Remy 12782 Alternator

Remanufactured Alternator for Buick and Cadillac

The Remy Premium Remanufactured 12782 alternator is a 12-volt charging system component built for select Buick Lucerne and Cadillac DTS applications. With a 150 amp amperage rating, internal voltage regulation, and an included pulley, it supports stable electrical output for vehicles that rely on a high-capacity alternator.

Compatible with 2006-2011 Buick Lucerne and 2006-2011 Cadillac DTS, this Remy alternator is remanufactured to match the OE-style application used by Nippondenso-equipped systems. The Remy 12782 is a direct-fit charging replacement for drivers searching for a 150 amp alternator for Buick Lucerne or a remanufactured alternator for Cadillac DTS.

Key Features

• 150 amp amperage rating for higher-output charging applications
• 12-volt alternator with internal voltage regulator
• Internal fan design
• Clockwise rotation
• Pulley included
• Remanufactured Premium Remanufactured line from Remy
• OE manufacturer reference: Nippondenso

Detailed Description

Remy Part Number 12782 is a remanufactured alternator engineered for vehicles using the Nippondenso OE design. It is specified for 2006-2011 Buick Lucerne and 2006-2011 Cadillac DTS applications, including Cadillac DTS Exc Limousine models noted at 150 amps. The internal regulator helps manage charging output within the vehicle’s electrical system, while the 150 amp rating supports the demands of modern accessories and vehicle electronics. If you are replacing a worn charging unit on a Buick Lucerne or Cadillac DTS, Remy 12782 provides a fitment-specific replacement option.

The Premium Remanufactured product line focuses on remanufactured electrical components built for direct replacement use. This part cross-references 104210-4370 and 20843302 for the same application.

What This Alternator Helps Resolve

• Battery warning light caused by alternator output loss
• Low charging voltage during driving or idle
• Dim lights or unstable electrical performance
• Battery drain related to charging system failure
• Noise or charging issues from a worn alternator assembly

Installation Notes and Tips

Verify the vehicle’s OE alternator configuration before installation, including amperage rating, rotation direction, and regulator type. Confirm pulley style and electrical connector match the original unit on the vehicle. For best results, inspect the battery, belt condition, and charging circuit before installing the replacement alternator. Fitment is listed for 2006-2011 Buick Lucerne and 2006-2011 Cadillac DTS, so confirm the exact application against the vehicle’s charging system specifications.

Quality Assurance

Remy Premium Remanufactured electrical components are remanufactured to support OE-style replacement needs. Part Number 12782 is built for the specified Buick Lucerne and Cadillac DTS applications and follows the original Nippondenso-based design reference.