WAI 11251N Alternator

WAI 11251N Alternator Overview

The WAI 11251N is a 100% new alternator built for vehicles that need steady charging output and reliable electrical performance. It is engineered with proprietary components and processes to support long service life in demanding daily driving conditions.

This alternator is a DENSO-family unit with a 170 amp rating, internal fan, internal regulator, and a clockwise (right) rotation. It includes a serpentine pulley with 6 grooves, and the decoupled or clutch pulley is not used on this application.

Key Features

• Part number: 11251N
• 170 amp output for higher electrical demand
• 100% new construction, not remanufactured
• Internal fan and internal voltage regulator
• Serpentine pulley with 6 grooves
• Clockwise (right) rotation
• DENSO family design
• Pulley included

Application Details

Compatible with select Cadillac XTS, Chevrolet Impala, Chevrolet Impala Limited, and Suzuki XL-7 applications that use the listed Denso IR/IF or Opt 170 amp configuration. Fits 2013-2019 Cadillac XTS, N/A, Denso IR/IF, 170 Amp; fits 2014-2016 Chevrolet Impala Limited, N/A, Denso IR/IF, 170 Amp; fits 2013-2014 Chevrolet Impala, N/A, Denso IR/IF, 170 Amp; fits 2008-2009 Suzuki XL-7, N/A, Opt, 170 Amp; fits 2007 Suzuki XL-7, N/A, Denso IR/IF, 170 Amp.

This part cross-references BBB Industries 11251 for the same application.

What This Alternator Helps Address

• Battery warning lights caused by low charging output
• Dim headlights or unstable electrical performance
• Charging system faults on high-demand vehicles
• Alternator noise or bearing-related charging issues
• Failure of the original DENSO-style alternator assembly

Installation Notes

Verify pulley groove count, rotation direction, amperage rating, and regulator style before installation. Confirm the vehicle uses the listed DENSO-family configuration and match the application notes for Cadillac XTS, Chevrolet Impala, Chevrolet Impala Limited, or Suzuki XL-7. Inspect the belt condition and charging system connectors during replacement to help ensure proper operation.

Quality Assurance

WAI builds this alternator as a new unit using proprietary components and manufacturing processes focused on service life and performance. The 11251N is produced to deliver the amperage needed for modern vehicle electrical loads.