Remy 91506 Alternator

Remy 91506 Alternator Overview

The Remy 91506 is a new 12-volt alternator built for charging-system replacement on select GM vehicles. It delivers 105 amps, uses an internal fan and internal voltage regulator, and includes the pulley for a direct-fit service replacement.

Remy New line components are built as new electrical replacements for charging and starting applications, giving technicians a straightforward option when replacing a worn alternator on a Buick Century, Chevrolet Lumina, Chevrolet Monte Carlo, Pontiac Grand Prix, Buick Regal, or Oldsmobile Cutlass Supreme.

Key Features

• 105 amp amperage rating for factory-style charging output
• 12-volt alternator with internal voltage regulator
• Internal fan design for integrated cooling
• Pulley included for installation convenience
• Clockwise rotation
• New alternator, not remanufactured
• OE manufacturer reference: Delco/Delphi
• Part number: 91506

Detailed Description

Remy 91506 is an alternator replacement for vehicles that require a 105 amp charging system and clockwise rotation. It is listed for 1997 Buick Century with option code K60, 1995-1997 Chevrolet Lumina and Monte Carlo, 1994-1997 Pontiac Grand Prix, 1994-1996 Buick Regal, and 1993-1995 Oldsmobile Cutlass Supreme. This alternator is not for vehicles with less than 105 amps capacity.

As a new OE-style replacement tied to Delco/Delphi applications, the Remy 91506 supports proper battery charging and stable electrical system operation in the Buick Century, Chevrolet Lumina, and related GM platforms. The included pulley and internal regulator help simplify replacement of the original charging unit.

This part cross-references Delco/Delphi applications (e.g., 10463390, 10463405) for the same application.

Common Problems This Part Can Address

• Battery warning light caused by alternator output loss
• Low charging voltage during driving or idle
• Dim headlights and reduced electrical performance
• Battery drain from a failing charging system
• Noise or charging instability from a worn alternator assembly

Installation Notes and Tips

• Verify the vehicle uses a 105 amp charging system before ordering.
• Confirm clockwise rotation and pulley configuration match the original unit.
• Check connector style, belt alignment, and mounting points during replacement.
• Inspect the battery and charging cables after installation to confirm system performance.
• Use the vehicle notes for fitment on 1997 Buick Century with option code K60 and on the listed GM applications.

Quality Assurance

Remy New electrical components are built as new replacement parts for charging and starting service. The OE manufacturer reference to Delco/Delphi helps identify the original application family for this alternator.