WAI 11786N Alternator
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WAI

WAI 11786N Alternator

Brand WAI 11786N
12 12
Fan Type Internal
Rotation Direction Clockwise (right)
Pulley Included Yes
Family Denso
Pulley Groove Quantity 6
Pulley Belt Type Serpentine
Regulator Type Internal
Decoupled Or Clutch Pulley Yes
Amperage Rating 150
Fits Cadillac · 5 vehicles

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

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

DENSO family design. Uses an internal regulator, internal fan, and serpentine pulley setup.

Cross-references Unity Automotive 11786, 104210-1950 and 104210-1951 for the same application. See all 5.

$212.86Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $212.86
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Alternator options

Overview

This WAI alternator, part number 11786N, is a 100% new replacement built for modern charging demands. It delivers 150 amps and uses an internal regulator, internal fan, and decoupled clutch pulley for efficient operation.

Compatible With Cadillac ATS and Cadillac CTS applications listed below, this alternator is built around a DENSO family design with a serpentine pulley setup. The 11786N is a direct-fit electrical replacement for vehicles that require the specified 150A configuration.

Key Features

  • 100% new alternator, not remanufactured
  • 150-amp output for higher electrical demand
  • Internal regulator and internal fan design
  • 6-groove pulley for serpentine belt systems
  • Decoupled clutch pulley included
  • DENSO family construction

Detailed Description

WAI engineers this alternator to supply the amperage needed by today’s vehicle electrical systems. The 11786N uses proprietary components and manufacturing processes to support consistent performance and long service life. Its clockwise rotation, internal regulation, and pulley configuration make it a fitment-specific replacement for the listed Cadillac ATS and Cadillac CTS applications.

This part cross-references Monroe Shocks & Struts (e.g., 11786) for the same application.

What It Is Used For

  • Charging system warning lights caused by alternator output loss
  • Battery drain from insufficient charging performance
  • Electrical instability under accessory load
  • Noise or pulley-related charging system concerns
  • Replacement after alternator failure or wear

Installation Notes and Tips

Verify pulley type, rotation direction, amperage rating, and connector match before installation. Confirm the vehicle requires a DENSO IR/IF, 150A configuration for proper fitment. Use the listed application data for Cadillac ATS and Cadillac CTS models to confirm compatibility before service.

Quality Assurance

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

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersNotes
2015CadillacATS—3.6LV6Denso IR/IF, 150A
2015CadillacCTS—3.6LV6Denso IR/IF, 150A
2014CadillacATS—3.6LV6Denso IR/IF, 150A
2014CadillacCTSSedan3.6LV6Denso IR/IF, 150A
2013CadillacATS—3.6LV6Denso IR/IF, 150A
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Unity Automotive — 11786104210-1950104210-19512289784422942844