WAI 13866N Alternator

WAI 13866N Alternator Overview

The WAI 13866N is a 125-amp alternator built for vehicles that need steady charging output for modern electrical loads. This 100% new unit uses proprietary components and manufacturing processes to support long service life and consistent performance.

Compatible with Buick Rendezvous, Pontiac Aztek, and Pontiac G6 applications that call for a Valeo-style alternator, the WAI 13866N is a direct-fit charging component for select 2001-2007 models.

Key Features

• Part number: 13866N
• 125-amp amperage rating
• 100% new, not remanufactured
• Internal fan design
• Internal voltage regulator
• Clockwise (right) rotation
• 6-groove pulley included
• Serpentine belt pulley type
• Valeo family application
• No decoupled or clutch pulley

Detailed Description

WAI 13866N alternator is engineered for dependable charging output in vehicles equipped with higher electrical demand. It features an internal regulator, internal fan, and a 6-groove serpentine pulley to match the specified OE-style configuration. This part number 13866N is listed for select Buick Rendezvous, Pontiac Aztek, and Pontiac G6 models, including applications noted as Valeo units with 105-amp to 125-amp options supplied as 125 amp.

This part cross-references BBB Industries 13865 and 13866 for the same application.

Vehicle Fitment

• Fits 2005-2007 Buick Rendezvous, N/A — Std., 105 Amp to Opt., 125 Amp, Supplied as 125 Amp
• Fits 2002 Buick Rendezvous, N/A — Std., 105 Amp to Opt., 125 Amp, Supplied as 125 Amp
• Fits 2005 Pontiac Aztek, N/A — Std., 105 Amp to Opt., 125 Amp, Supplied as 125 Amp
• Fits 2001-2002 Pontiac Aztek, N/A — Std., 105 Amp to Opt., 125 Amp, Supplied as 125 Amp
• Fits 2005 Pontiac G6, N/A
• Fits 2003-2004 Buick Rendezvous, N/A — Valeo Unit, Opt, 105 to 125 Amp, Supplied as 125 Amp
• Fits 2003-2004 Pontiac Aztek, N/A — Valeo Unit, Opt, 105 to 125 Amp, Supplied as 125 Amp

What This Alternator Helps Address

• Low battery charging caused by a failing alternator
• Dim lights or unstable electrical output
• Battery warning light concerns related to charging system performance
• Accessory power issues from insufficient amperage output
• Charging system noise or irregular operation from worn internal components

Installation Notes and Tips

Verify pulley groove count, rotation direction, amperage rating, and regulator style before installation. Confirm the vehicle’s original charging system specification, especially on Buick Rendezvous and Pontiac Aztek models with 105-amp or 125-amp options. Match the Valeo-style application details to the existing unit before replacing the alternator.

Quality Assurance

WAI builds this alternator as a new replacement unit using proprietary components and processes to support durability and performance in daily driving conditions.