IR/IF, 120 Amp
2017Fiat5001.4LL4Denso IR/IF, 120 Amp
2016Fiat5001.4LL4Denso IR/IF, 120 Amp
2015Fiat5001.4LL4Denso IR/IF, 120 Amp
2014Fiat5001.4LL4Denso IR/IF, 120 Amp
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Unity Automotive — 11771104211-837056029703AAP56029703AATN104211-8370