Bosch AL46X Alternator

Bosch AL46X Remanufactured Alternator

The Bosch AL46X is a remanufactured 12-volt alternator built for charging-system service on select BMW applications. It is specified with an 80-amp rating, internal regulator, external fan, clockwise rotation, and aluminum case construction for a direct-fit electrical replacement.

Bosch Premium Alternators are remanufactured, tested, and built to deliver consistent charging performance and dependable operation. The AL46X is a practical choice when you need a replacement alternator for BMW 318i, 325e, 528e, 533i, and 735i models with the listed 80-amp configuration.

Key Features

• 12-volt remanufactured alternator
• 80-amp amperage rating
• Internal regulator with external regulator included
• External fan included
• Clockwise rotation direction
• Aluminum case and aluminum case color
• Plug type 381 with rear-view plug clocking at 7 o’clock
• No pulley included; 1V pulley/belt type specification
• One-wire capable: No

Detailed Description

This Bosch AL46X alternator is engineered for charging-system replacement on select BMW vehicles, including 1983-1984 BMW 533i, 1984-1985 BMW 318i, 1984-1985 BMW 528e, 1985 BMW 325e, 1985 BMW 735i, and 1986 BMW 735i. It is a remanufactured unit with a 12-volt design, 80-amp output, internal regulator, and external fan, making it a direct electrical service part for the specified applications. The AL46X part number is also useful when cross-checking Bosch AL46X alternator listings for BMW charging-system repair.

This part cross-references Bosch AL46X for the same application.

Common Problems It Can Address

• Low battery charge caused by alternator output loss
• Charging warning light concerns related to alternator failure
• Dim lights or unstable electrical performance from weak charging voltage
• Battery drain symptoms when the charging system is not maintaining voltage
• Noise or wear issues associated with a failing alternator assembly

Installation Notes and Tips

Verify the vehicle’s alternator output rating, plug type, rotation direction, and pulley setup before installation. The AL46X does not include a pulley, so reuse or source the correct pulley arrangement for the vehicle’s belt system. Confirm the connector orientation and mounting-ear clocking match the original unit on your BMW 318i, 325e, 528e, 533i, or 735i before final assembly.

Quality Assurance

Bosch Premium Alternators are remanufactured and tested to support reliable charging-system performance. The AL46X is built as a remanufactured Bosch electrical component for the listed BMW applications.