HomeBosch AL401X Alternator
Part #: AL401X

Bosch AL401X Alternator

Alternator (Remanufactured)
20 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Alternator (Remanufactured)
Fitment: Porsche, 911
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Reliable Alternator Replacement for Porsche 911

The Bosch AL401X Alternator (Remanufactured) is designed to provide dependable electrical charging performance for your Porsche 911. Engineered to meet OEM specifications, this 12-volt alternator ensures consistent power delivery and efficient operation.

  • Voltage: 12V for standard automotive electrical systems
  • Amperage Rating: 90 amps to support vehicle electrical demands
  • Rotation Direction: Clockwise for proper fit and function
  • External Fan Included for enhanced cooling
  • Internal Regulator Type with external regulator included
  • Aluminum Case Material and Color for durability and heat dissipation
  • Plug Type 406 with 7-pin rear view main mounting ear at 6 o'clock
  • Remanufactured quality meeting original equipment standards

About the Bosch Alternator (Remanufactured) Product Line

The Bosch Alternator (Remanufactured) line offers remanufactured alternators that maintain strict quality controls and OEM specifications. This product line focuses on restoring alternators to reliable working condition, providing a cost-effective alternative to new units without compromising performance. The AL401X is part of this line, ensuring compatibility and durability for Porsche 911 models.

Detailed Product Description

This Bosch AL401X alternator features a 12-volt system with a 90-amp output, suitable for the electrical requirements of the Porsche 911. The clockwise rotation and external fan design help maintain optimal operating temperatures, while the aluminum case provides lightweight strength and effective heat dissipation. The alternator includes an internal regulator and an external regulator, ensuring stable voltage regulation. The plug clock rear view main mounting ear positioned at 6 o'clock with 7 pins and plug type 406 ensures proper electrical connections and fitment. Note that this unit does not include a pulley, which must be sourced separately.

Common Applications and Issues Addressed

  • Replacement for failing or weak alternators in Porsche 911 vehicles
  • Resolves battery charging problems and electrical system malfunctions
  • Addresses overheating issues with external fan cooling
  • Corrects voltage regulation faults with internal and external regulators
  • Restores proper electrical output to support vehicle accessories and engine management

Installation Notes and Tips

  • Verify clockwise rotation direction matches your vehicle’s requirements
  • Ensure compatibility with Porsche 911 electrical connectors and mounting points
  • Confirm that the pulley is sourced separately as it is not included
  • Check the external fan and regulator connections during installation
  • Follow manufacturer torque specifications for mounting hardware

Quality Assurance and Warranty

As a remanufactured unit, the Bosch AL401X alternator undergoes rigorous testing to meet OEM standards for performance and reliability. The aluminum case and included external fan contribute to long service life. Warranty coverage details should be confirmed at the point of purchase, reflecting Bosch’s commitment to quality and customer satisfaction.

BrandBosch
Part NumberAL401X
PositionAlternator (Remanufactured)
Amperage Rating90
Case ColorAluminum
Case MaterialAluminum
Cases Per Pallet (ORLY)100
External Fan IncludedYes
External Regulator IncludedYes
Fan TypeExternal
New Or RemanufacturedRemanufactured
One Wire CapableNo
Original Equipment Manufacturer NamesPR
Outside Pulley Diameter0
PackagingBox
Plug Clock Rear View Main Mounting Ear at 6 O Clock7
Plug Type406
Pulley Groove Quantity0
Pulley IncludedNo
Pulley TypeNA
Pulley Type / Belt Type (Alternator)NA
Regulator TypeInternal
Rotation DirectionClockwise
Unit(s) per Car Qty (ORLY)1
Voltage12

This part fits 20 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
1989Porsche9113.3LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1989Porsche9113.2LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1989Porsche9113.6LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1988Porsche9113.3LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1988Porsche9113.2LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1987Porsche9113.3LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1987Porsche9113.2LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1987Porsche9113.3LH6N/AAlternator (Remanufactured)
1986Porsche9113.3LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1986Porsche9113.2LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1985Porsche9113.2LH6N/ATo 90 Amp Alternator; Alternator (Remanufactured)
1985Porsche9113.2LH6N/AAlternator (Remanufactured)
1985Porsche9113.3LH6N/AAlternator (Remanufactured)
1985Porsche9113.2LH6N/ATo 90 Amp Alternator; with Paris-Rhone Unit; Alternator (Remanufactured)
1984Porsche911Convertible3.2LH6N/ATo 90 Amp Alternator; with Paris-Rhone Unit; Alternator (Remanufactured)
1984Porsche911Targa3.2LH6N/AAlternator (Remanufactured)
1984Porsche911Coupe3.2LH6N/AAlternator (Remanufactured)
1984Porsche9113.2LH6N/AAlternator (Remanufactured)
1984Porsche9113.3LH6N/AAlternator (Remanufactured)
1984Porsche9113.2LH6N/ATo 90 Amp Alternator; with Paris-Rhone Unit; Alternator (Remanufactured)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

91160312005

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.