MPA Electrical 8156603N Alternator

Alternator for GM 3.1L and 3.8L Applications

The MPA Electrical 8156603N is a new 12-volt alternator built for select Buick, Chevrolet, Oldsmobile, and Pontiac applications that use a Delco-style charging system. It delivers 100 amps with an internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine pulley for direct replacement service.

Use this alternator when you need a replacement for a 1997 Buick Century with RPO code K60 and a 100 amp alternator, or for 1995-1997 Chevrolet Lumina and Monte Carlo, 1994-1997 Oldsmobile Cutlass Supreme and Pontiac Grand Prix, and 1994-1996 Buick Regal applications. The MPA Electrical 8156603N also cross-references 8156-3 for the same application.

Key Features

• 100 amp output for 12-volt charging systems
• Internal regulator for simplified electrical control
• Internal fan design
• 6-groove serpentine pulley
• Clockwise rotation
• Delco manufacturer style
• New replacement unit from MPA Electrical

Detailed Description

MPA Electrical 8156603N is an alternator replacement for GM vehicles that require a Delco-style unit with a 3:00 clock position, internal fan, and internal regulator. It is built for direct-fit service on 1997 Buick Century, 1995-1997 Chevrolet Lumina, 1995-1997 Chevrolet Monte Carlo, 1994-1997 Oldsmobile Cutlass Supreme, 1994-1997 Pontiac Grand Prix, 1994-1996 Buick Regal, and 1993 Oldsmobile Cutlass Supreme applications with internal fan notes. This part number, 8156603N, is a practical match for buyers searching for a 100 amp alternator for Buick Regal, Chevrolet Lumina alternator replacement, or Pontiac Grand Prix charging system service.

What It Helps Fix

• Battery warning light caused by weak charging output
• Low system voltage during driving or idle
• Dim headlights and electrical accessories
• Charging system noise or unstable voltage output
• Alternator failure on Delco-style GM applications

Installation Notes and Tips

Confirm pulley groove count, rotation, amperage, and connector style before installation. This unit is listed with a 6-groove serpentine pulley, clockwise rotation, internal fan, and 3:00 clock position, so matching the original unit is important for proper fitment. Verify vehicle-specific notes such as the 1997 Buick Century RPO code K60 and 100 amp alternator requirement before ordering.

Quality Assurance

MPA Electrical supplies this new alternator as a replacement electrical component for GM charging system service. The part is built to the listed specifications for fitment and electrical output, including 12 volts, 100 amps, and internal regulation.