Bosch AL556X Alternator

Bosch AL556X Remanufactured Alternator Overview

The Bosch AL556X is a remanufactured 12-volt alternator built for dependable charging performance in select Chevrolet Corvette applications. It is configured with a 120-amp rating, external fan, internal regulator, and a 6-groove pulley to match the original charging system layout.

Compatible with 1984 Chevrolet Corvette late production and 1985 Chevrolet Corvette charging system applications, this Bosch alternator is a direct-fit electrical replacement for vehicles needing OE-style alternator performance. Bosch Premium Alternators are remanufactured, tested, and built for consistent operation under everyday driving demands.

Key Features

• Remanufactured Bosch alternator for 12-volt charging systems
• 120-amp amperage rating for OE-style electrical output
• Internal regulator with external fan design
• 6-groove pulley included for belt-driven applications
• Clockwise rotation
• Aluminum case and aluminum case material for durable construction
• Plug type 151 with rear-view plug clock position at 12 o’clock
• Fits 1984 Chevrolet Corvette late production and 1985 Chevrolet Corvette
• Part number AL556X for catalog and cross-reference lookup

Detailed Description

The Bosch AL556X remanufactured alternator is engineered for Chevrolet Corvette owners who need a replacement charging unit that matches the vehicle’s original electrical requirements. With a 120-amp output, 12-volt system compatibility, and a 6S pulley setup, it supports stable battery charging and consistent electrical supply for the vehicle’s accessories and ignition system. The Bosch Premium Alternators line focuses on performance, reliability, and tested remanufactured construction, making this unit a practical choice for restoring charging-system function on the 1984 Chevrolet Corvette and 1985 Chevrolet Corvette.

This part cross-references 10479868 for the same application.

What This Alternator Helps Address

• Battery warning light caused by alternator output loss
• Weak charging performance during driving
• Electrical system voltage drop under load
• Charging issues related to worn internal alternator components
• Fitment problems when replacing an OE-style Corvette alternator

Installation Notes and Tips

Verify pulley alignment, connector style, and mounting-ear orientation before installation. Confirm the vehicle’s charging system requirements match the 120-amp specification and the plug type 151 configuration. For 1984 Chevrolet Corvette late production and 1985 Chevrolet Corvette applications, compare the original unit’s clocking, rotation direction, and belt groove count to ensure proper fitment.

Quality Assurance

Bosch Premium Alternators are remanufactured, built, and tested to support reliable charging-system performance. The AL556X is packaged as a Bosch remanufactured replacement alternator for direct application matching in the listed Chevrolet Corvette models.