MPA Electrical 7273409 Alternator

Remanufactured 78 Amp Alternator

The MPA Electrical 7273409 is a remanufactured 12-volt alternator built for Delco applications that require a 4-groove serpentine pulley, internal regulator, and clockwise rotation. With 78 amps of output and an external fan, it supports charging performance for select Buick, Oldsmobile, and Pontiac vehicles.

This remanufactured alternator is a direct-fit electrical replacement for vehicles such as the Buick Century, Buick Skyhawk, Oldsmobile Cutlass Ciera, Oldsmobile Firenza, and Pontiac 6000 when the listed equipment and notes match the application.

• 78 amp output for 12-volt charging systems
• Delco-style alternator with internal regulator
• External fan and clockwise rotation
• 4-groove serpentine pulley configuration
• Remanufactured for select OE-style replacement applications

Product Details and Fitment

MPA Electrical part number 7273409 is built around the listed electrical and pulley specifications to match the original charging system layout on supported vehicles. It cross-references BBB Industries 7273-9 for the same application. Use this alternator when you need a remanufactured replacement for a 78 amp Delco unit in a compatible Buick Century, Buick Skyhawk, Oldsmobile Cutlass Ciera, Oldsmobile Firenza, or Pontiac 6000 application.

• Fits 1985-1986 Buick Century, N/A; fits vehicles without air conditioning; remanufactured
• Fits 1984-1986 Buick Skyhawk, N/A; standard alternator with 78 amp output; remanufactured
• Fits 1986 Oldsmobile Cutlass Ciera, N/A; fits vehicles without air conditioning and with a heated back window; remanufactured
• Fits 1985-1986 Oldsmobile Firenza, N/A; fits vehicles with air conditioning; remanufactured
• Fits 1985-1986 Pontiac 6000, N/A; compatible with vehicles equipped with a heated back window; remanufactured
• Fits 1983-1984 Oldsmobile Firenza, N/A; standard alternator with 78 amp capacity, suitable for use with AC; remanufactured

What This Alternator Helps Address

• Low battery charging caused by a worn alternator
• Dim lights or electrical instability at idle
• Charging system warning lights related to alternator output
• Noise or bearing wear from an aging charging unit
• Replacement needs for Delco 12-volt serpentine-drive applications

Installation Notes and Tips

Confirm pulley groove count, regulator type, rotation, amperage, and vehicle equipment before installation. This unit uses a 4-groove serpentine pulley, internal regulator, external fan, and clockwise rotation, so matching the original alternator specifications is important for proper fitment. Verify whether the vehicle is equipped with air conditioning or a heated back window, since those notes affect application coverage.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to restore charging-system function for listed OE-style applications. Part number 7273409 is specified for supported Buick, Oldsmobile, and Pontiac fitments with the correct Delco configuration.