MPA Electrical 15630 Alternator

Remanufactured Alternator for Geo and Isuzu

MPA Electrical Part Number 15630 is a remanufactured 12-volt alternator built for charging-system service on select Geo and Isuzu vehicles. It delivers 75 amps and uses an internal regulator, internal fan, and a 4-groove serpentine pulley for applications that call for a Nippondenso-style unit.

This alternator is a direct-fit replacement for select 1990-1993 Geo Storm, 1990-1992 Isuzu Impulse, and 1991-1993 Isuzu Stylus applications. If you are searching for a remanufactured alternator for a 1991-1993 Geo Storm or a 1993 Isuzu Stylus with a 75 amp alternator, Part Number 15630 matches the listed OE-style configuration.

Key Features

• 75 amp output for 12-volt charging systems
• Internal voltage regulator for simplified electrical control
• Internal fan design
• 4-groove serpentine pulley
• Clockwise rotation
• Manufacturer style: Nippondenso
• Clock position: 12:00
• Remanufactured electrical component

Detailed Description

MPA Electrical 15630 is a remanufactured alternator intended for vehicles originally equipped with a Nippondenso alternator configuration. The unit is specified at 75 amps and 12 volts, with an internal regulator and internal fan to match the electrical and mechanical requirements of the listed applications. The 4-groove serpentine pulley and clockwise rotation help ensure proper belt alignment and charging-system operation in the correct vehicle setup.

Fitment includes 1990 Geo Storm with Nippondenso alternator, 1991-1993 Geo Storm, 1990-1992 Isuzu Impulse with Nippondenso alternator, 1991-1992 Isuzu Impulse, 1991-1992 Isuzu Stylus, and 1993 Isuzu Stylus with standard 75 amp alternator equipment. Part Number 15630 also cross-references BBB Industries 13423 for the same application.

What It Helps Address

• Battery warning light caused by alternator output loss
• Low charging voltage at the battery
• Dim lights or electrical instability at idle
• Charging-system failure after alternator wear
• Replacement needs for a Nippondenso-style 75 amp unit

Installation Notes and Tips

Verify pulley groove count, rotation, regulator style, and connector match before installation. Confirm the vehicle uses the listed Nippondenso-style alternator configuration and compare the removed unit to Part Number 15630 for fitment accuracy. After installation, check belt tension, charging voltage, and battery condition to confirm proper system operation.

Quality Assurance

MPA Electrical remanufactured components are rebuilt for charging-system replacement service and specified to the listed electrical and mechanical configuration. This alternator is remanufactured to support direct replacement needs on the confirmed Geo Storm, Isuzu Impulse, and Isuzu Stylus applications.