Bosch AL4072X Alternator

Bosch AL4072X Remanufactured Alternator

The Bosch AL4072X is a remanufactured 12-volt alternator built for charging-system performance and dependable electrical output. It is a direct-fit option for select Hyundai Elantra, Kia Soul, Kia Spectra, and Kia Spectra5 applications with 90-amp alternator coverage where specified.

Bosch Premium Alternators are remanufactured, tested, and built to deliver consistent operation in everyday driving conditions. This unit includes an internal fan, internal regulator, and a 4-groove pulley with a 60 mm outside diameter for the specified belt setup.

Key Features

• 12-volt remanufactured alternator for charging-system replacement
• 90-amp amperage rating for listed applications
• Internal fan and internal regulator design
• Clockwise rotation
• 4-groove pulley included
• Aluminum case and aluminum case color
• External fan included and external regulator included as listed
• Plug type 427 with rear-view plug clock position at 6 o’clock

Product Details

The Bosch AL4072X alternator is engineered for vehicles that require a remanufactured charging component with the correct mounting, pulley, and electrical configuration. It cross-references Bosch AL4072X and interchange number 3730023650 for the same application. For drivers searching for a remanufactured alternator for 2007-2009 Kia Spectra, a replacement alternator for 2007-2009 Kia Spectra5, or a charging-system repair for 2009-2012 Hyundai Elantra and 2010-2011 Kia Soul, this part matches the listed fitment and specifications.

Bosch Premium Alternators are designed, built, and tested to support reliable electrical performance. The remanufactured construction makes this a practical replacement when the original alternator no longer maintains proper charging output, belt drive operation, or stable voltage delivery.

What This Alternator Helps Fix

• Battery warning light caused by alternator charging failure
• Low-voltage conditions that affect starting and electrical accessories
• Dim headlights or inconsistent electrical output
• Charging-system noise or belt-drive issues tied to a worn alternator
• Vehicle stalling or repeated battery drain from weak charging performance

Installation Notes and Fitment

• Fits 2009-2012 Hyundai Elantra, N/A, to 90 Amp Alternator
• Fits 2007-2009 Hyundai Elantra, N/A
• Fits 2010-2011 Kia Soul, N/A
• Fits 2007-2009 Kia Spectra, N/A, to 90 Amp Alternator
• Fits 2007-2009 Kia Spectra5, N/A, to 90 Amp Alternator

Verify the plug type, pulley configuration, amperage rating, and mounting-ear orientation before installation. Confirm that the vehicle uses the listed 90-amp alternator application and that the belt system matches the included 4-groove pulley.

Quality Assurance

Bosch remanufactured alternators are built and tested to meet application-specific performance requirements. The AL4072X is produced as a remanufactured electrical replacement for the listed Hyundai and Kia applications.