Bosch AL8730X Alternator

Bosch Remanufactured Alternator AL8730X

The Bosch AL8730X is a remanufactured 12-volt alternator built for charging-system replacement on select Chevrolet and GMC trucks, vans, and SUVs. It uses an internal fan, internal regulator, and a 6-groove pulley setup to match the listed applications.

Bosch Premium Alternators are remanufactured, tested, and built for dependable electrical performance in everyday driving. This AL8730X alternator is a direct-fit charging component for vehicles that require a 105-amp unit with the specified plug and pulley configuration.

Key Features

• 12-volt remanufactured alternator
• 105-amp amperage rating
• Internal fan and internal regulator
• Clockwise rotation
• 6-groove pulley included
• Aluminum case and aluminum case material
• External fan included
• External regulator included
• Plug type 313 with rear-view plug clocking at 6 o’clock
• One-wire capable: No

Detailed Description

Bosch AL8730X is a remanufactured alternator for charging-system service on 1999-2004 Chevrolet and GMC applications. It is listed for the Chevrolet Astro and GMC Safari, along with Silverado, Sierra, Suburban, Tahoe, Yukon, and Yukon XL models in the specified years and configurations. The AL8730X part number is also useful when cross-checking replacement needs against OE-style charging system requirements.

This part cross-references 10464438 and 10464451 for the same application.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage at idle or under load
• Dim headlights and weak electrical accessories
• Battery drain from a failing charging system
• Noise or charging instability from a worn alternator assembly

Installation Notes and Tips

• Verify the vehicle’s original alternator amperage, plug type, pulley groove count, and rotation before ordering.
• Confirm fitment for the exact model year and engine configuration listed for your Chevrolet or GMC application.
• Inspect the belt, battery, and charging cables during alternator replacement to avoid repeat failures.
• Match the rear plug clocking and mounting ear orientation to the original unit for proper installation.

Quality Assurance

Bosch remanufactured alternators are built and tested to meet charging-system performance and reliability requirements for the listed applications. The AL8730X is packaged as a boxed replacement unit for direct service use.